
The Dream of Generative AI Engineering - Koji Nishiguchi, Nagoya University
https://www3.nhk.or.jp/nhkworld/en/shows/2015315/
Updated on 2025/04/01
Personnel Information
Research Activity
Education Activity
Contribution to Society
Updated on 2025/04/01
Computational mechanics
high-performance computing
Eulerian method
Fluid-structure interaction problem
nonlinear structure dynamics
3D generative AI
Informatics / High performance computing
Informatics / Computational science
Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Fluid engineering
Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Mechanics of materials and materials
Eulerian unified simulation method for structure and fluid dynamics for supercomputers and its industrial applications
3D generative AI based on structural simulations computed by supercomputer
Large-scale topology optimization methods suitable for supercomputers
Nagoya University Associate professor
2023.4
RIKEN Center for Computational Science Visiting Researcher
2020.9
More details
Country:Japan
Nagoya University Lecturer
2020.9 - 2023.3
More details
Country:Japan
University of Yamanashi Department of Mechanical Engineering, Faculty of Engineering Visiting researcher
2018.6
More details
Country:Japan
RIKEN RIKEN Center for Computational Science Postdoctoral Researcher
2018.4 - 2020.8
More details
Country:Japan
RIKEN Advanced Institute for Computational Science Postdoctoral Researcher
2016.4 - 2018.3
More details
Country:Japan
Nitto Denko Corporation Corporate R&D department
2010.4 - 2016.3
More details
Country:Japan
HIROSHIMA UNIVERSITY Doctoral course, Graduate School of Engineering Vehicle & Environmental Systems Program
2011.4 - 2015.9
More details
Country: Japan
Hiroshima University Master's Course, Graduate School of Engineering Civil & Environmental Engineering Program
2008.4 - 2010.3
More details
Country: Japan
Hiroshima University SCHOOL OF ENGINEERING CLUSTER 4 (Civil Engineering and Architecture)
2004.4 - 2008.3
More details
Country: Japan
International Association of Computational Mechanics
THE JAPAN SOCIETY FOR COMPUTATIONAL ENGINEERING AND SCIENCE
THE JAPAN SOCIETY OF MECHANICAL ENGINEERS
SOCIETY OF AUTOMOTIVE ENGINEERS OF JAPAN
JAPAN SOCIETY OF CIVIL ENGINEERS
Architectural Institute of Japan
日本計算工学会 マルチメソッド・新数値解析手法開拓研究会 主査
2022.4
More details
Committee type:Academic society
https://www.jsces.org/activity/research/multimethod/
日本計算工学会 第29回計算工学講演会実行委員会委員
2023.11 - 2024.6
More details
Committee type:Academic society
The Japan Society for Computational Engineering and Science (JSCES), Japan Association for Computational Mechanics Secretary General, The 4th International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE2025)
2023.9 - 2025.7
More details
Committee type:Academic society
日本計算工学会 第28回計算工学講演会実行委員会委員
2022.11 - 2023.6
More details
Committee type:Academic society
日本計算工学会 会誌委員会 幹事
2022.8
More details
Committee type:Academic society
日本建築学会 連続体力学の連成問題小委員会 委員
2022.4
More details
Committee type:Academic society
Local Executive Committee member, The 15th World Congress on Computational Mechanics (WCCM-XV) & the 8th Asian Pacific Congress on Computational Mechanics (APCOM-VIII)
2021.12 - 2022.8
More details
Committee type:Academic society
日本計算工学会 第27回計算工学講演会実行委員会委員
2021.10 - 2022.6
More details
Committee type:Academic society
日本計算工学会 会誌委員会 副幹事
2021.9 - 2022.7
More details
Committee type:Academic society
土木学会 土木学会 応用力学委員会 委員
2021.6
More details
Committee type:Academic society
都市・建築CFDコンソーシアム 台風時の都市・建築の機能性・安全性ワーキンググループ幹事
2021.4 - 2023.3
More details
Committee type:Academic society
日本計算工学会 第26回計算工学講演会実行委員会委員
2020.10 - 2021.5
More details
Committee type:Academic society
The 3rd International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE 2020) Local Arrangements Committee member
2018.4 - 2020.12
More details
Committee type:Academic society
https://www.compsafe2020.org/committees.html
理化学研究所 計算科学研究機構 R-CCS Cafe (旧:AICS Cafe) 世話人
2016.4 - 2017.3
More details
Committee type:Other
https://www.r-ccs.riken.jp/jp/outreach/r-ccscafe/
2022.6 日本計算工学会 骨折予防の為の粘弾性構造と空気の強連成解析
More details
Award type:Award from Japanese society, conference, symposium, etc. Country:Japan
2022.6 日本計算工学会 骨折予防の為の粘弾性構造と空気の強連成解析
More details
Award type:Award from Japanese society, conference, symposium, etc. Country:Japan
JSCES Graphics Award (Special Award: Meshman Data Science Award)
2021.5 The Japan Society for Computational Engineering and Science (JSCES)
More details
Country:Japan
Largely deformed structure-fluid interaction simulation for fracture prevention floor
JSCE Applied Mechanics Young Researcher Paper Award
2019.6 Applied Mechanics Committee, Japan Society of Civil Engineers
Koji Nishiguchi
More details
Award type:Honored in official journal of a scientific society, scientific journal Country:Japan
JSCE Applied Mechanics Symposium Award
2016.12 Applied Mechanics Committee, Japan Society of Civil Engineers
Koji Nishiguchi
More details
Award type:Award from Japanese society, conference, symposium, etc. Country:Japan
JSCES Paper Award
2015.5 The Japan Society for Computational Engineering and Science
Koji Nishiguchi
More details
Award type:Award from Japanese society, conference, symposium, etc. Country:Japan
JASNAOE Scholarship Award
2010.3 The Japan Society of Naval Architects and Ocean Engineers
Koji Nishiguchi
More details
Award type:Award from Japanese society, conference, symposium, etc. Country:Japan
JASNAOE Scholarship Award
2008.3 The Japan Society of Naval Architects and Ocean Engineers
Koji Nishiguchi
More details
Award type:Award from Japanese society, conference, symposium, etc. Country:Japan
Excellent student scholarship award
2007.12 Hiroshima University
Koji Nishiguchi
More details
Country:Japan
Topology Optimization for Large-Scale Unsteady Flow with the Building-Cube Method Reviewed
Ryohei Katsumata, Koji Nishiguchi, Hiroya Hoshiba, Junji Kato
International Journal for Numerical Methods in Engineering Vol. in press 2025
More details
Authorship:Corresponding author Language:English Publishing type:Research paper (scientific journal)
DOI: 10.1002/nme.70016
DOI: 10.1002/nme.70016
Multiscale Topology Optimization Applying FFT‐Based Homogenization Reviewed
Masayoshi Matsui, Hiroya Hoshiba, Koji Nishiguchi, Hiroki Ogura, Junji Kato
International Journal for Numerical Methods in Engineering Vol. in press 2025
More details
Language:English Publishing type:Research paper (scientific journal)
DOI: 10.1002/nme.70009
DOI: 10.1002/nme.70009
Plate manufacturing constraint in topology optimization using anisotropic filter Invited Reviewed
Yuji Wada, Tokimasa Shimada, Koji Nishiguchi, Shigenobu Okazawa, Makoto Tsubokura
Computer-Aided Design Vol. 180 page: 103823 2024.11
More details
Language:English Publishing type:Research paper (scientific journal)
DOI: https://doi.org/10.1016/j.cad.2024.103823
DOI: https://doi.org/10.1016/j.cad.2024.103823
Other Link: https://www.sciencedirect.com/science/article/pii/S0010448524001507
Generative model of three-dimensional shapes incorporating structural mechanics Reviewed
Issei Toida, Koji Nishiguchi, Naoya Chiba, Yuji Wada, Rio Yokota, Hiroya Hoshiba, Junji Kato
Transactions of the Japan Society for Computational Engineering and Science Vol. 2024 ( 1 ) page: 20241010 2024.6
More details
Authorship:Corresponding author Language:Japanese Publishing type:Research paper (scientific journal)
DOI: https://doi.org/10.11421/jsces.2024.20241010
DOI: https://doi.org/10.11421/jsces.2024.20241010
Other Link: https://www.jstage.jst.go.jp/article/jsces/2024/1/2024_20241010/_article/-char/en
Eulerian finite volume method using Lagrangian markers with reference map for incompressible fluid–structure interaction problems Reviewed International coauthorship
Koji Nishiguchi, Tokimasa Shimada, Christian Peco, Keito Kondo, Shigenobu Okazawa, Makoto Tsubokura
Computers & Fluids Vol. 274 page: 106210 2024.2
More details
Authorship:Lead author, Corresponding author Language:English Publishing type:Research paper (scientific journal)
DOI: https://doi.org/10.1016/j.compfluid.2024.106210
DOI: https://doi.org/10.1016/j.compfluid.2024.106210
Other Link: https://doi.org/10.1016/j.compfluid.2024.106210
Koji Nishiguchi, Shusuke Takeuchi, Hirofumi Sugiyama, Shigenobu Okazawa, Tadasuke Katsuhara, Keiichi Yonehara, Shigeki Kojima, Kosho Kawahara, Hiroya Hoshiba, Junji Kato
Proceedings of the International Conference on High Performance Computing in Asia-Pacific Region Vol. 2024 page: 145 - 153 2024.1
More details
Authorship:Lead author, Corresponding author Language:English Publishing type:Research paper (international conference proceedings)
Other Link: https://doi.org/10.1145/3635035.3635038
Large-Scale Topology Optimization for Unsteady Flow Using the Building-Cube Method Reviewed
Ryohei Katsumata, Koji Nishiguchi, Tokimasa Shimada, Hiroya Hoshiba, Junji Kato
Transactions of the Japan Society for Computational Engineering and Science Vol. 2023 page: 20230007 2023.10
More details
Language:Japanese Publishing type:Research paper (scientific journal)
Billion-design-variable-scale topology optimization of vehicle frame structure in multiple-load case Reviewed
Yuji Wada, Tokimasa Shimada, Koji Nishiguchi, Shigenobu Okazawa, Makoto Tsubokura
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering Vol. 238 ( 12 ) page: 3863 - 3874 2023.6
More details
Language:English Publishing type:Research paper (scientific journal)
DOI: https://doi.org/10.1177/09544070231184309
DOI: https://doi.org/10.1177/09544070231184309
Other Link: https://doi.org/10.1177/09544070231184309
脆性-延性複合構造物のトポロジー最適化のための拡張SIMP法の提案 Reviewed
藤原睦樹,干場大也,西口浩司,加藤準治
土木学会論文集A2(応用力学) Vol. 採択済み 2023.3
More details
Language:Japanese
Multi-material topology optimization considering strengths of solid materials and interface Reviewed
Daiki WATANABE, Hiroya HOSHIBA, Koji NISHIGUCHI, Junji KATO
Transactions of the Japan Society for Computational Engineering and Science Vol. 2023 page: 20230001 2023.2
More details
Language:Japanese Publishing type:Research paper (scientific journal)
Multi-material topology optimization considering properties of solid materials and interface Reviewed
Daiki WATANABE, Hiroya HOSHIBA, Koji NISHIGUCHI, Junji KATO
Transactions of the Japan Society for Computational Engineering and Science Vol. 2022 page: 20220017 2022.11
More details
Language:Japanese Publishing type:Research paper (scientific journal)
Transient thermal porous structure designed by two-scale concurrent topology optimization Reviewed
Naruethep SUKULTHANASORN, Mao KURUMATANI, Koji NISHIGUCHI, Junji KATO, Kenjiro TERADA
Transactions of the Japan Society for Computational Engineering and Science Vol. 2022 page: 20220004 2022.6
More details
Language:English Publishing type:Research paper (scientific journal)
Two-scale topology optimization for transient heat analysis in porous material considering the size effect of microstructure Reviewed International coauthorship
Naruethep Sukulthanasorn, Hiroya Hoshiba, Koji Nishiguchi, Mao Kurumatani, Robert Fleischhauer, Kuniharu Ushijima, Michael Kaliske, Kenjiro Terada, Junji Kato
Structural and Multidisciplinary Optimization Vol. in press 2022.4
More details
Language:English Publishing type:Research paper (scientific journal)
Shimada Tokimasa, Nishiguchi Koji, Bale Rahul, Okazawa Shigenobu, Tsubokura Makoto
International Journal for Numerical Methods in Engineering Vol. 123 ( 5 ) page: 1294 - 1328 2022.3
More details
Authorship:Corresponding author Language:English Publishing type:Research paper (scientific journal)
DOI: https://doi.org/10.1002/nme.6896
DOI: https://doi.org/10.1002/nme.6896
Other Link: https://onlinelibrary.wiley.com/doi/full/10.1002/nme.6896
Eulerian unified formulation for fluid-structure interaction problems using marker particles with Reference map Reviewed International coauthorship
Tokimasa SHIMADA, Koji NISHIGUCHI, Christian PECO, Shigenobu OKAZAWA, Makoto TSUBOKURA
Transactions of the Japan Society for Computational Engineering and Science Vol. 2022 page: 20220002 2022.2
More details
Authorship:Corresponding author Language:Japanese Publishing type:Research paper (scientific journal)
DOI: https://doi.org/10.11421/jsces.2022.20220002
DOI: https://doi.org/10.11421/jsces.2022.20220002
Other Link: https://www.jstage.jst.go.jp/article/jsces/2022/0/2022_20220002/_article/-char/en
Study on two-phase material topology optimization for transient heat conduction Reviewed
Keisuke TAKAARA, Hiroya HOSHIBA, Koji NISHIGUCHI, Junji KATO
Transactions of the Japan Society for Computational Engineering and Science Vol. 2022 page: 20220007 2022
More details
Language:Japanese Publishing type:Research paper (scientific journal)
Voxel topology optimization of vehicle frame structure using building cube method framework Reviewed
Yuji Wada, Tokimasa Shimada, Koji Nishiguchi, Shigenobu Okazawa, Makoto Tsubokura
Transactions of the Japan Society for Computational Engineering and Science Vol. 2021 page: 20210019 2021
More details
Language:Japanese Publishing type:Research paper (scientific journal)
DOI: https://doi.org/10.11421/jsces.2021.20210019
DOI: https://doi.org/10.11421/jsces.2021.20210019
Other Link: https://www.jstage.jst.go.jp/article/jsces/2021/0/2021_20210019/_article/-char/en
Nishiguchi Koji, Bale Rahul, Okazawa Shigenobu, Tsubokura Makoto
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Vol. 117 ( 2 ) page: 221 - 248 2019
More details
EULERIAN FINITE VOLUME FORMULATION USING LAGRANGIAN MARKER PARTICLES FOR COMPRESSIBLE SOLID ANALYSIS Reviewed
Koji NISHIGUCHI, Tokimasa SHIMADA, Masafumi OTAKA, Shigenobu OKAZAWA, Makoto TSUBOKURA
Journal of Applied Mechanics Vol. 75 ( 2 ) page: I_237 - I_248 2019
More details
Authorship:Lead author, Corresponding author Language:Japanese Publishing type:Research paper (scientific journal)
Multimaterial Eulerian finite element formulation for pressure-sensitive adhesives Reviewed
Koji Nishiguchi, Shigenobu Okazawa, Makoto Tsubokura
International Journal for Numerical Methods in Engineering Vol. 114 ( 13 ) page: 1368 - 1388 2018.6
More details
Language:English Publishing type:Research paper (scientific journal) Publisher:John Wiley and Sons Ltd
A temperature-dependent visco-hyperelastic formulation is proposed based on a Eulerian finite element method for large-deformation and multimaterial problems, which is pertinent in the application to pressure-sensitive adhesives. All the basic equations are computed in the Eulerian description because it allows arbitrarily large deformations. This formulation employs Simo's finite-strain viscoelastic model, where hyperelasticity is modeled as a novel strain-energy function of the left Cauchy-Green deformation tensor. The left Cauchy-Green deformation tensor is temporally updated from the Eulerian velocity field. Temperature dependence is described with the time-temperature superposition principle. To validate the proposed approach, we simulated tests of uniaxial tension with various tensile speeds and temperature conditions and performed a steel-ball-drop test on an acrylic pressure-sensitive adhesive.
