| 引用本文: | 李东旭,孙丕忠,唐乾刚.多体结构连接部件的有限单元模型.[J].国防科技大学学报,2000,22(6):6-9.[点击复制] |
| LI Dongxu,SUN Peizhong,TANG Qiangang.Finite Element Model for the Joints in Multi-body Structures[J].Journal of National University of Defense Technology,2000,22(6):6-9[点击复制] |
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| 多体结构连接部件的有限单元模型 |
| 李东旭, 孙丕忠, 唐乾刚 |
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(国防科技大学 航天与材料工程学院, 湖南 长沙 410073)
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| 摘要: |
| 针对多体结构中连接部位带来的运动不连续问题，提出了将连接部件不作节点处理而作单元看待的设想。从力学基本原理出发推导了单元的刚度矩阵与阻尼矩阵，并由拉格朗日方程推导了这种单元的平衡方程。 |
| 关键词: 多体结构 连接部件 连接单元 |
| DOI： |
| 投稿日期：2000-05-23 |
| 基金项目:国家“863”应用基础研究项目基金资助(863-2) |
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| Finite Element Model for the Joints in Multi-body Structures |
| LI Dongxu, SUN Peizhong, TANG Qiangang |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| A finite element model for the joints in multi-body structures has been presented. Based on the mechanical principles, the stiffness matrix and damping matrix of the finite element of the joint have been deduced. By this way, the non-continuous physical system becomes continuous mathematically. So, the idea presented in this paper gives us another way to analyze the dynamical problem in a multi-body structures. |
| Keywords: multi-body structure joint joint element |
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