Development of synthesized analysis/design system for rubber-based energy dissipation devices

橡胶基耗能装置综合分析/设计系统开发

• 批准号: 13555126
• 负责人: ABE Masato
• 金额: $ 8万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13555126/
• 关键词: Base-isolation; structural control; energy dissipation device; high damping rubber; image analysis; finite element analysis; hybrid analysis; constitutive law; 高減衰ゴム; 天然ゴム; 免震支承; エネルギー吸収材料; 構成則; 画像計測; 性能評価

In this research, finite element model of laminated rubber bearings is developed and their design criteria are proposed.At the first part of the research, the material tests of rubber are systematically conducted to understand their basic mechanical behaviors, I.e., stress-strain relation, rate dependency and failure state. Based on the results of these tests, a constitutive law, which consists of parallel combination of elasto-plastic body and hyper elastic body, is proposed. Furthermore, a failure criterion, which is the combination of polynomials of the strain invariants, is also developed. The proposed constitutive law and the failure criterion are shown to agree well with the experimental results. Then, an analysis method is proposed, in which the strain field of laminated rubber bearings measured by image processing is combined with the finite element analysis to confirm the applicability of the proposed model to the bearing including local deformation. Furthermore, the bulk modu … More lus of rubber materials is computed by this image-based analysis method.At the second part of the research, three dimensional finite element model of laminated rubber bearings is developed. Here, a mixed finite element method is employed to incorporate the proposed constitutive model and to stabilize the numerical computation at large deformation. In order to verify the accuracy of the developed model, multi-axial loading experiments and failure experiment of laminated rubber bearings are conducted. Applicability of the developed finite element model is verified in comparison with these experimental results and developed finite element model is shown to have the capability to predict the behavior of the rubber bearings.At the last part of the research, design criteria for vertical, rotational, and torsional deformation, and failure of laminated rubber bearings are proposed. The proposed criteria show good agreement with experimental results and/or finite element prediction, which implies that the accuracy of the present design code can be improved considerably. Less

本研究建立了叠层橡胶支座的有限元模型，提出了叠层橡胶支座的设计准则。首先，对叠层橡胶支座进行了系统的材料试验，以了解叠层橡胶支座的基本力学性能，即：应力-应变关系、速率依赖性和破坏状态。在此基础上，提出了一种由弹塑性体和超弹性体平行组合而成的本构关系。此外，一个破坏准则，这是一个组合的多项式的应变不变量，也开发。所提出的本构关系和破坏准则与实验结果吻合较好。然后，提出了一种分析方法，在该方法中，通过图像处理测量的叠层橡胶支座的应变场与有限元分析相结合，以确认所提出的模型的适用性，包括局部变形的轴承。此外，散装模块 ...更多信息 本文的第二部分建立了叠层橡胶支座的三维有限元模型。在这里，一个混合有限元方法，将建议的本构模型，并稳定在大变形的数值计算。为了验证模型的准确性，进行了叠层橡胶支座的多轴加载试验和破坏试验。通过与试验结果的比较，验证了有限元模型的适用性，表明有限元模型具有预测橡胶支座性能的能力。最后，提出了叠层橡胶支座竖向、转动、扭转变形和失效的设计准则。所提出的准则与实验结果和/或有限元预测显示出良好的一致性，这意味着本设计规范的准确性可以大大提高。少

项目成果

吉田純司, 阿部雅人, 藤野陽三: "高減衰積層ゴム支承の3次元有限要素解析法"土木学会論文集. No.717/I-61. 37-52 (2002)

Junji Yoshida、Masato Abe、Yozo Fujino：“高阻尼层压橡胶支座的三维有限元分析方法”日本土木工程学会No.717/I-61（2002）。

M. Abe, J. Yoshida, and Y. Fujino: "Uniaxial and biaxial property of base-isolated bearings and its modeling"Proceedings of the Japan Society of Civil Engineers. No.696/1-58. 125-144 (2002)

M. Abe、J. Yoshida 和 Y. Fujino：“基础隔震轴承的单轴和双轴特性及其建模”日本土木工程师学会会议录。

吉田純司, 阿部雅人, 藤野陽三: "高減衰ゴム材料の構成則"土木学会論文集. No.710/I-60. 209-224 (2002)

Junji Yoshida、Masato Abe、Yozo Fujino：“高阻尼橡胶材料的本构定律”，日本土木工程学会论文集 No.710/I-60（2002）。

J.Yoshida, M.Abe, Y.Fujino: "Finite Element Modeling for the High Damping Rubber Bearing, 3rd DIANA World Conference"Finite Elements in Civil Engineering Applications. 375-384 (2002)

J.Yoshida、M.Abe、Y.Fujino：“高阻尼橡胶轴承的有限元建模，第三届 DIANA 世界会议”土木工程应用中的有限元。

J.Yoshida, M.Abe, Y.Fujino, C.S.Lewangawage: "Experimental Investigation of Mechanical Properties of Laminated Rubber Bearings using the Image Processing Technique"7^<th> International Seminar on Seismic Isolation, Passive Energy Dissipation and Active Co

J.Yoshida、M.Abe、Y.Fujino、C.S.Lewangawage：“利用图像处理技术对叠层橡胶轴承机械性能进行实验研究”第7届隔震、被动耗能与主动耦合国际研讨会