DOI: 10.1002/nme.5790
Implicit particle-in-cell formulation for incompressible solid-fluid interaction problem Reviewed
Koji NISHIGUCHI, Rahul BALE, Shigenobu OKAZAWA, Makoto TSUBOKURA
Journal of Applied Mechanics Vol. 74 ( 2 ) page: I_253 - I_263 2018
More details
Koji NISHIGUCHI, Rahul BALE, Shigenobu OKAZAWA, Makoto TSUBOKURA
Journal of Applied Mechanics Vol. 73 ( 2 ) page: I_153‐I_163(J‐STAGE) - I_163 2017
More details
Language:Japanese Publishing type:Research paper (scientific journal) Publisher:公益社団法人 土木学会
Contact analysis using incompressible Eulerian FEM based on phantom-node method Reviewed
Koji NISHIGUCHI, Mao KURUMATANI, Shigenobu OKAZAWA, Makoto TSUBOKURA
Journal of Applied Mechanics Vol. 72 ( 2 ) page: I_143‐I_154(J‐STAGE) - I_154 2016
More details
Language:Japanese Publishing type:Research paper (scientific journal) Publisher:公益社団法人 土木学会
Voxel Solid-Fluid Interaction Analysis including Free and Moving Boundary Reviewed
Shigenobu OKAZAWA, Koji NISHIGUCHI, Satoyuki TANAKA
Transactions of the Japan Society for Computational Engineering and Science Vol. 2014 page: 20140011-20140011 (J-STAGE) 2014
More details
Language:Japanese Publishing type:Research paper (scientific journal)
Koji Nishiguchi, Kazuhisa Maeda, Shigenobu Okazawa, Satoyuki Tanaka
Transactions of the Japan Society for Computational Engineering and Science Vol. 2013 page: 20130020-20130020 (J-STAGE) 2013
More details
Language:English Publishing type:Research paper (scientific journal)
This paper presents a temperature-dependent visco-hyperelastic analysis scheme for pressure-sensitive adhesive with an Eulerian finite element method. All the basic equations are numerically solved in the Eulerian framework because it allows arbitrarily large deformations. Visco-hyperelasticity is formulated using Simo's finite-strain viscoelastic model, where hyperelasticity is modeled as a strain energy function based on Yamashita-Kawabata model. The left Cauchy-Green deformation tensor is temporally updated from the Eulerian velocity field without material points. Temperature-dependence is described with the time-temperature superposition principle of Williams, Landel, and Ferry. To validate the proposed approach, we simulate uniaxial tension tests under different tensile speed and temperature conditions. © 2013 by the Japan Society for Computational Engineering and Science.
Koji NISHIGUCHI, Kazuhisa MAEDA, Shigenobu OKAZAWA, Satoyuki TANAKA
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A Vol. 78 ( 788 ) page: 375-389 (WEB ONLY) 2012
More details
Language:Japanese Publishing type:Research paper (scientific journal)
Large Deformation Simulation of Pressure Sensitive Adhesives : Part II : Constitutive Equation for Pressure Sensitive Adhesive Reviewed
MAEDA Kazuhisa, OKAZAWA Shigenobu, NISHIGUCHI Koji
Journal of the Adhesion Society of Japan Vol. 46 ( 10 ) page: 366 - 371 2010.10
More details
Language:Japanese Publishing type:Research paper (scientific journal) Publisher:日本接着学会
Large Deformation Simulation of Pressure Sensitive Adhesives, Part I : Viscoelastic Analysis by Eulerian Solution Reviewed
OKAZAWA Shigenobu, MAEDA Kazuhisa, NISHIGUCHI Koji, NAKAO Kenji
Journal of The Adhesion Society of Japan Vol. 46 ( 3 ) page: 85 - 92 2010.3
More details
Language:Japanese Publishing type:Research paper (scientific journal) Publisher:The Adhesion Society of Japan
Eulerian mixture formulation for solid-fluid interaction dynamics Reviewed
Shigenobu Okazawa, Kenji Nakao, Koji Nishiguchi, Satoyuki Tanaka
Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A Vol. 76 ( 772 ) page: 1533 - 1540 2010
More details
Language:Japanese Publishing type:Research paper (scientific journal) Publisher:Japan Society of Mechanical Engineers
This paper describes an Eulerian formulation for solid-fluid interaction dynamics. A computational mesh control can be divided into Lagrangian and Eulerian solutions. Although the Lagrangian and Eulerian solution has been generally adopted for deformation of solid and flow of fluid respectively, the highly distorted Lagrangian mesh cannot retain numerical accuracy for flexible solid material. The present approach establishes one governing equation for both solid and fluid models using mixture theory assuming incompressibility in the full Eulerian framework. Hyperelasticity for solid and Newtonian fluid are employed in the constitutive equations. A discretization of the proposed formulation for solid-fluid interaction dynamics is based on an explicit finite element method. The explicit finite element method reduces computational cost, except that the finite different method instead of the finite element method is used to solve Poisson and advective equations. We test the validity of the established formulation in the two repressentative solid-fluid interaction examples including flexible solid.
西口浩司,岡澤重信( Role: Joint author , 全章の執筆)
丸善出版 2025.1 ( ISBN:978-4-621-31074-8 )
More details
Total pages:140 Responsible for pages:全章 Language:Japanese Book type:Scholarly book
Other Link: https://www.maruzen-publishing.co.jp/item/b306275.html
The Future of Computational Engineering in Designing Innovative Vehicle Body Structures
Shigenobu Okazawa, Koji Nishiguchi( Role: Joint author)
2024.3
More details
Total pages:7 Language:Japanese Book type:Textbook, survey, introduction
We explore the potential of computational engineering to create new functions in vehicle body structures, by addressing some topics such as data compatibility, humanfriendly structures, Eulerian methods, and 3D generative AI. We argue that computational engineering is evolving from a replacement for experiments to a driver of innovation for vehicle body structures, and that it is essential to incorporate data science, such as machine learning and AI, into computational engineering. We also demonstrate some examples of numerical simulations using supercomputers and Eulerian methods, as well as the feasibility study of 3D generative AI that takes into account structural mechanical parameters. We conclude by outlining the research challenges and opportunities for the future of computational engineering for vehicle body structures.
西口浩司( Role: Sole author)
日本計算工学会 2023.1
More details
Total pages:1 Language:Japanese Book type:Textbook, survey, introduction
特集 オイラー記述による固体 / 構造解析 「超並列計算に適したオイラー型構造 - 流体統一解法」
西口浩司( Role: Sole author)
日本計算工学会 2023.1
More details
Total pages:6 Language:Japanese Book type:Textbook, survey, introduction
大規模スパコンが拓く次世代のものづくり
坪倉誠, 大西慶治, 西口浩司, 李崇鋼, ラフールバレ, 王威翔( Role: Joint author)
シミュレーション,Vol.38,No.2 2019.6
More details
Language:Japanese
学術講演会報告:8th Japan-Korea Workshop on Computational Mechanics (JSCES-COSEIK Joint Workshop) 参加報告
西口 浩司( Role: Sole author)
計算工学, Vol.23, No.3, pp.3789 2018
More details
Language:Japanese
学術講演会報告:WCCM2012報告記
浅井光輝, 西口浩司, 橋本学( Role: Joint author)
計算工学, Vo.17, No.4, pp.2862-2863 2012
More details
Language:Japanese
Intelligent Control and Computer Engineering
Koji Nishiguchi( Role: Contributor , pp.259-270)
Springer 2011.2 ( ISBN:9789400702851 )
More details
Language:English Book type:Scholarly book
Conference on Advanced Topics and Auto Tuning in High-Performance Scientific Computing Invited International conference
Koji Nishiguchi
2025 Conference on Advanced Topics and Auto Tuning in High-Performance Scientific Computing 2025.3.22
More details
Event date: 2025.3
Language:English Presentation type:Oral presentation (invited, special)
Country:Taiwan, Province of China
オイラー型構造流体連成解法とその産業応用 Invited
西口浩司
日本建築学会「シェル・空間構造」セミナー2024:連成問題とその周辺 2025.3.5
More details
Event date: 2025.3
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:東京 Country:Japan
3D生成AIによる構造設計の現在と未来 Invited
西口浩司
産業競争力懇談会 2025.1.24
More details
Event date: 2025.1
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:東京 Country:Japan
3D生成AIによる構造設計の現在と未来 Invited
西口浩司
第45回関東CAE懇話会「対面で語ろう発想とCAE~設計の概念をどう変えてしまうのか~」 2024.12.2
More details
Event date: 2024.12
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:東京 Country:Japan
超多ケース弾塑性シミュレーションによる3D生成AIの訓練と精度検証 Invited
西口浩司
第5回 スーパーコンピュータ「不老」ユーザ会 2024.10.2
More details
Event date: 2024.10
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:名古屋大学 Country:Japan
スーパーコンピュータ「富岳」を用いた構造力学解析に基づく3D 生成AI Invited
西口浩司
精密工学会画像応用技術専門委員会 2024.9.20
More details
Event date: 2024.9
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:オンライン Country:Japan
3D deep generative AI for nonlinear structural dynamics Invited International conference
Koji Nishiguchi, Issei Toida, Naoya Chiba, Yuji Wada, Hiroya Hoshiba, Junji Kato
International Workshops on Advances in Computational Mechanics (IWACOM) 2024.9.18
More details
Event date: 2024.9
Language:English Presentation type:Oral presentation (invited, special)
Country:Japan
構造設計のための3D生成AI:現在の取り組みと将来の展望 Invited
西口浩司
第55回産応協セミナー LLMの科学技術への応用と展望 2024.9.12
More details
Event date: 2024.9
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:オンライン Country:Japan
生成AIで拓くものづくりの民主化と自動化 Invited
西口浩司
サイエンティフィックシステム研究会HPCフォーラム2024 2024.8.6
More details
Event date: 2024.8
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:東京 Country:Japan
構造設計のための3D生成AIの現在と未来 Invited
西口浩司
ADVENTURECluster ユーザー会2024 2024.7.4
More details
Event date: 2024.7
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:東京 Country:Japan
3D generative AI engineering for nonlinear structural design Invited International conference
Koji Nishiguchi
The International Post-Exascale (InPEx) workshop 2024 2024.6.17
More details
Event date: 2024.6
Language:English Presentation type:Oral presentation (invited, special)
Country:Spain
「富岳」を用いた超多ケース計算に基づく3次元形状生成AI構築の試み:ギガキャスト構造の最適設計に向けて Invited
西口浩司
第7回CAEワークショップ 2024.3.8
More details
Event date: 2024.3
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:一般財団法人 高度情報科学技術研究機構(RIST) Country:Japan
Other Link: https://www.hpci-office.jp/events/symposia/ws_cae_240308
ギガキャスト構造の最適設計に向けた3D深層生成モデル構築の試み Invited
西口浩司
第4回「富岳」高性能シミュレーション技術交流会 2024.2.8 東京大学生産技術研究所 革新的シミュレーション研究センター
More details
Event date: 2024.2
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:東京大学生産技術研究所大会議室、および、Web 会議(WebEX Webinars) Country:Japan
A Scalable Eulerian Method for Unified Structure-Fluid Simulation and Its 3D Deep Generative AI based on Capacity Computing Invited International conference
Koji Nishiguchi
The International Conference on High Performance Computing in Asia-Pacific Region (HPC Asia 2024): Workshop “Multi-scale, Multi-physics and Coupled Problems on highly parallel systems (MMCP)” 2024.1.25 Information Processing Society of Japan
More details
Event date: 2024.1
Language:English Presentation type:Oral presentation (invited, special)
Venue:Nagoya Country:Japan
Other Link: https://sighpc.ipsj.or.jp/HPCAsia2024/
