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Development of Mixed Finite Element Analysis Method for Laminated Rubber Bearing

Research Project

Project/Area Number 06650085
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Materials/Mechanics of materials
Research InstitutionUniversity of Tsukuba

Principal Investigator

WATANABE Osamu  Institute of Engineering Mechanics, Univ.of Tsukuba, Assoc.Prof., 構造工学系, 助教授 (80111368)

Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1995: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1994: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsLaminated rubber bearing / Mixed method / Finite-element method / Structural analysis / 三次元解析 / 応力解析 / 超弾性体
Research Abstract

The laminated rubber bearing consisting fo rubber sheets and steel plates has been widely used in base structures to absorb earthquake vibration. The function of this bearing is to support all the weight of the structure and protect the structure from shear vibration by earthquake. Due to the nearly incompressible property of hyperelasticity, the displacement-based finite-element solutions cause large errors in pressure solutions. In order to overcome this shortcoming, a mixed method has been proposed, where pressure and displacement fields are developed as independent variables. Finite-element solutions depend upon shape function and the numerical integration technique ; however, the suitable numerical condition for a laminated rubber bearing has not been fully discussed. The present study shows the mixed finite-element formulation in rate form for hyperelasticity, and show numerical examples of the laminated rubber bearing system in shear deformation in 2-dimensional as well as 3-dimensional case to clarify the advantage of the analysis method and the fundamental feature of mechanical response.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 松田、渡部: "低次要素を用いた積層ゴムの混合形有限要素解析" 日本機械学会論文集(A編). 61. 1615-1622 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 松田、渡部: "低次要素を用いた積層ゴムの混合形有限要素解析" 構造工学における数値解析法シンポジウム論文集. 18. 241-246 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] A.Matsuda,O.Watanabe: "3-Dimensional Mixed Finite Element Analysis of Laminated Rubber Bearing Using Lower Order Element," International Journal.(to be prepare).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] A.Matsuda, O.Watanabe: "Mixed Finte-Element Analysis of Laminated Rubber Bearing Using Lower-Order Element" Trams.JSME,Ser.A. Vol.61. 1615-1622 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] A.Matsuda, O.Watanabe: "Mixed Finite-Element Analysis of Laminated Rubber Bearing Using Lower-Order Element" Proc.Namerical Analysis Method is Strukctural Eujincering and Related Fields. Vol.18. 241-246 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] A.Matsuda, O.Watanabe: "3-Dimensional Mixed Finite-Element Analysis of Laminated Rubber Bearing Using Lower-Order Element" for Intennational Journal. (to be prepared).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 松田昭博・渡部修: "低次要素を用いた積層ゴムの混合型有限要素解析" 日本機械学会論文集 A編. 61. 1615-1622 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 松田昭博,渡部 修: "低次要素を用いた積層ゴムの混合型有限要素解析" 構造工学における数値解析法シンポジウム論文集. 18. 241-246 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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