| Discrete Element with Flexible Connector for Dynamic Analysis of 3-D Beam Structures |
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| 作者单位： | Cheng Baorong，Zheng Zhaochang Hou Zhichao
Professor，Department of Engineering Mechanics，Tsinghua University，Beijing 100084 Lecturer，Department of Engineering Mechanics，Tsinghua University，Beijing 100084 |
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| 摘 要： | Combined multi-body dynamics with structural dynamics,a new discrete element with flexibleconnector,which is applicable for 3-D beam structures,is developed in this paper.Both the generalizedelastic coefficient matrix of the flexible connector and the mass matrix of discrete element may be off-diag-onal in a general case.The zero-length rigid element is introduced to simulate the node at which multiple el-ements are jointed together.It may also be effective when the axes of adjacent elements are not in the sameline.The examples for eigenvalue calculation show that the model is successful.It can be extended to thegeometric nonlinear response analysis.
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Discrete Element with Flexible Connector for Dynamic Analysis of 3-D Beam Structures |
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| Authors: | Cheng Baorong Zheng Zhaochang Hou Zhichao
Professor |
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| Institution: | Cheng Baorong,Zheng Zhaochang Hou Zhichao
Professor,Department of Engineering Mechanics,Tsinghua University,Beijing 100084 Lecturer,Department of Engineering Mechanics,Tsinghua University,Beijing 100084 |
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| Abstract: | Combined multi-body dynamics with structural dynamics, a new discrete element with fiexible connector, which is applicable for 3- D beam structures, is developed in this paper. Both the generalized elastic coefficient matrix of the flexible connector and the mass matrix of discrete element may be off-diagonal in a general case. The zero-length rigid element is introduced to simulate the node at which multiple elements are jointed together. It may also be effective when the axes of adjacent elements are not in the same line. The examples for eigenvalue calculation show that the model is successful. It can be extended to the geometric nonlinear response analysis. |
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| Keywords: | discrete element flexible connector zero-length rigid element 3-D beam structures dynamic analysis |
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