スーパーコンピュータ「富岳」を用いた3次元形状生成AI構築 Invited
Koji Nishiguchi
計算工学×AIセミナー 2024.1.11 中央大学AI・データサイエンスセンター
More details
Event date: 2024.1
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:Tokyo Country:Japan
Eulerian Finite Volume Method for Capability and Capacity Computing of Structure Dynamics with Supercomputer Fugaku Invited International conference
Koji Nishiguchi
6th German-Japanese Workshop on Computational Mechanics 2023.12.4 RWTH Aachen University
More details
Event date: 2023.12
Language:English Presentation type:Oral presentation (invited, special)
Venue:Aachen Country:Germany
Other Link: https://www.gacm.de/gacmjsces2023/organisation
オイラー型固体解析の基礎とその産業応用 Invited
西口浩司
第52回ゴムの力学研究分科会 2023.11.30 一般社団法人日本ゴム協会
More details
Event date: 2023.11
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:東部ビル1階およびオンライン
ギガキャスト構造の最適設計に向けた3次元形状生成AI構築の試み Invited
Koji Nishiguchi
2023.11.27
More details
Event date: 2023.11
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:Online Country:Japan
Other Link: https://www.isij.or.jp/event/event2023/20231127.html
3次元形状生成AIの産業応用に向けて Invited
西口浩司
「生成 AI・大規模言語モデルと CAE」 セミナー 2023.9.22 アドバンスソフト株式会社
More details
Event date: 2023.9
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:オンライン Country:Japan
Other Link: https://www.advancesoft.jp/seminar/15463/
次世代自動車構造設計のための3次元形状生成AI構築の試み Invited
西口浩司
第4回スーパーコンピュータ「不老」 ユーザ会 2023.9.6 名古屋大学情報基盤センター
More details
Event date: 2023.9
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:名古屋市 Country:Japan
Other Link: https://icts.nagoya-u.ac.jp/ja/sc/news/event/2023-09-06-user2.html
オイラー型固体解析の基礎とその産業応用 Invited
西口浩司
第41期非線形CAE勉強会 2022.11.26 非線形CAE協会
More details
Event date: 2022.11
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:オンライン Country:Japan
豪雨災害に関する降雨・洪水の複合的統一解法の展開 Invited
西口浩司
「富岳」成果創出加速プログラム:「富岳」が拓くSociety 5.0時代のスマートデザイン第1回ワークショップ 2022.9.30 理化学研究所
More details
Event date: 2022.9
Language:Japanese Presentation type:Oral presentation (invited, special)
Country:Japan
スーパーコンピュータ「富岳」によるデジタルものづくりの近未来 Invited International conference
西口浩司
孫正義育英財団講演会 2022.9.3 孫正義育英財団
More details
Event date: 2022.9
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:オンライン Country:Japan
粘弾性/弾塑性解析の基礎と超並列計算への応用 Invited
西口浩司
第40期非線形CAE勉強会 2022.6.11 非線形CAE協会
More details
Event date: 2022.6
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:オンライン Country:Japan
スーパーコンピュータ「富岳」に適したオイラー型構造-流体統一解析 Invited
西口浩司
土木学会 応用力学委員会 中部地区応用力学フォーラム スーパーコンピュータ「富岳」が拓く応用力学の新展開 2022.2.22 土木学会 応用力学委員会
More details
Event date: 2022.2
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:オンライン
Application and Verification of Variable Density Interpolation in Dynamic Topology Optimization
2024.10.26 機械学会
More details
Event date: 2024.10
Language:English Presentation type:Oral presentation (general)
Country:Japan
劉 光煒, 干場 大也, 西口 浩司, 加藤 準治
第 37 回計算力学講演会 2024.10.18
More details
Event date: 2024.10
Language:Japanese Presentation type:Oral presentation (general)
Venue:仙台 Country:Japan
粘弾性複合材料を想定したマルチスケールトポロジー最適化の検討
松尾 麟、干場 大也、西口 浩司、加藤 準治
令和6年度土木学会全国大会第79回年次学術講演会 2024.9.6
More details
Event date: 2024.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:仙台 Country:Japan
尾嵜 悠利、西口 浩司、竹内 秀輔、杉山 裕文、岡澤 重信、干場 大也、加藤 準治
令和6年度土木学会全国大会第79回年次学術講演会 2024.9.6
More details
Event date: 2024.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:仙台 Country:Japan
奈良 峻輔、干場 大也、西口 浩司、加藤 準治
令和6年度土木学会全国大会第79回年次学術講演会 2024.9.6
More details
Event date: 2024.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:仙台 Country:Japan
仲谷 幸一郎、 西口 浩司、竹内 秀輔、杉山 裕文、 岡澤 重信、干場 大也、 加藤 準治
令和6年度土木学会全国大会第79回年次学術講演会 2024.9.6
More details
Event date: 2024.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:仙台 Country:Japan
Micro-scale topology optimization for thermal-fluid problems using FTT-based homogenization method International conference
Keisuke Takaara, Hiroya Hoshiba, Koji Nishiguchi, Junji Kato
the 16th World Congress on Computational Mechanics and 6th Pan American Congress on Computational Mechanics 2024.7.21 IACM
More details
Event date: 2024.7
Language:English Presentation type:Oral presentation (general)
Country:Canada
W242093
Large-scale unsteady flow topology optimization with hierarchical Cartesian mesh method and its parallel performance evaluation International conference
Ryohei Katsumata*, Koji Nishiguchi, Hiroya Hoshiba, Junji Kato
the 16th World Congress on Computational Mechanics and 5th Pan American Congress on Computational Mechanics 2024.7.21 IACM
More details
Event date: 2024.7
Language:English Presentation type:Oral presentation (general)
Country:Canada
W241577
4D generative AI based on DeepSDF incorporating structural dynamics International conference
Koji Nishiguchi, Issei Toida, Naoya Chiba, Yuji Wada, Rio Yokota, Hiroya Hoshiba, Junji Kato
the 16th World Congress on Computational Mechanics and 4th Pan American Congress on Computational Mechanics 2024.7.21 IACM
More details
Event date: 2024.7
Language:English Presentation type:Oral presentation (general)
Country:Canada
W242150
仲谷 幸一郎、西口 浩司、竹内 秀輔、杉山 裕文、岡澤 重信、干場 大也、加藤 準治
第29回計算工学講演会 2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:神戸 Country:Japan
下負荷面モデルを応用したトポロジー最適化の材料パラメータに関する検討
奈良 峻輔、干場 大也、西口 浩司、加藤 準治
第29回計算工学講演会 2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:神戸 Country:Japan
FFT-based均質化法に基づくミクロスケールトポロジー最適化の熱・流体問題への適用
高荒 圭佑、干場 大也、西口 浩司、加藤 準治
第29回計算工学講演会 2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:神戸 Country:Japan
尾嵜 悠利、西口 浩司、竹内 秀輔、杉山 裕文、岡澤 重信、干場 大也、加藤 準治
第29回計算工学講演会 2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:神戸 Country:Japan
階層型直交メッシュ法による非定常流トポロジー最適化とその並列性能検証
勝又 稜平、西口 浩司、干場 大也、加藤 準治
第29回計算工学講演会 2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:神戸 Country:Japan
構造力学を考慮したDeepSDFに基づく3次元形状生成モデル
戸井田 一聖、千葉 直也、西口 浩司、和田 有司、横田 理央、干場 大也、加藤 準治
第29回計算工学講演会 2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:神戸 Country:Japan
板金製造制約下におけるインストルメントパネルビームの高解像度トポロジー最適化
和田 有司、樫山 武士、長坂 圭、西口 浩司、岡澤 重信、坪倉 誠
第29回計算工学講演会 2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:神戸 Country:Japan
ビルディング・キューブ法を用いたオイラー型有限体積法による超並列弾塑性解析
竹内 秀輔、西口 浩司、米原 圭一、小島 茂樹、川原 康照、杉山 裕文、岡澤 重信、干場 大也、加藤 準治
第29回計算工学講演会 2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:神戸 Country:Japan
塑性散逸エネルギー最大化を目的とした塑性ひずみ制約付きトポロジー最適化
干場 大也、藤原 睦樹、西口 浩司、加藤 準治
第29回計算工学講演会 2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:神戸 Country:Japan
超弾性体ミクロ構造のカーブフィッティングトポロジー最適化とその安定化
島田 知明、干場 大也、奥田 裕也、西口 浩司、加藤 準治
第29回計算工学講演会 2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:神戸 Country:Japan
粘弾性複合材料を想定したマルチスケールトポロジー最適化の感度解析手法に関する検討
松尾 麟、干場 大也、西口 浩司、加藤 準治
第29回計算工学講演会 2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:神戸 Country:Japan
Fundamental study of two-body topology optimization system based on shock absorbing problem
2024.6.10
More details
Event date: 2024.6
Language:Japanese Presentation type:Oral presentation (general)
Country:Japan
B-03-06
劉 光煒、干場 大也、西口 浩司、加藤 準治
第27回応用力学シンポジウム 2024.5.25
More details
Event date: 2024.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:岡山 Country:Japan
森部 天仁、干場 大也、西口 浩司、加藤 準治
第27回応用力学シンポジウム 2024.5.25
More details
Event date: 2024.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:岡山 Country:Japan
せん断剛性に着目したラティス構造配置の最適設計手法についての基礎的検討
今西 健太、干場 大也、小倉 大季、西口 浩司、加藤 準治
第27回応用力学シンポジウム 2024.5.25
More details
Event date: 2024.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:岡山 Country:Japan
連成型マルチスケール解析に基づく弾塑性材料からなるミクロ構造のトポロジー最適化
松井 聖圭、干場 大也、西口 浩司、加藤 準治
第27回応用力学シンポジウム 2024.5.25
More details
Event date: 2024.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:岡山 Country:Japan
XU XINLIN、干場 大也、西口 浩司、加藤 準治
第27回応用力学シンポジウム 2024.5.25
More details
Event date: 2024.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:岡山 Country:Japan
マーカー粒子を用いたオイラー型セル中心有限体積法による地盤の大変形解析
近藤 景斗、西口 浩司、豊田 智大、勝又 稜平、干場 大也、野田 利弘、加藤 準治
第27回応用力学シンポジウム 2024.5.25
More details
Event date: 2024.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:岡山 Country:Japan
Optimal Design of Lattice Structures in Composites for Maximization of Shear Stiffness International conference
Kenta Imanishi,Hiroya Hoshiba, Hiroki Ogura, Koji Nishiguchi , Junji Kato
the Asian Congress of Structural and Multidisciplinary Optimization 2024 (ACSMO 2026) 2024.5.22
More details
Event date: 2024.5
Language:English Presentation type:Oral presentation (general)
Venue: Zhengzhou Country:China
E20439
Multi-material Topology Optimization Based on Viscoelastic Dynamic Structural Response
Junji Kato,Takumi Sugiura, Norihiko Kaga, Kotaro Hayakawa, Hiroshi Kadowaki, Hiroya Hoshiba, Koji Nishiguchi
the Asian Congress of Structural and Multidisciplinary Optimization 2024 (ACSMO 2024) 2024.5.22
More details
Event date: 2024.5
Language:English Presentation type:Oral presentation (general)
Venue: Zhengzhou Country:China
B30431
Other Link: https://www.acsmo2024.cn/index.asp
Fundamental Study on Curve-fitting Topology Optimization of Hyperelastic Microstructures Considering Numerical Stabilization International conference
Tomoaki Shimada,Yuya Okuda, Daiki Watanabe, Hiroya Hoshiba, Koji Nishiguchi, Junji Kato
the Asian Congress of Structural and Multidisciplinary Optimization 2024 (ACSMO 2024) 2024.5.22
More details
Event date: 2024.5
Language:English Presentation type:Oral presentation (general)
Venue: Zhengzhou Country:China
B30352
Topology Optimization to Maximize Nonlinear Buckling Load Factor with Stress and Stiffness Constraints International conference
Keisuke Imoto, Hiroya Hoshiba, Hisao Uozumi, Koji Nishiguchi, Junji Kato
the Asian Congress of Structural and Multidisciplinary Optimization 2024 (ACSMO 2025) 2024.5.22
More details
Event date: 2024.5
Language:English Presentation type:Oral presentation (general)
Venue: Zhengzhou Country:China
B40348
Eulerian elastoplastic simulation of vehicle structures by building-cube method on supercomputer Fugaku International conference
Koji Nishiguchi, Shusuke Takeuchi, Hirofumi Sugiyama, Shigenobu Okazawa, Tadasuke Katsuhara, Keiichi Yonehara, Shigeki Kojima, Kosho Kawahara, Hiroya Hoshiba, Junji Kato
The International Conference on High Performance Computing in Asia-Pacific Region (HPC Asia 2024) 2024.1.27 Information Processing Society of Japan
More details
Event date: 2024.1
Language:English Presentation type:Oral presentation (general)
Venue:Nagoya Country:Japan
Other Link: https://dl.acm.org/doi/10.1145/3635035.3635038
Building-cube法を用いた非定常流のトポロジー最適化とその並列性能評価
勝又 稜平,西口 浩司,干場 大也,加藤 準治
第37回数値流体力学シンポジウム 2023.12.17 日本流体力学会
More details
Event date: 2023.12
Language:Japanese Presentation type:Oral presentation (general)
Venue:名古屋市
No.3409-12-01
Reference map法による陰的オイラー型流体-構造連成解法
近藤 景斗,西口 浩司,干場 大也,加藤 準治
令和5年度土木学会全国大会 第78回年次学術講演会 2023.9.14 土木学会
More details
Event date: 2023.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:広島
No.CS5-04
負のポアソン比を有するメタマテリアルトポロジー最適化の初期値依存性に関する基礎的研究
