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Development of CAD/CAE Seamless System Using Gridless Methods

Research Project

Project/Area Number 07455048
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionYOKOHAMA NATIONAL UNIVERSITY (1996)
The University of Tokyo (1995)

Principal Investigator

OKUDA Hiroshi  Yokohama National University Associate Professor, 工学部, 助教授 (90224154)

Co-Investigator(Kenkyū-buntansha) YAGAWA Genki  University of Tokyo Graduate School of Engineering, Professor, 大学院・工学系研究科, 教授 (40011100)
吉村 忍  東京大学, 大学院・工学系研究科, 助教授 (90201053)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 1996: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1995: ¥6,000,000 (Direct Cost: ¥6,000,000)
KeywordsGridless methods / Element-free methods / CAD / CAE seamless system / Massively parallel / Adaptive analysis
Research Abstract

The aim of this study is to place the gridless methods at the center of the CAE system as an analyzer. The gridless methods, which are different approaches from the grid methods like FEM or FDM,are categorized into two types : the first one utilizes the moving Galerkin method and the second one modifies the procedure for making FEM stiffness matrices. As to the first approach, it is found that the comparable accuracy to FEM is obtained when using the same node distribution. Also, Node-by-Node meshless method is developed, which does not need the background cell. By developing the paint brush tool for node generation as well as the interface with the CAD,the prototype of CAD/CAE system is developed. As to the second approach, which is "a kind of meshless method" evaluating the stiffness matrices by temporally defining the elememt, the massively parallel and/or the cluster computing have been performed. Also, higher-order element and the application to fluid analysis are considered.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] 奥田 洋司、長嶋 利夫、矢川 元基: "エレメントフリーガラーキン法に関する基礎的検討(第1報、常微分方程式への適用)" 日本機械学会論文集(A編). Vol.61, No.590. 2302-2308 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 長嶋 利夫、奥田 洋司、矢川 元基: "二次元弾性問題へのエレメントフリーガラーキン法の適用" 日本銅構造協会、構造工学における数値解析シンポジウム論文集. Vol.19. 309-314 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 矢川 元基、山田 知典: "Free Mesh Method(一種のメッシュレス法)の並列化" 日本機械学会、第8回計算力学講援会講演論文集. No.95-4. 437-438 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Genki YAGAWA, Tomonori YAMADA and Hiroshi KAWAI: "Some Remarks on Free Mesh Method:A Kind of Meshless Finite Element Method." Proc.of the International Conference on Computational Engineering Science(ICES'95). Vol.2. 1572-1578 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 長嶋 利夫、奥田 洋司、矢川 元基: "エレメントフリーガラーキン法に関する基礎的検討(第2報)二次元ポテンシャル問題への適用" 日本機械学会論文集(A編). Vol.62,No.599. PP1746-1753 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Nagashima, H.Okuda and G.Yagawa: "Development of Meshless Approach Based on the Galerkin Method." JSCES(日本計算工学会),Proc.Conf.on Comp.Eng.and Sci.Vol.1. 3-6 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 長嶋 利夫、奥田 洋司、矢川 元基: "節点単位の処理に基づくメッシュレス法の開発" 日本機械学会論文集(A編). Vol.62, No.603. 2474-2480 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 奥田 洋司: "計算工学におけるメッシュレス解法" 計算工学. Vol.1, No.3. 151-162 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Hiroshi OKUDA,Toshio NAGASHIMA and Genki YAGAWA: "Basic Study on Element-Free Galerkin Method (1st Report, Application to Ordinary Diffierential Equation)" Trans.of JSME,Ser.A.Vol.61, No.590. 2302-2308 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Toshio NAGASHIMA,Hiroshi OKUDA and Genki YAGAWA: "Application of Element-Free-Galerkin Method to 2D Elastic Problems" Proc.JSSC Symp.Comp.Mech.Struct.Eng.Related Fields. Vol.19. 309-314 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Genki YAGAWA and Tomonori YAMADA: "Parallel Computing of Free Mesh Method" JSME,The 8th Computational Mechanics Conference. No.95-4. 437-438 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Genki YAGAWA,Tomonori YAMADA and Hiroshi OKUDA: "Some Remarks on Free Mesh Method : A Kind of Meshless Finite Element Method Computational" Proc.of the International Conf.on Computational Engineering Science (ICES'95). Vil.2. 1572-1578 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Hiroshi OKUDA,Toshio NAGASHIMA and Genki YAGAWA: "Basic Study on Element-Free Galerkin Method (2nd Report, Application to Two-dimensional Potential Problem)" Trans.of JSME,Ser.A. Vol.62, No.599. 1746-1753 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Toshio NAGASHIMA,Hiroshi OKUDA and Genki YAGAWA: "Development of Meshless Approach Based on the Galerkin Method" JSCES,Proc.Conf.on Comp.Eng.and Sci.Vol.1. 3-6 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Toshio NAGASHIMA,Hiroshi OKUDA and Genki YAGAWA: "Development of Meshless Method Based on Node-by Node Procedures (Formulation and Application to Two-Dimensional Elastic Problems)" Trans.of JSME,Ser.A. Vol.62, No.603. 2474-2480 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Hiroshi OKUDA: "Meshless Methods on Computational Mechanics" Journal of the Japan Society for Computational Engineering and Science. Vol.1, No.3. 151-162 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 長嶋利夫、奥田洋司、矢川元基: "エレメントフリーガラーキン法に関する基礎的検討(第2報)二次元ポテンシャル問題への適用" 日本機械学会論文集(A編). Vol.62,No.599. 1996 (1746-1753)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Nagashima,H.Okuda and G.Yagawa: "Development of Meshless Approach Based on the Galerkin Method" JSCES(日本計算工学会),Proc.Conf.in Comp.Eng.and Sci.Vol.1. 1996 (3-6)

    • Related Report
      1996 Annual Research Report
  • [Publications] 長嶋利夫、奥田洋司、矢川元基: "節点単位の処理に基づくメッシュレス法の開発" 日本機械学会論文集(A編). Vol.62,No.603. 1996 (2474-2480)

    • Related Report
      1996 Annual Research Report
  • [Publications] 奥田洋司: "計算工学におけるメッシュレス解法" 計算工学. Vol.1,No.3. 1996 (151-162)

    • Related Report
      1996 Annual Research Report
  • [Publications] 奥田洋司、長嶋利夫、矢川元基: "エレメントフリーガラーキン法に関する基礎的検討(第1報、常微分方程式への適用)" 日本機械学会論文集(A編). Vol.61 No.590. 2302-2308 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 長嶋利夫、奥田洋司、矢川元基: "二次元弾性問題へのエレメントフリーガラーキン法の適用" 日本鋼構造協会、構造工学における数値解析シンポジウム論文集. Vol.19. 309-314 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 矢川元基、山田知典: "Free Mesh Method(一種のメッシュレス法)の並列化" 日本機械学会、第8回計算力学講演会講演論文集. No.95-4. 437-438 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Genki YAGAWA,Tomonori YAMADA and Hiroshi KAWAI: "Some Remarks on Free Mesh Method:A Kind of Meshless Finite Element Method," Proc.of the International Conference on Computational Engineering Science(ICES'95),. Vol.2. 1572-1578 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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