| 一种用于弹性机构有限元动力学分析的刚体单元 |
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| 引用本文： | 侯保林 钱林方. 一种用于弹性机构有限元动力学分析的刚体单元[J]. 南京理工大学学报(自然科学版), 1998, 22(6): 501-504 |
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| 作者姓名： | 侯保林 钱林方 |
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| 作者单位： | 南京理工大学机械学院!南京210094 |
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| 摘 要： | 在考虑构件弹性小变形的机构动力学有限元分析中，某些构件的弹性特性对动力学过程影响很小，因此可以作为刚体单元来处理，该文对这种刚体单元作了详细的描述，建立了其质量矩阵和刚度矩阵，这种单元可以作为考虑构件弹性变形的机构动力学有限元法的单元库中的一种基本单元，用于模拟机构系统中的刚性构件。
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| 关 键 词： | 机构学 动力学 有限元法 刚体单元 弹性机构 |
A Rigid Element for Dynamic Analysis of Elastic Mechanisms by FEM |
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| Hou Baolin Qian L infang Yuan Rensu. A Rigid Element for Dynamic Analysis of Elastic Mechanisms by FEM[J]. Journal of Nanjing University of Science and Technology(Nature Science), 1998, 22(6): 501-504 |
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| Authors: | Hou Baolin Qian L infang Yuan Rensu |
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| Abstract: | In the dynamic analysis of elastic mechanisms with small elastic deformation by finite element method,the elastic characteristics of some components have little effect on the dynamic processes of mechanism systems,so these components can be processed as a kind of rigid elements. This paper describes the rigid element,and builds its mass matrix and stiffness matrix.The rigid element can be used as a basic element type of the element library for the elastic mechanism dynamic analysis by FEM,to simulate the rigid components in mechanism systems. |
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| Keywords: | mechanism dynamics finite element methods rigid element |
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