島田 知明,干場 大也,奥田 裕也,西口 浩司,加藤 準治
令和5年度土木学会全国大会 第78回年次学術講演会 2023.9.14 土木学会
More details
Event date: 2023.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:広島
No.CS5-20
金属材料の降伏強度および有限変形座屈を考慮したトポロジー最適化
井本 桂輔,干場 大也,西口 浩司,魚住 久雄,加藤 準治
令和5年度土木学会全国大会 第78回年次学術講演会 2023.9.14 土木学会
More details
Event date: 2023.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:広島
No.CS5-16
オイラー型解法による多ケース弾塑性構造解析に基づく深層学習モデルの構築
戸井田 一聖,西口 浩司,干場 大也,加藤 準治
令和5年度土木学会全国大会 第78回年次学術講演会 2023.9.14 土木学会
More details
Event date: 2023.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:広島
No.CS5-09
Topology Optimization of Elasto-plastic Microstructure Using FFT-based Homogenization International conference
Masayoshi Matsui, Hiroya Hoshiba, Koji Nishiguchi, Hiroki Ogura, Junji Kato
17th Conference on Computational Plasticity 2023.9.6 International Association for Computational Mechanics (IACM), European Community on Computational Methods in Applied Sciences (ECCOMAS)
More details
Event date: 2023.9
Language:English Presentation type:Oral presentation (general)
Venue:Barcelona Country:Spain
Topology Optimization Method for Elastoplastic Multimaterial Models to Improve Toughness International conference
Mutsuki Fujiwara, Hiroya Hoshiba, Koji Nishiguchi, Junji Kato
17th Conference on Computational Plasticity 2023.9.6 International Association for Computational Mechanics (IACM), European Community on Computational Methods in Applied Sciences (ECCOMAS)
More details
Event date: 2023.9
Language:English Presentation type:Oral presentation (general)
Venue:Barcelona Country:Spain
Deep nural network modeling based on capacity computing of Eulerian elasto-plastic simulation International conference
Issei Toida, Shoki Mori, Koji Nishiguchi, Tokimasa Shimada, Makoto Tsubokura, Hiroya Hoshiba and Junji Kato
The 42nd JSST Annual International Conference on Simulation Technology 2023.8.30 Japan Society for Simulation and Technology
More details
Event date: 2023.8
Language:English Presentation type:Oral presentation (general)
Venue:Niigata Country:Japan
Massively Parallel Topology Optimization of Transient Flow Using Building-Cube Method International conference
Ryohei Katsumata, Koji Nishiguchi, Hiroya Hoshiba, Junji Kato
The 42nd JSST Annual International Conference on Simulation Technology 2023.8.30 Japan Society for Simulation and Technology
More details
Event date: 2023.8
Language:English Presentation type:Oral presentation (general)
Venue:Niigata Country:Japan
Large-Scale Multi-Phase Flow Simulation With Building-Cube Method International conference
Masashi Morishita, Koji Nishiguchi, Hiroya Hoshiba, Junji Kato
17th U. S. National Congress on Computational Mechanics 2023.7.23 U.S. Association for Computational Mechanics
More details
Event date: 2023.7
Language:English Presentation type:Oral presentation (general)
Venue:Albuquerque Country:United States
Study on Relaxation Scheme for Stress Singularity Problem in Multi-material Topology Optimization International conference
Daiki Watanabe, Hiroya Hoshiba, Koji Nishiguchi, Junji Kato
17th U. S. National Congress on Computational Mechanics 2023.7.23 U.S. Association for Computational Mechanics
More details
Event date: 2023.7
Language:English Presentation type:Oral presentation (general)
Venue:Albuquerque Country:United States
A Novel Compressible Structure Analysis Method Based on an Eulerian Finite Volume Method With Marker Particles International conference
Tokimasa Shimada , Koji Nishiguchi, Shigenobu Okazawa, Makoto Tsubokura
17th U. S. National Congress on Computational Mechanics 2023.7.23 U.S. Association for Computational Mechanics
More details
Event date: 2023.7
Language:English Presentation type:Oral presentation (general)
Venue:Albuquerque Country:United States
Large-scale elasto-plastic simulation of vehicle structure with Eulerian finite volume method International conference
Shusuke Takeuchi, Koji Nishiguchi, Hiroya Hoshiba, Junji Kato
17th U. S. National Congress on Computational Mechanics 2023.7.23 U.S. Association for Computational Mechanics
More details
Event date: 2023.7
Language:English Presentation type:Oral presentation (general)
Venue:Albuquerque Country:United States
Optimization of Continuous Fiber Explicit Layout for 3D-printing FRP based on Level Set Method International conference
Takahito Moribe, Hiroya Hoshiba, Koji Nishiguchi, Junji Kato
The 15th World Congress of STRUCTURAL AND MULTIDISCIPLINARY OPTIMISATION 2023.6.7 International Society for Structural and Multidisciplinary Optimization
More details
Event date: 2023.6
Language:English Presentation type:Oral presentation (general)
Venue:Cork Country:Ireland
Multi-material Topology Optimization Considering Dynamic Viscoelastic Properties International conference
Takumi Sugiura, Hiroya Hoshiba, Koji Nishiguchi, Norihiko Kaga, Kotaro Hayakawa, Hiroshi Kadowaki, Junji Kato
"The 15th World Congress of STRUCTURAL AND MULTIDISCIPLINARY OPTIMISATION" 2023.6.6 International Society for Structural and Multidisciplinary Optimization
More details
Event date: 2023.6
Language:English Presentation type:Oral presentation (general)
Venue:Cork Country:Ireland
Topology optimization for the design of temperature rise reduction structures under unsteady-state thermal-fluid field International conference
Keisuke Takaara, Hiroya Hoshiba, Shinsuke Takase, Koji Nishiguchi, Junji Kato
The 15th World Congress of STRUCTURAL AND MULTIDISCIPLINARY OPTIMISATION 2023.6.6 International Society for Structural and Multidisciplinary Optimization
More details
Event date: 2023.6
Language:English Presentation type:Oral presentation (general)
Venue:Cork Country:Ireland
動的粘弾性特性を考慮したマルチマテリアルトポロジー最適化
杉浦 拓実,干場 大也,西口 浩司,加賀 紀彦,早川 光太郎,門脇 弘,加藤 準治
第28回計算工学講演会 2023.5.31 日本計算工学会
More details
Event date: 2023.5 - 2023.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:つくば市
No.E-01-02, 5pages
界面不連続性を有する流体-構造連成問題に適した陰的オイラー型有限体積法
西口 浩司,近藤 景斗,嶋田 宗将,干場 大也,加藤 準治
第28回計算工学講演会 2023.5.31 日本計算工学会
More details
Event date: 2023.5 - 2023.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:つくば市
No.C-02-03, 6pages
オイラー型有限体積法による自動車コンポーネント構造の超並列弾塑性解析
竹内 秀輔,西口 浩司,干場 大也,加藤 準治,岡澤 重信
第28回計算工学講演会 2023.5.31 日本計算工学会
More details
Event date: 2023.5 - 2023.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:つくば市
No.C-02-02, 3pages
Building-Cube法に基づく大規模非定常流れのトポロジー最適化
勝又 稜平,西口 浩司,干場 大也,加藤 準治
第28回計算工学講演会 2023.5.31 日本計算工学会
More details
Event date: 2023.5 - 2023.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:つくば市
No.C-02-01, 5pages
CUBEフレームワークを利用したボクセルトポロジー最適化による固有値最大化
和田 有司,嶋田 宗将,西口 浩司,岡澤 重信,坪倉 誠
第28回計算工学講演会 2023.5.31 日本計算工学会
More details
Event date: 2023.5 - 2023.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:つくば市
No.C-01-02, 6pages
温度上昇を抑制する構造設計のための非定常熱・流体トポロジー最適化
高荒 圭佑,干場 大也,高瀬 慎介,西口 浩司,加藤 準治
第28回計算工学講演会 2023.5.31 日本計算工学会
More details
Event date: 2023.5 - 2023.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:つくば市
No.E-02-04, 6pages
マーカー粒子とオイラー型有限体積法を用いた圧縮性構造解析スキームの提案 Invited
嶋田 宗将,西口 浩司,岡澤 重信,坪倉 誠
第28回計算工学講演会 2023.6.1 日本計算工学会
More details
Event date: 2023.5 - 2023.6
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:つくば市
No.E-07-01, 2pages
負のポアソン比を有するメタマテリアルトポロジー最適化の初期値依存性に関する基礎的検討
島田 知明,干場 大也,奥田 裕也,西口 浩司,加藤 準治
第28回計算工学講演会 2023.5.31 日本計算工学会
More details
Event date: 2023.5 - 2023.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:つくば市
No.E-03-04, 6pages
Reference map法を用いた陰的オイラー型流体-構造連成解析
近藤 景斗,西口 浩司,干場 大也,加藤 準治
第26回応用力学シンポジウム 2023.5.28 土木学会 応用力学委員会
More details
Event date: 2023.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:中央大学後楽園キャンパス
No.12007-12-06, 2pages
座屈強度向上を目的とした応力制約付き非線形トポロジー最適化
井本 桂輔,千場 大也,西口 浩司,魚住 久雄,加藤 準治
第26回応用力学シンポジウム 2023.5.28 土木学会 応用力学委員会
More details
Event date: 2023.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:中央大学後楽園キャンパス
No.12007-12-05, 2pages
ビルディング・キューブ法に基づく構造体と混相流の連成解析
森下 将吏,西口 浩司,嶋田 宗将,干場 大也,加藤 準治
第26回応用力学シンポジウム 2023.5.28 土木学会 応用力学委員会
More details
Event date: 2023.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:中央大学後楽園キャンパス
No.22026-31-05, 2pages
不確かな作用荷重を考慮した落橋防止ブラケットのロバストトポロジー最適化
天野 承介,干場 大也,西口 浩司,加藤 準治
第26回応用力学シンポジウム 2023.5.28 土木学会 応用力学委員会
More details
Event date: 2023.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:中央大学後楽園キャンパス
No.22026-31-04, 2pages
FFT均質化手法を用いた周期ミクロ構造の弾塑性トポロジー最適化
松井 聖圭,干場 大也,西口 浩司,小倉 大季,加藤 準治
第26回応用力学シンポジウム 2023.5.28 土木学会 応用力学委員会
More details
Event date: 2023.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:中央大学後楽園キャンパス Country:Japan
No.22001-06-02, 2pages
レベルセット法に基づく 3D-printing FRP における連続繊維の配置の最適化
森部 天仁,干場 大也,西口 浩司,加藤 準治
第26回応用力学シンポジウム 2023.5.28 土木学会 応用力学委員会
More details
Event date: 2023.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:中央大学後楽園キャンパス
No.22007-12-04, 2pages
弾性除荷時における弾塑性トポロジー最適化の解析的感度の精度検証
藤原 睦樹,干場 大也,西口 浩司,加藤 準治
第26回応用力学シンポジウム 2023.5.28 土木学会 応用力学委員会
More details
Event date: 2023.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:中央大学後楽園キャンパス Country:Japan
No.22007-12-03, 2pages
Topology Optimization of Large-Scale Transient Flow Using Building-Cube Method International conference
Ryohei Katsumata, Koji Nishiguchi, Hiroya Hoshiba, Junji Kato
IUTAM Symposium on Ultralarge-scale Topology Optimization 2023.4.25 International Union of Theoretical and Applied Mechanics
More details
Event date: 2023.4
Language:English Presentation type:Oral presentation (general)
Venue:Lyngby Country:Denmark
Session 3: Fluids and Multiphysics
Building-cube 法を用いた非定常・非圧縮性流体の大規模トポロジー最適化
勝又 稜平,西口 浩司,嶋田 宗将,干場 大也,加藤 準治
日本機械学会 最適化シンポジウム2022(OPTIS2022) 2022.11.13 日本機械学会
More details
Event date: 2022.11
Language:Japanese Presentation type:Oral presentation (general)
Venue:名古屋市
非定常熱・流体連成問題のトポロジー最適化
高荒 圭佑,干場 大也,高瀬 慎介,西口 浩司,加藤 準治
日本機械学会 最適化シンポジウム2022(OPTIS2022) 2022.11.13 日本機械学会
More details
Event date: 2022.11
Language:Japanese Presentation type:Oral presentation (general)
Venue:名古屋市
FFT均質化アルゴリズムに基づく弾塑性マルチスケールトポロジー最適化の基礎的検討
松井 聖圭,干場 大也,小倉 大季,西口浩司,加藤 準治
日本機械学会 最適化シンポジウム2022(OPTIS2022) 2022.11.13 日本機械学会
More details
Event date: 2022.11
Language:Japanese Presentation type:Oral presentation (general)
Venue:名古屋市
スーパーコンピュータ「富岳」で実現するデジタル革命〜自動車、介護、防災減災〜 Invited
西口浩司
愛知県立一宮興道高等学校 出張講義 2022.10.20 愛知県立一宮興道高等学校
More details
Event date: 2022.10
Language:Japanese
Venue:愛知県立一宮興道高等学校
Topology optimization for transient thermal fluid problems International conference
K. Takaara, H. Hoshiba, S. Takase, K. Nishiguchi, J. Kato
Meshfree and Novel Finite Element Methods with Applications 2022.9.25 U.S. Association for Computational Mechanics
More details
Event date: 2022.9
Language:English Presentation type:Oral presentation (general)
Venue:Berkeley, California
Stabilized topology optimization considering dynamic finite strain structural response International conference
J. Kato, T. Sugiura, H. Hoshiba, K. Nishiguchi
