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| A finite element analysis and topology optimization method for structures with free damping |
| Received:September 26, 2010 Revised:January 04, 2011 |
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| DOI：10.7511/jslx20122005 |
| KeyWord:applied damping finite element analysis topology optimization automotive body structure |
| Author | Institution |
| 吕毅宁 |
清华大学 汽车工程系 汽车安全与节能国家重点实验室, 北京 ; 中国船级社技术研究开发中心, 北京 |
| 吕振华 |
清华大学 汽车工程系 汽车安全与节能国家重点实验室, 北京 |
| 赵波 |
清华大学 汽车工程系 汽车安全与节能国家重点实验室, 北京 |
| 王超 |
清华大学 汽车工程系 汽车安全与节能国家重点实验室, 北京 |
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| Abstract: |
| A finite element (FE) modeling and analysis method is proposed for the dynamic analysis of complex structures with free damping such as car bodies,which consists of effective FE modeling methods for both thin-walled structures with free damping and visco-elastic material characteristics,and suitable FE analysis methods for their dynamic analysis as well.A topology optimization method is then proposed for optimal design of damping treatments with the objective of minimizing forced response,which consists of design optimization problem formulation and choice of suitable solution algorithms.The applied damping of both a simple thin plate and a practical car floor panel are analyzed and optimized,which demonstrates the effectiveness of the proposed analysis and topology optimization methods. |
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