J4 ›› 2008, Vol. 19 ›› Issue (9): 0-1054.
• 科学基金 •
李志鑫1;李小清1;陈学东1,2;陈鹿民2
收稿日期:
修回日期:
出版日期:
发布日期:
Li Zhixin1;Li Xiaoqing1;Chen Xuedong1，2;Chen Lumin2
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Revised:
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Published:
摘要：
在对结构进行模态分析时，边界条件的施加方式会直接影响分析结果的正确性。对结构件在两种典型边界条件下的模态计算给予了详细的分析，采用试验模态分析方法，对结构件进行了固有特性的辨识，验证了施加不同的边界条件会导致分析结果出现很大差别。对结构件进行了重分析，结合模态试验，对结构件边界条件进行了辨识，得出了正确边界条件的施加方式。
关键词: 有限元分析；边界条件；重分析；模态试验
Abstract:
During the period of carrying on the mode analysis, how to deal with the boundary conditions will influence the accurate analytical result directly. The theory discussion is carried on in the paper. Two typical boundary conditions were carried on the structure and the mode analysis was implemented in detail, too. There have much more different between them. The test mode was carried on, through which we find the importance of boundary conditions will influence the result furthermore. Through the reanalysis and the compare between the test and the reanalysis results, the frequencies and the accurate boundary conditions was recognized.
Key words: finite element analysis, boundary conditions, reanalysis, model test
中图分类号:
TB122
李志鑫;李小清;陈学东;陈鹿民;. 有限元分析中边界条件对模态影响的研究[J]. J4, 2008, 19(9): 0-1054.
Li Zhixin;Li Xiaoqing;Chen Xuedong，;Chen Lumin. The Study on Boundary Conditions to the Effect of Mode Analysis in FEA[J]. J4, 2008, 19(9): 0-1054.
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