Meshfree and Novel Finite Element Methods with Applications 2022.9.25 U.S. Association for Computational Mechanics
More details
Event date: 2022.9
Language:English Presentation type:Oral presentation (general)
Venue:Berkeley, California
Large-scale transient flow topology optimization using building-cube method International conference
R. Katsumata, K. Nishiguchi, T. Shimada, H. Hoshiba, J. Kato
Meshfree and Novel Finite Element Methods with Applications 2022.9.25 U.S. Association for Computational Mechanics
More details
Event date: 2022.9
Language:English Presentation type:Oral presentation (general)
Venue:Berkeley, California
Eulerian finite volume formulation for the interaction of visco-hyperelastic structure and airflow International conference
K. Nishiguchi, S. Takeuchi, R. Katsumata, T. Shimada, H. Hoshiba, J. Kato
Meshfree and Novel Finite Element Methods with Applications 2022.9.25 U.S. Association for Computational Mechanics
More details
Event date: 2022.9
Language:English Presentation type:Oral presentation (general)
Venue:Berkeley, California
Unified Eulerian formulation for large-scale combined fluid-solid behavior in biomaterials International coauthorship International conference
T. Shimada, K. Nishiguchi, C. Peco, S. Okazawa, M. Tsubokura
Meshfree and Novel Finite Element Methods with Applications 2022.9.25 U.S. Association for Computational Mechanics
More details
Event date: 2022.9
Language:English Presentation type:Oral presentation (general)
Venue:Berkeley, California
Building-cube法に基づくオイラー型構造-流体統一解法による粘性-超弾性解析
竹内 秀輔,西口 浩司,嶋田 宗将,勝又 稜平,干場 大也,加藤 準治
令和5年度土木学会全国大会第78回年次学術講演会 2022.9.16 土木学会
More details
Event date: 2022.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:京都市
Building-cube 法に基づく気液二相流解析による建築物の浸水評価
森下 将吏,西口 浩司,嶋田 宗将,永野 雄一,伊藤 嘉晃,田村 哲郎
令和5年度土木学会全国大会第78回年次学術講演会 2022.9.16 土木学会
More details
Event date: 2022.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:京都市
SIMP法の拡張による脆性-延性複合構造物のトポロジー最適化
藤原 睦樹,干場 大也,西口 浩司,加藤 準治
令和5年度土木学会全国大会第78回年次学術講演会 2022.9.16 土木学会
More details
Event date: 2022.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:京都市
大変形を考慮した動的トポロジー最適化における安定化手法の検討
杉浦 拓実,干場 大也,西口 浩司,加藤 準治
令和5年度土木学会全国大会第78回年次学術講演会 2022.9.16 土木学会
More details
Event date: 2022.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:京都市
オイラー型解法とスーパーコンピューティング Invited
西口浩司
日本計算工学会 夏季学生講演会 2022.9.6 日本計算工学会
More details
Event date: 2022.9
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:オンライン
Large-scale urban flood simulation with building-cube method International conference
M. Morishita, K. Nishiguchi, T. Shimada, T.Tamura
41st JSST Annual International Conference on Simulation Technology 2022.8.31
More details
Event date: 2022.8 - 2022.9
Language:English Presentation type:Oral presentation (general)
Large-scale computation of transient topology optimization using the building-cube method International conference
R. Katsumata, K. Nishiguchi, T. Shimada, H. Hoshiba, J. Kato
41st JSST Annual International Conference on Simulation Technology 2022.8.31
More details
Event date: 2022.8 - 2022.9
Language:English Presentation type:Oral presentation (general)
Coupled simulation of fluid and visco-hyperelastic solid with Eulerian unified formulation International conference
S. Takeuchi, K. Nishiguchi, T. Shimada, R. Katsumata, H. Hoshiba, J. Kato
41st JSST Annual International Conference on Simulation Technology 2022.8.31
More details
Event date: 2022.8 - 2022.9
Language:English Presentation type:Oral presentation (general)
FFT-based multi-scale topology optimization with high-resolution microstructure International conference
M. Matsui, H. Hoshiba, H. Ogura, K. Nishiguchi, J. Kato
15th World Congress on Computational Mechanics & 8th Asian Pacific Congress on Computational Mechanics 2022.7.31 International Association for Computational Mechanics
More details
Event date: 2022.7 - 2022.8
Language:English Presentation type:Oral presentation (general)
Venue:Online
Topology optimization for unsteady state thermal-fluid problems International conference
K. Takaara, H. Hoshiba, S. Takase, K. Nishiguchi, J. Kato
15th World Congress on Computational Mechanics & 8th Asian Pacific Congress on Computational Mechanics 2022.7.31 International Association for Computational Mechanics
More details
Event date: 2022.7 - 2022.8
Language:English Presentation type:Oral presentation (general)
Venue:Online
A novel method to impose velocity boundary conditions for Eulerian fluid-structure interaction scheme using Lagrangian marker particles International conference
T. Shimada, K. Nishiguchi, R. Bale, S. Okazawa, M. Tsubokura
15th World Congress on Computational Mechanics & 8th Asian Pacific Congress on Computational Mechanics 2022.7.31 International Association for Computational Mechanics
More details
Event date: 2022.7 - 2022.8
Language:English Presentation type:Oral presentation (general)
Venue:Online
Eulerian elastoplastic analysis using Lagrangian particles for resin material International conference
H. Sugiyama, T. Shimada, K. Nishiguchi, M. Tsubokura, S. Okazawa
15th World Congress on Computational Mechanics & 8th Asian Pacific Congress on Computational Mechanics 2022.7.31 International Association for Computational Mechanics
More details
Event date: 2022.7 - 2022.8
Language:English Presentation type:Oral presentation (general)
Venue:Online
Voxel topology optimization of vehicle frame structure subject to multiple loading using building cube method framework International conference
Y. Wada, T. Shimada, K. Nishiguchi, S. Okazawa, M. Tsubokura
15th World Congress on Computational Mechanics & 8th Asian Pacific Congress on Computational Mechanics 2022.7.31 International Association for Computational Mechanics
More details
Event date: 2022.7 - 2022.8
Language:English Presentation type:Oral presentation (general)
Venue:Online
Preliminary study on multi-material dynamic topology optimization based on generalized Maxwell model, International conference
G. Liu, H. Hoshiba, K. Nishiguchi, J. Kato
15th World Congress on Computational Mechanics & 8th Asian Pacific Congress on Computational Mechanics 2022.7.31 International Association for Computational Mechanics
More details
Event date: 2022.7 - 2022.8
Language:English Presentation type:Oral presentation (general)
Venue:Online
Large-scale two-phase flow simulation using building-cube method for urban flooding International conference
K Nishiguchi, M. Morishita, T. Shimada, T. Tamura
15th World Congress on Computational Mechanics & 8th Asian Pacific Congress on Computational Mechanics 2022.7.31 International Association for Computational Mechanics
More details
Event date: 2022.7 - 2022.8
Language:English Presentation type:Oral presentation (general)
Venue:Online
Large-scale topology optimization of unsteady incompressible flow with building-cube method International conference
R. Katsumata, K. Nishiguchi, T. Shimada, H. Hoshiba, J. Kato
15th World Congress on Computational Mechanics & 8th Asian Pacific Congress on Computational Mechanics 2022.7.31 International Association for Computational Mechanics
More details
Event date: 2022.7 - 2022.8
Language:English Presentation type:Oral presentation (general)
Venue:Online
マーカー粒子を用いたオイラー型有限体積法による破断を考慮した弾塑性解析
嶋田 宗将,西口 浩司,岡澤 重信,坪倉 誠
第66回理論応用力学講演会 2022.6.24 日本工学会理論応用力学コンソーシアム
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:Online
非定常熱・流体問題のトポロジー最適化
高荒 圭佑,干場 大也,高瀬 慎介,西口 浩司,加藤 準治
第66回理論応用力学講演会 2022.6.26 日本工学会理論応用力学コンソーシアム
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:Online
Building-cube法を用いた大規模非定常流トポロジー最適化
勝又 稜平,西口 浩司,嶋田 宗将,干場 大也,加藤 準治
第66回理論応用力学講演会 2022.6.26 日本工学会理論応用力学コンソーシアム
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:Online
オイラー型有限体積法による流体と粘性-超弾性体の連成解析
西口 浩司,竹内 秀輔,嶋田 宗将,勝又 稜平,干場 大也,加藤 準治
第66回理論応用力学講演会 2022.6.24 日本工学会理論応用力学コンソーシアム
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:Online
傾斜材料界面モデルを用いたマルチマテリアルトポロジー最適化
渡邉 大貴,干場 大也,西口 浩司,加藤 準治
第27回計算工学講演会 2022.6.1 日本計算工学会
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:秋田市
Building-cube法を用いた大規模浸水解析
西口 浩司,森下 将吏,嶋田 宗将,田村 哲郎
第27回計算工学講演会 2022.6.1 日本計算工学会
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:秋田市
オイラー型弾塑性解析を活用したサロゲートモデルの構築
森 翔暉,嶋田 宗将,西口 浩司,岡澤 重信,坪倉 誠
第27回計算工学講演会 2022.6.1 日本計算工学会
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:秋田市
マーカー粒子を用いたオイラー型構造-流体統一解法による粘性-超弾性解析
竹内 秀輔,西口 浩司,嶋田 宗将,勝又 稜平,干場 大也,加藤 準治
第27回計算工学講演会 2022.6.1 日本計算工学会
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:秋田市
埋め込み境界法を用いたオイラー型流体-構造連成解析手法による剛体運動の解析
嶋田 宗将,西口 浩司,バレ ラフール,岡澤 重信,坪倉 誠
第27回計算工学講演会 2022.6.1 日本計算工学会
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:秋田市
車体構造のトポロジー最適化における板金形成の促進
和田 有司,嶋田 宗将,西口 浩司,岡澤 重信,坪倉 誠
第27回計算工学講演会 2022.6.1 日本計算工学会
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:秋田市
Building-cube法を用いた非定常非圧縮性流れの大規模トポロジー最適化
勝又 稜平,西口 浩司,嶋田 宗将,干場 大也,加藤 準治
第27回計算工学講演会 2022.6.1 日本計算工学会
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:秋田市
密度法に基づく複合材料の高強度・高靭性トポロジー最適化
干場 大也,藤原 睦樹,西口 浩司,加藤 準治
第27回計算工学講演会 2022.6.1 日本計算工学会
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:秋田市
動的大変形トポロジー最適化における安定化手法の検討
杉浦 拓実,干場 大也,西口 浩司,加藤 準治
第27回計算工学講演会 2022.6.1 日本計算工学会
More details
Event date: 2022.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:秋田市
An Extended SIMP Method for Topology Optimization of Brittle-ductile Composite Structures
2022.5.28
More details
Event date: 2022.5
Language:Japanese Presentation type:Oral presentation (general)
密度法による非定常熱・流体問題のトポロジー最適化
高荒 圭佑,干場 大也,高瀬 慎介,西口 浩司,加藤 準治
第25回応用力学シンポジウム 2022.5.28 土木学会 応用力学委員会
More details
Event date: 2022.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:鹿児島
Building-cube法に基づく有限体積法による粘性-超弾性解析
西口 浩司,竹内 秀輔,嶋田 宗将,勝又 稜平,干場 大也,加藤 準治
第25回応用力学シンポジウム 2022.5.28 土木学会 応用力学委員会
More details
Event date: 2022.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:k鹿児島
Building-cube 法に基づく有限体積法による気液二相流解析
森下 将吏,西口 浩司,嶋田 宗将,田村 哲郎
第25回応用力学シンポジウム 2022.5.28 土木学会 応用力学委員会
More details
Event date: 2022.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:鹿児島
Topology optimization for time dependent thermal-fluid problems International conference
K. Takaara, S. Takase, H. Hoshiba, K. Nishiguchi, J. Kato
Asian Congress of Structural and Multidisciplinary Optimization 2022 2022.5.22 Asian Society for Structural and Multidisciplinary Optimization
More details
Event date: 2022.5
Language:English Presentation type:Oral presentation (general)
Venue:Matsue
Multi-material topology optimization considering mutually exchangeable graded interface International conference
D. Watanabe, H. Hoshiba, K. Nishiguchi, J. Kato
Asian Congress of Structural and Multidisciplinary Optimization 2022 2022.5.22 Asian Society for Structural and Multidisciplinary Optimization
More details
Event date: 2022.5
Language:English Presentation type:Oral presentation (general)
