| 轿车车身模态分析及结构优化设计 |
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| 引用本文： | 张平,雷雨成,高翔,汤涤军,肖杰.轿车车身模态分析及结构优化设计[J].汽车技术,2006(4):5-9. |
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| 作者姓名： | 张平 雷雨成 高翔 汤涤军 肖杰 |
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| 作者单位： | 同济大学;上海同济同捷科技股份有限公司 |
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| 摘 要： | 在保证车身结构力学特性的前提下,对白车身结构进行了简化,并以四边形板壳单元为主要离散单元,建立了某自主研发轿车白车身的模态分析有限元模型。通过对该有限元模型进行的自由模态分析,得到白车身的各阶模态频率和模态特性,为动态设计提供了参考依据。针对分析得到的局部不合理结构进行了零件结构和布局的优化设计,使整车刚度更趋合理。
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| 关 键 词： | 车身 模态分析 有限元 结构优化 |
| 文章编号： | 1000-3703(2006)04-0005-04 |
| 修稿时间： | 03 11 2006 12:00AM |
The Modal Analysis and Optimum Structure Design of Passenger Car Body |
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| Zhang Ping,Lei Yucheng,Gao Xiang,Tang Dijun,Xiao Jie.The Modal Analysis and Optimum Structure Design of Passenger Car Body[J].Automobile Technology,2006(4):5-9. |
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| Authors: | Zhang Ping Lei Yucheng Gao Xiang Tang Dijun Xiao Jie |
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| Institution: | 1.Tongji University;2.Shanghai Tongji Tongjie Science and Technology Company |
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| Abstract: | Under the condition of guaranteeing mechanics characteristics of body structure,simplify the structure of body-in-white,and take quadrangular sheet shell unit as the main divergent unit,and establish modal analysis FEA model of body-in-white of a independent development passenger car.Through the free modal analysis of this FEA model,acquire different order modal frequency and modal characteristics of body-in-white,and supply the reference standard for dynamic design.According to the local unreasonable structure,optimize the design of part structure and layout,and make the rigidity of complete vehicle more reasonable. |
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| Keywords: | Body Modal analysis FEA Optimum structure |
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