Venue:Matsue
Multi-material dynamic optimal design based on generalized Maxwell model International conference
G. Liu, H. Hoshiba, K. Nishiguchi, J. Kato
Asian Congress of Structural and Multidisciplinary Optimization 2022 2022.5.22 Asian Society for Structural and Multidisciplinary Optimization
More details
Event date: 2022.5
Language:English Presentation type:Oral presentation (general)
Venue:Matsue
Large-scale computation of unsteady topology optimization using the building-cube method International conference
R. Katsumata, K. Nishiguchi, T. Shimada, H. Hoshiba, J. Kato
Asian Congress of Structural and Multidisciplinary Optimization 2022 2022.5.22 Asian Society for Structural and Multidisciplinary Optimization
More details
Event date: 2022.5
Language:English Presentation type:Oral presentation (general)
Venue:Matsue
オイラー型構造解析と自動車CAE への展開 Invited
西口浩司,岡澤重信
第2 回「富岳」高性能シミュレーション技術交流会 2022.1.21
More details
Event date: 2022.1
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:オンライン Country:Japan
洪水時の建物室内への浸水評価に関するBCMの適用
西口浩司,森下将吏,永野雄一,伊藤嘉晃,田村哲郎
第35回数値流体力学シンポジウム 2021 日本流体力学会
More details
Event date: 2021.12
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
No. E09-4,4 pages
超並列計算に適したオイラー型構造-流体統一解法とその産業応用 Invited
西口浩司
京都大学学術情報メディアセンターセミナー「超並列計算の地震・工学設計への応用例とAIを利用する計算力学の展望」 2021.12.14 京都大学学術情報メディアセンター
More details
Event date: 2021.12
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:京都大学 Country:Japan
スーパーコンピュータ「富岳」に適した構造-流体統一解法とその産業応用 Invited
西口浩司
自動車技術会 構造強度部門委員会 2021.12.10 自動車技術会 構造強度部門委員会
More details
Event date: 2021.12
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:オンライン Country:Japan
スーパーコンピュータ「富岳」に適したオイラー型構造-流体統一シミュレーション Invited
西口浩司
建設技術のデジタル革新に関する研究会シンポジウム 2021.9.28 建設技術のデジタル革新に関する研究会
More details
Event date: 2021.9
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:オンライン Country:Japan
スーパーコンピュータ「富岳」に適したオイラー型構造-流体統一解法 Invited
西口浩司
日本建築学会 連続体力学の連成問題小委員会 2021.9.24 日本建築学会 連続体力学の連成問題小委員会
More details
Event date: 2021.9
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:オンライン Country:Japan
Eulerian coupling simulation method for dynamics of air and shock-absorbing structure
Ryohei Katsumata, Koji Nishiguchi, Tokimasa Shimada, Hoshiba Hiroya, Junji Kato
International Conference on Simulation Technology 2021
More details
Event date: 2021.9
Language:English Presentation type:Oral presentation (general)
Venue:Online
Semi-implicit Eulerian formulation using marker particles with a reference map for fluid-structure interaction problems International conference
Koji Nishiguchi, Tokimasa Shimada, Hiroya Hoshiba, Junji Kato
16th U.S. National Congress on Computational Mechanics 2021
More details
Event date: 2021.7
Language:English Presentation type:Oral presentation (general)
Venue:Online
Multi-scale topology optimization applying FFT-based homogenization approach International conference
Masayoshi Matsui, Hiroya Hoshiba, Koji Nishiguchi, Junji Kato, Hiroki Ogura
14th World Congress of Structural and Multidisciplinary Optimization 2021
More details
Event date: 2021.6
Language:English Presentation type:Oral presentation (general)
Venue:Online
オイラー型有限体積法に基づくマーカー粒子を用いた弾塑性構造解析
大髙雅史,西口浩司,嶋田宗将,杉山裕文,坪倉誠,岡澤重信
第26回計算工学講演会 2021 日本計算工学会
More details
Event date: 2021.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
リファレンス・マップ法を用いた陰的オイラー型構造-流体連成解析
西口浩司,嶋田宗将,岡澤重信,坪倉誠
第26回計算工学講演会 2021 日本計算工学会
More details
Event date: 2021.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
接着部の静的破壊を考慮したマルチマテリアルトポロジー最適化
渡邉大貴,干場大也,西口浩司,加藤準治
第26回計算工学講演会 2021 日本計算工学会
More details
Event date: 2021.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
トポロジー最適化による複合ゴム構造の動的粘弾性制御
干場大也,西口浩司,加藤準治
第26回計算工学講演会 2021 日本計算工学会
More details
Event date: 2021.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
非定常熱境界条件を考慮したトポロジー最適化の基礎的検討
高荒圭佑,干場大也,西口浩司,加藤準治
第26回計算工学講演会 2021 日本計算工学会
More details
Event date: 2021.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
FFT均質化アルゴリズムに基づくマルチスケールトポロジー最適化の基礎的検討
松井聖圭,干場大也,西口浩司,加藤準治,小倉大季
第26回計算工学講演会 2021 日本計算工学会
More details
Event date: 2021.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
CUBEフレームワークを利用した車体フレームのボクセルトポロジー最適化
和田有司,嶋田宗将,西口浩司,大高雅史,岡澤重信,坪倉誠
第26回計算工学講演会 2021 日本計算工学会
More details
Event date: 2021.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
ラグランジュマーカー粒子を用いた IB法による剛体角柱の振動解析
川口真晴,嶋田宗将,西口浩司,田村 哲郎
第26回計算工学講演会 2021 日本計算工学会
More details
Event date: 2021.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
階層型直交メッシュを用いたオイラー型構造−流体統一解法による骨折予防床の大変形解析
勝又稜平,西口浩司,干場大也,加藤準治,平山洋介
第26回計算工学講演会 2021 日本計算工学会
More details
Event date: 2021.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
埋め込み境界法によるオイラー型構造-流体連成解析手法への速度境界条件の付与
嶋田宗将,西口浩司,バレラフール,岡澤重信,坪倉誠
第26回計算工学講演会 2021 日本計算工学会
More details
Event date: 2021.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
オイラー型有限体積法による骨折予防床の構造-流体連成解析
西口浩司,勝又稜平,嶋田宗将,干場大也,加藤準治,平山洋介
第24回応用力学シンポジウム 2021.5.15 土木学会 応用力学委員会
More details
Event date: 2021.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:オンライン Country:Japan
Topology optimization under structural Lagrangian marker particle method using hierarchical Cartesian mesh International conference
Yuji Wada, Tokimasa Shimada, Koji Nishiguchi, Masafumi Otaka, Shigenobu Okazawa, Makoto Tsubokura
the 3rd International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE2020) 2020
More details
Event date: 2020.12
Language:English Presentation type:Oral presentation (general)
Venue:Online
Eulerian finite volume formulation using hierarchical Cartesian mesh for multi-material vehicle structures International conference
Koji Nishiguchi, Tokimasa Shimada, Masafumi Otaka, Shigenobu Okazawa, Makoto Tsubokura
3rd International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE2020) 2020
More details
Event date: 2020.12
Language:English Presentation type:Oral presentation (general)
Venue:Online
Full Eulerian formulation using Lagrangian marker particles for fluid-structure interaction problem International conference
Tokimasa Shimada, Koji Nishiguchi, Shigenobu Okazawa, Makoto Tsubokura
the 3rd International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE2020) 2020
More details
Event date: 2020.12
Language:English Presentation type:Oral presentation (general)
Venue:Online
Large deformation solid dynamics using Marker particles based on Eulerian formulation International conference
Masafumi Otaka, Koji Nishiguchi, Tokimasa Shimada, Makoto Tsubokura, Hirofumi Sugiyama, Shigenobu Okazawa
the 3rd International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE2020) 2020
More details
Event date: 2020.12
Language:English Presentation type:Oral presentation (general)
Venue:Online
Large Deformation Solid Dynamics Using Marker Particles Based on Eulerian Formulation International conference
Masafumi Otaka, Koji Nishiguchi, Tokimasa Shimada, Makoto Tsubokura, Hirofumi Sugiyama, Shigenobu Okazawa
14th World Congress on Computational Mechanics 2020
More details
Event date: 2020.7
Language:English Presentation type:Oral presentation (general)
Venue:Online
Voxel-Based Fluid-Structure Interaction Method for Nonlinear Biomaterials Involving Large Deformation International coauthorship International conference
Koji Nishiguchi, Tokimasa Shimada, Masafumi Otaka, Christian Peco, Shigenobu Okazawa, Makoto Tsubokura
14th World Congress on Computational Mechanics 2020
More details
Event date: 2020.7
Language:English Presentation type:Oral presentation (general)
Venue:Online
Reference map techniqueによるオイラー型構造解析の高精度化
西口浩司, 嶋田宗将, 大髙雅史, 岡澤重信, 坪倉誠
第25回計算工学講演会論文集 2020 日本計算工学会
More details
Event date: 2020.6
Language:Japanese Presentation type:Oral presentation (general)
Country:Japan
paper No. F-06-03
固定直交メッシュに基づくマーカー粒子を用いた大変形弾塑性解析
大髙雅史, 西口浩司, 嶋田宗将, 坪倉誠, 杉山裕文, 岡澤重信
第25回計算工学講演会 2020 日本計算工学会
More details
Event date: 2020.6
Language:Japanese Presentation type:Oral presentation (general)
paper No. D-07-04
階層直交格子を用いたParticle-in-cell法によるトポロジー最適化
和田有司, 小川時央, 嶋田宗将, 西口浩司, 大高雅史, 岡澤重信, 坪倉誠
第25回計算工学講演会 2020 日本計算工学会
More details
Event date: 2020.6
Language:Japanese Presentation type:Oral presentation (general)
paper No. A-06-01
Reference Map Techniqueを用いたオイラー型流体-構造連成解析
嶋田宗将, 西口浩司, 岡澤重信, 坪倉誠
第25回計算工学講演会 2020 日本計算工学会
More details
Event date: 2020.6
Language:Japanese Presentation type:Oral presentation (general)
Country:Japan
Structural analysis with Eulerian finite volume method using Lagrangian marker particles International conference
Masafumi Otaka, Koji Nishiguchi, Yuji Wada, Rahul Bale, Tokimasa Shimada, Makoto Tsubokura, Hirofumi Sugiyama, Shigenobu Okazawa
the 7th Asia-Pacific Congress on Computational Mechanics(APCOM) 2019
More details
Event date: 2019.12
Language:English Presentation type:Oral presentation (general)
Venue:Taipei
Eulerian Finite Volume Formulation using Lagrangian Marker Particles for Deformable Solid-Fluid Interaction Problems International conference
Koji Nishiguchi, Rahul Bale, Tokimasa Shimada, Masafumi Otaka, Shigenobu Okazawa and Makoto Tsubokura
the 7th Asia-Pacific Congress on Computational Mechanics (APCOM) 2019
More details
Event date: 2019.12
Language:English Presentation type:Oral presentation (general)
Venue:Taipei
流体と超弾性体の連成解析による建築構造物の風応答の推定 -マーカー粒子を用いたオイラー型解析手法の適用-
長尾悠生, 西口浩司, 嶋田宗将, 田村哲郎, 河合英徳
第33回数値流体力学シンポジウム 2019
More details
Event date: 2019.11
Language:Japanese Presentation type:Oral presentation (general)
Venue:日本流体力学会
C07-2, 4 pages
ラグランジュマーカー粒子を用いたオイラー型流体-構造統一連成解法
嶋田宗将,西口浩司,岡澤 重信, 坪倉誠
第33回数値流体力学シンポジウム 2019 日本流体力学会
More details
Event date: 2019.11
Language:Japanese Presentation type:Oral presentation (general)
Venue:北海道大学 札幌キャンパス
E11-4, 10 pages
Eulerian method for large-scale parallel simulation of fluid and structure problems Invited International conference
Koji Nishiguchi
Seminar at graduate school of mechanical engineering, National Chung Hsing University 2019.11.27 Graduate school of mechanical engineering, National Chung Hsing University
More details
Event date: 2019.11
Language:English Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:National Chung Hsing University Country:Taiwan, Province of China
Scalable fixed-mesh method for massively parallel simulations of solid and fluid problems Invited International conference
Koji Nishiguchi
Seminar at Institute of Computational and Data Sciences (ICDS), Penn State University 2019.11.13 Institute of Computational and Data Sciences (ICDS), Pennsylvania State University
More details
Event date: 2019.11
Language:English Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:Pennsylvania State University Country:United States
High performance computing of wind-induced pressures on various domes under real conditions International conference
Tetsuro TAMURA, Yong CAO, Yuki NAGAO, Hidenori KAWAI, Koji NISHIGUCHI, Makoto TSUBOKURA
the IASS Annual Symposium 2019, FORM and FORCE 2019 2019
More details
Event date: 2019.10
Language:English Presentation type:Oral presentation (general)
Venue:Barcelona Country:Spain
Other Link: https://www.ingentaconnect.com/content/iass/piass/2019/00002019/00000003/art00004
Eulerian finite volume formulation using particle-in-cell method for large-scale parallel simulation of complex structures International conference
Koji Nishiguchi, Tokimasa Shimada, Masafumi Otaka, Shigenobu Okazawa, Makoto Tsubokura
4th International Conference on Multi-scale Computational Methods for Solids and Fluids 2019
More details
Event date: 2019.9
Language:English Presentation type:Oral presentation (general)
Venue:Sarajevo Country:Bosnia and Herzegovina
マーカ粒子を用いたオイラー型流体-構造連成解析法の建築構造物への適用
長尾悠生, 西口浩司, 嶋田宗将, 田村哲郎
2019年度日本流体力学会年会 2019 日本流体力学会
More details
Event date: 2019.9
Language:Japanese Presentation type:Oral presentation (general)
Venue:電気通信大学
ラグランジュマーカー粒子を用いたオイラー型有限体積法による圧縮性固体解析
西口浩司, Rahul Bale, 嶋田宗将, 大髙雅史, 杉山裕文, 岡澤 重信, 坪倉誠
第22回応用力学シンポジウム 2019 土木学会 応用力学委員会
More details
Event date: 2019.6
Language:Japanese Presentation type:Oral presentation (general)
Venue:北海道大学 札幌キャンパス
Particle-In-Cell Method using Hierarchical Cartesian Mesh for Deformable Solid-Fluid Interaction Problems International conference
Koji Nishiguchi, Tokimasa Shimada, Rahul Bale, Shigenobu Okazawa, Makoto Tsubokura
VIII International Conference on Coupled Problems in Science and Engineering 2019
More details
Event date: 2019.6
Language:English Presentation type:Oral presentation (general)
Venue:Sitges Country:Spain
階層型直交メッシュに基づくParticle-in-cell法を用いた構造解析の検証
大髙雅史,西口浩司,坪倉誠,杉山裕文,岡澤重信
第24回計算工学講演会 2019 日本計算工学会
More details
Event date: 2019.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:ソニックシティ(大宮)
階層型直交メッシュを用いたParticle-in-cell法による構造解析
西口浩司, 嶋田宗将, 大髙雅史, 岡澤 重信, 坪倉 誠
第24回計算工学講演会 2019 日本計算工学会
More details
Event date: 2019.5
Language:Japanese Presentation type:Oral presentation (general)
Venue:ソニックシティ(大宮)
Implicit Particle-in-cell Formulation for Fluid-Structure Interaction Simulations with Hard Solid International conference
Koji Nishiguchi, Rahul Bale, Shigenobu Okazawa, Makoto Tsubokura
13th World Congress in Computational Mechanics 2018
More details
Event date: 2018.7
Language:English Presentation type:Oral presentation (general)
Venue:New York Country:United States
Strong coupling scheme for thin-shell structure and fluid with implicit particle-in-cell method International conference
Koji Nishiguchi, Rahul Bale, Shigenobu Okazawa, Makoto Tsubokura
6th European Conference on Computational Mechanics (Solids, Structures and Coupled Problems) (ECCM 6) and the 7th European Conference on Computational Fluid Dynamics (ECFD 7) 2018
More details
Event date: 2018.6
Language:English Presentation type:Oral presentation (general)
Venue:Glasgow Country:United Kingdom
Fixed Cartesian mesh approach for large-scale parallel simulation of vehicular structures Invited International conference
Koji Nishiguchi, Rahul Bale, Shigenobu Okazawa, Makoto Tsubokura
8th Japan-Korea Workshop on Computational Mechanics 2018.6.7
More details
Event date: 2018.6
Language:English Presentation type:Oral presentation (invited, special)
Venue:Nagoya Country:Japan
ポスト「京」で目指す自動車構造解析の展開 Invited
西口 浩司
自動車技術会 構造強度部門委員会 2018.4.13 自動車技術会 構造強度部門委員会
More details
Event date: 2018.4
Language:Japanese Presentation type:Oral presentation (invited, special)
Venue:京都工芸繊維大学 Country:Japan
Eulerian method for solid/structure simulation Invited International conference
Koji Nishiguchi, Rahul Bale, Shigenobu Okazawa, Makoto Tsubokura
The joint seminar of YunTech-Kobe University/RIKEN AICS 2018.3.28 National Yunlin University of Science and Technology
More details
Event date: 2018.3
Language:English Presentation type:Oral presentation (invited, special)
Venue:National Yunlin University of Science and Technology Country:Taiwan, Province of China
A fixed Cartesian mesh approach for large-scale parallel simulations of fluid-structure interaction problems International conference
Koji Nishiguchi, Rahul Bale, Shigenobu Okazawa, Makoto Tsubokura
3rd International Conference on Computational Models for Solids and Fluids – ECCOMAS MSF 2017 2017
More details
Event date: 2017.9
Language:English Presentation type:Oral presentation (general)
Venue:Ljubljana Country:Slovenia
A fixed Cartesian mesh method for large-scale parallel simulation of complex vehicular structures International conference
Koji Nishiguchi, Rahul Bale, Shigenobu Okazawa, Makoto Tsubokura
14th U.S. National Congress on Computational Mechanics (USNCCM14) 2017
More details
Event date: 2017.7
Language:English Presentation type:Oral presentation (general)
Venue:Montréal Country:Canada
Development of numerical method for vehicular structure dynamics for large-scale parallel simulations Invited International conference
Koji Nishiguchi, Rahul Bale, Keiji Onishi, Shigenobu Okazawa, Makoto Tsubokura
RIKEN SAKURA symposium 2017 2017.3.29
More details
Event date: 2017.3
Language:English Presentation type:Oral presentation (invited, special)
Venue:Yokohama Country:Japan
Fixed-mesh Eulerian Contact Formulation using X-FEM International conference
Koji Nishiguchi, Shigenobu Okazawa
12 World Congress on Computational Mechanics 2016
More details
Event date: 2016.7
Language:English Presentation type:Oral presentation (general)
Venue:Seoul Country:Korea, Republic of
オイラー型有限要素法による粘着剤の大変形シミュレーションへのアプロ ーチ Invited
西口浩司
日本接着学会 アクリルポリマーの設計と粘接着用途への応用セミナー 2013.8.2 日本接着学会
More details
Event date: 2013.8
Language:Japanese Presentation type:Public lecture, seminar, tutorial, course, or other speech
Venue:名古屋市工業研究所 Country:Japan
Full Eulerian Finite Element Formulation using SUPG Method for Large Deformation Analysis of Pressure-Sensitive Adhesive
Koji Nishiguchi, Kazuhisa Maeda, Shigenobu Okazawa, Satoyuki Tanaka
12th U.S. National Congress on Computational Mechanics 2013
More details
Event date: 2013.7
Language:English Presentation type:Oral presentation (general)
Venue:Raleigh Country:United States
FULL EULERIAN FINITE ELEMENT ANALYSIS OF PRESSURE-SENSITIVE ADHESIVES International conference
Koji Nishiguchi, Kazuhisa Maeda, Shigenobu Okazawa
10th World Congress on Computational Mechanics 2012
More details
Event date: 2012.7
Language:English Presentation type:Oral presentation (general)
Venue:Sao Paulo Country:Brazil
Eulerian Visco-Hyperelastic Analysis for Adhesive International conference
Koji Nishiguchi, Kazuhisa Maeda, Shigenobu Okazawa
11th U.S. National Congress on Computational Mechanics 2011
More details
Event date: 2011.7
Language:English Presentation type:Oral presentation (general)
Venue:Minneapolis Country:United States
Flow Dynamic Analysis of Pressure Sensitive Adhesive International conference
Koji Nishiguchi, Kazuhisa Maeda, Shigenobu Okazawa
16th International Conference on Finite Elements in Flow Problems 2011
More details
Event date: 2011.3
Language:English Presentation type:Oral presentation (general)
Venue:Munich Country:Germany
Heart Behavior Simulation on Voxel Based Fluid-Structure Analysis Interacting with Cardiomyocyte Behavior International conference
Kiyoshi Kumahata, Koji Nishiguchi, Shigenobu Okazawa, Akira Amano, Teruo Matsuzawa
6th World Congress of Biomechanics 2010
More details
Event date: 2010.8
Language:English Presentation type:Oral presentation (general)
Venue:Singapore Country:Singapore
Visco-Rubber Elastic Model for Pressure Sensitive Adhesive International conference
Kazuhisa Maeda, Shigenobu Okazawa, Koji Nishigichi, Takashi Iwamoto
The International MultiConference of Engineers and Computer Scientists 2010 2010
More details
Event date: 2010.3
Language:English
Venue:Hong Kong Country:China
The analysis of large deformation of adhesive International conference
Kazuhisa Maeda, Shigenobu Okazawa, Koji Nishiguchi
10th US National Congress on Computational Mechanics 2009
More details
Event date: 2009.7
Language:English Presentation type:Oral presentation (general)
Venue:Columbus Country:United States
Eulerian and ALE formulations for adhesive International conference
Koji Nishiguchi, Kazuhisa Maeda, Shigenobu Okazawa
10th US National Congress on Computational Mechanics 2009
More details
Event date: 2009.7
Language:English Presentation type:Oral presentation (general)
Venue:Ohio Country:United States
次世代自動車設計のためのコンポーネント構造の超多ケース弾塑性解析と確率的深層生成モデルへの展開
Grant number:hp230296 2023.10 - 2024.9
令和5年度B期「富岳」利用研究課題
More details
Authorship:Principal investigator Grant type:Other
超並列構造解析による3次元点群の確率的深層生成モデル学習の基礎的研究
2023.4 - 2024.3
令和5年度上田記念財団研究助成金
More details
Authorship:Principal investigator Grant type:Competitive
Grant amount:\2000000 ( Direct Cost: \1920600 、 Indirect Cost:\79400 )
次世代自動車設計のためのコンポーネント構造の大変形・破断を伴う弾塑性解析
Grant number:hp220249 2022.10 - 2023.9
令和4年度B期「富岳」利用研究課題
More details
Authorship:Principal investigator Grant type:Other
自動車樹脂構造のオイラー型超並列構造解析
2022.4 - 2023.3
スズキ財団令和3年度科学技術研究助成(若手)
More details
Authorship:Principal investigator Grant type:Competitive
内水氾濫における建築物耐水性評価のための気液二相流の超並列計算法の研究
2021.5 - 2022.5
日比科学技術振興財団 令和3年度研究助成(一般課題)
More details
Authorship:Principal investigator Grant type:Competitive
オイラー型構造解析による自動車構造性能のリアルタイム予測AIの開発
2021.4 - 2024.3
永井科学技術財団 特定課題研究奨励金
More details
Authorship:Principal investigator Grant type:Competitive
Fluid-solid interaction simulation of blood flow-induced endothelial cell deformations in vivo
2019.9 - 2021.3
More details
Authorship:Principal investigator Grant type:Competitive
エクサスケールを見据えた流体・構造双方向連成問題に対する統一的解法の構築
Grant number:19H04124 2019.4 - 2022.3
科学研究費助成事業 基盤研究(B)
坪倉 誠, 岡澤 重信, 西口 浩司, LI CHUNGGANG
More details
Authorship:Coinvestigator(s) Grant type:Competitive
次世代超並列計算機環境を想定して、流体運動と構造変形が双方向連成しあう問題を対象に、両者を統一的に扱う解析手法を構築する。流体・構造統一オイラー方程式を採用し、階層直交格子を適用することで、強連成問題に対して超並列スケーリングし、かつ複雑形状に対応できるアルゴリズムを研究開発する。流体と構造の界面捕捉にはラグランジュ粒子法を採用することで、既存のオイラー構造解析の欠点を回避し、膜やシェル構造への対応を可能とする。提案手法を産業界でみられる複雑形状を有するシェルや膜構造の空力不安定問題に適用することで、次世代デジタルエンジニアリング環境を支援するシミュレーションのフレームワーク構築を目指す。
平成31年度~令和3年度の3年間で、研究課題1)流体・構造統一オイラー解法のフレームワーク構築、2)アルゴリズムの高速化と超並列チューニング、3)シェル構造物流体連成問題に対するMaterial Point Method(MPM法)の確立、4)ものづくり分野での実証解析に段階的に取り組む。1)3)に関しては,マーカー粒子を用いたオイラー型流体・構造統一解法に対してリファレンス・マップ法を新たに定式化し,その精度検証を行った. 2)については,「富岳」を用いて,先ず,単体性能の計測を行った.開発した圧縮性流体アルゴリズムに対して,ベンチマーク問題としてキャビティ計算を行った.1コアメモリグループ(CMG)に対して1MPIプロセスを割り当て,1ノード4CMG(4MPIプロセス)での性能を計測した結果,3.59倍の加速性能を得た.この時,ピーク性能に対して1CMGで7.09%,1ノードで6.38%の性能を得た.並列性能に対しては,1次元方向に領域を拡張した問題に対して,ウィークスケーリングを実施し,1ノードから27,648ノードまで解析を行った.この時,1ノードに対する27,648ノードのスケーリングは91.07%と良好な結果が得られた.これは単体性能,並列性能とも,この研究で提案している階層直交格子に基づくデータ構造とアルゴリズムの有効性を示すものである.尚,計算規模としては最大217億セル,4.5PFLOPSまで対応可能であることも確認できた.4)に対しては,昨年に引き続き,自動車課題としてボンネット付近から発生する狭帯域音(フィードバック音)の直接空力解析を行った.昨年度,「京」(0.2mm解像度,20億セル)で,狭帯域音の発生には成功したが,ピーク音圧等で実験との不一致があった.そこで今年度は0.1mm解像度,110億セルの解析を進め,改善の見通しが立った.
1) 3)マーカー粒子を用いたオイラー型流体・構造統一解法に対してリファレンス・マップ法を新たに定式化し,その精度検証を行った.本研究の数値解析手法では,固体の構成方程式以外は有限体積法により空間方向に離散化され,空間固定の直交メッシュ上で計算される.一方,固体領域はマーカー粒子によって表され,マーカー粒子はリファレンス・マップと呼ばれる固体の初期の位置ベクトルおよび偏差応力テンソルの情報を保持する.本研究では,リファレンス・マップをマーカー粒子からオイラーメッシュに補間し,オイラーメッシュ上で変形勾配テンソルを計算することで,固体のひずみを評価する.構造-流体連成問題で頻繁に参照されるベンチマーク問題で本手法の妥当性と有用性を検証した.エネルギーの時刻歴,固体変形等を参照解と比較した結果,従来法と比較して高精度な数値解が得られていることを確認した.さらに,従来法では数値不安定が生じていた問題,すなわち固体と流体の界面において速度場が不連続な問題も安定的に計算が行えることが確認された.2)については,コストの高い粘性項と対流項について,カーネル部分の1CMGあたりの演算性能及びその上限見積もりを行った。上限見積値の計算は、ソース及びシステムのメモリアクセス量と演算数の比(Byte per Flop)を元に算出した。チューニングの成果により,粘性項のピーク性能比はオリジナル7.03%から13.95%に向上した。見積もり上は、更に2.7%ほどの向上が見込める。対流項については、ソースのメモリアクセス量と演算数の比がシステム値を下回るため、このカーネルはメモリスループットネックではない。従って、性能上限見積もり値を算出することはできないが、ソフトウェアパイプライニングやSIMD化といった演算性能チューニングにより大幅な性能向上が見込める。以上の通り,研究は予定通り進捗している.
1)3)リファレンス・マップ法を用いた構造-流体連成解法は確立できたが,鋼構造などの固体のヤング率が高い問題の場合,固体の応力波による時間増分の制約が厳しくなり,膨大な時間ステップ数を要する.よって今後は,鋼構造などのより実用的問題の解析を可能とするため,固体の応力波による時間増分制約を緩和する必要がある.そこで,陰的時間積分法の導入,およびその時間増分の緩和効果を定量的に検証する予定である.また弾塑性などの変形履歴依存性のある金属材料を取り扱うために,履歴変数の新たな取り扱い方法を検討する.さらに今度のその重要性が増すと考えられる樹脂材料に関する導入を開始する.2)については,スパコン「富岳」を用いて,基本アルゴリズムの高速化と大規模並列化への対応をさらに進める.SIMD並列演算やキャッシュメモリを効率的に活用できるようチューニングすることで,最終的にはスパコン「京」に対してノード性能で100倍以上の加速を目指す.4)については,開発予定のシミュレーションフレームワークの有用性と実用性評価の為に、機械分野および土木・建築分野におけるものづくりでの実問題を対象に、そのFSを行う。実証解析課題として今年度は,建築物と周囲流との連成による建物加振問題に着目する.具体的には,連続体を仮定した柔構造物として角柱を対象に,流れと構造変形が強連成振動を起こす解析を行う.並行して連携機関による風洞実験を実施し,シミュレーション結果の精度検証を行い,手法の妥当性と実用化に向けた課題抽出を行う.
Grant number:20K19815 2020.4 - 2024.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists Grant-in-Aid for Early-Career Scientists
Koji Nishiguchi
More details
Authorship:Principal investigator
Grant amount:\4290000 ( Direct Cost: \3300000 、 Indirect Cost:\990000 )
応力−ひずみ曲線式を出力するためのプログラム及びその装置並びに弾性材料の物性評価方法
西口 浩司, 前田 和久
More details
Applicant:日東電工株式会社
Application no:特願2012-146552 Date applied:2012.6
Announcement no:特開2014-010047 Date announced:2014.1
前田 和久, 岡澤 重信, 西口 浩司
More details
Applicant:日東電工株式会社, 国立大学法人広島大学
Application no:特願2009-109605 Date applied:2009.4
Announcement no:特開2010-256293 Date announced:2010.11
応力−ひずみ曲線式を出力するためのプログラム及びその装置、並びに、弾性材料の物性評価方法
前田 和久, 岡澤 重信, 西口 浩司
More details
Applicant:日東電工株式会社, 国立大学法人広島大学
Application no:特願2009-109605 Date applied:2009.4
Announcement no:特開2010-256293 Date announced:2010.11
Patent/Registration no:特許第4852626号 Date issued:2011.10
Advanced Numerical Analysis
2023
Seminar on Structural Engineering 1C
2023
Seminar on Structural Engineering 1A
2023
Advanced Numerical Analysis
2023
Seminar on Structural Engineering 1D
2023
Seminar on Structural Engineering 1B
2023
Seminar on Structural Engineering 2E
2023
Seminar on Structural Engineering 2C
2023
Seminar on Structural Engineering 2A
2023
Seminar on Structural Engineering 2D
2023
Seminar on Structural Engineering 2B
2023
Foundations of Mechanics II
2023
Advanced Course in Lifecycle Design of Civil Structures
2023
Seminar on Structural Engineering 1C
2023
Seminar on Structural Engineering 1A
2023
Experiments in Materials and Structures II
2023
Experiments in Materials and Structures I
2023
Experimental and Analytical Training in Civil Engineering
2023
Advanced Work in Structural Mechanics
2023
Seminar on Structural Engineering 2D
2023
Seminar on Structural Engineering 2B
2023
Seminar on Structural Engineering 2E
2023
Seminar on Structural Engineering 2C
2023
Seminar on Structural Engineering 2A
2023
Advanced Work in Structural Mechanics
2023
Advanced Course in Lifecycle Design of Civil Structures
2023
Seminar on Structural Engineering 1D
2023
Seminar on Structural Engineering 1B
2023
Seminar on Structural Engineering 1B
2022
Advanced Work in Structural Mechanics
2022
Foundations of Mechanics II
2020
Experiments in Materials and Structures II
2020
Experiments in Materials and Structures I
2020
Experimental and Analytical Training in Civil Engineering
2020
Experiments in Materials and Structures II
2020
Experiments in Materials and Structures I
2020
Experimental and Analytical Training in Civil Engineering
2020
Seminar on Structural Engineering 2A
2020
構造力学特論演習
2020
工学院授業科目 機械宇宙特別講義(2018年1月19日)
(Hokkaido University)
全学共通科目 計算科学が拓く世界(2017年6月7日)
(Kyoto University)
システム情報学研究科授業科目 CFD for industrial applications(2019年5月20日)
(Kobe University)
システム情報学研究科授業科目 CFD for industrial applications(2019年5月17日)
(Kobe University)
システム情報学研究科授業科目 CFD for industrial applications(2018年6月1日)
(Kobe University)
システム情報学研究科授業科目 CFD for industrial applications(2018年5月28日)
(Kobe University)
数値流体力学
(京都大学 大学院工学研究科(2019年11月18日))
研究指導担当(研究テーマ:階層型直交メッシュコードCUBEを用いた流体-薄板構造の統一連成解析の研究),神戸大学 システム情報学研究科 博士課程後期学生,2018年4月1日~現在.
(理化学研究所 計算科学研究センター)
研究指導担当(研究テーマ:階層型直交メッシュコードCUBEを用いた流体-構造-熱の統一連成解析の研究),神戸大学 システム情報学研究科 博士課程前期学生,2018年4月1日~現在.
(理化学研究所 計算科学研究センター)
研究指導担当(研究テーマ:階層型直交メッシュコードCUBEを用いた建築物の空力不安定振動の研究),東京工業大学 環境・社会理工学院 修士課程学生,2019年1月4日~現在.
(理化学研究所 計算科学研究センター)
理研研修生:実習指導担当(実習テーマ:階層型直交メッシュコードCUBEを用いた薄板構造解析の研究),研修生:山梨大学 大学院総合研究部 修士課程学生,2018年4月1日~現在.
(理化学研究所 計算科学研究センター)
理工学研究科 開放環境科学専攻 応用力学・計算力学専修 必修科目 応用力学・計算力学特論第1(2019年6月10日)
(Keio University)
スーパーコンピュータと近未来のデジタル社会のお話
Role(s):Lecturer
学校法人滝学園 滝中学校・滝高等学校 学校法人滝学園 滝中学校・滝高等学校 土曜講座 2023.7
産官学で働いてみて
Role(s):Lecturer
日本計算工学会 第28回計算工学講演会学生向けランチョンセミナー 2023.6
第62回名大祭学術講演会:スーパーコンピュータ「富岳」で目指す、ものづくりのデジタル革命
Role(s):Lecturer
第62回名大祭実行委員会 2021.6
More details
Audience: Junior students, High school students, College students, Graduate students, Teachers, Guardians, General, Company
Type:Lecture
Scalable fixed-mesh method for simulations of multi-material vehicle structures
Role(s):Lecturer
RIKEN Center for Computational Science The 187th R-CCS cafe 2019.12
More details
Audience: Graduate students, Researchesrs, General, Scientific, Company
Type:Lecture
ミニ四駆少年が夢みた近未来のクルマづくり〜スパコン「富岳」で目指す自動車シミュレーション〜
Role(s):Lecturer
理化学研究所 計算科学研究センター 2019年度一般公開 ミニ講演会 2019.11
R-CCS研究紹介:ミニ四駆の空気の流れをスパコンで調べてみよう!
Role(s):Planner, Organizing member
理化学研究所 2018.11
More details
Audience: Infants, Schoolchildren, Junior students, Guardians
Type:University open house
Fixed-mesh method for solid/structure simulation
Role(s):Lecturer
2017.3
More details
Audience: Researchesrs, General, Company
Type:Lecture
スパコンでわかる、身近な「流れの世界」~シミュレーションがひらく次世代のクルマづくり~
Role(s):Lecturer
理化学研究所 京コンピュータ見学(熊本県立熊本高等学校1年生) 2016.12
スパコンでわかる、身近な「流れの世界」~シミュレーションがひらく次世代のクルマづくり~
Role(s):Lecturer
理化学研究所 理化学研究所 計算科学研究機構 一般公開 ミニ講演会 2016.11
More details
Audience: General
Type:Lecture
The Dream of Generative AI Engineering - Koji Nishiguchi, Nagoya University TV or radio program
NHK Science View https://www3.nhk.or.jp/nhkworld/en/shows/2015315/ 2024.3
NHK BS1スペシャル「見えざる敵に挑む~AIが迫る感染爆発~」 TV or radio program
NHK BS1 NHK BS1スペシャル「見えざる敵に挑む~AIが迫る感染爆発~」 https://www.nhk.jp/p/bssp/ts/6NMMPMNK5K/episode/te/G56MXP94XZ/ 2020.6
科学エッセイ記事「科学の中身」:次世代スパコン、自動車設計を革新 Newspaper, magazine
産業経済新聞社 産経新聞朝刊25面(関西版) 2018.6
統一的シミュレーションでものづくりの革新を目指す研究者 Promotional material
理化学研究所 理研ニュース 2017.10
More details
Author:Other
Copyright © Nagoya University