| 整车模态分析中焊点模拟方法的研究 |
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| 引用本文： | 宋海生,史文库,龙岩,方德广,郭福祥.整车模态分析中焊点模拟方法的研究[J].汽车工程,2011,33(11):920-923. |
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| 作者姓名： | 宋海生 史文库 龙岩 方德广 郭福祥 |
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| 作者单位： | 1. 吉林大学,汽车仿真与控制国家重点实验室,长春130025
2. 南京依维柯汽车有限公司,南京,210028 |
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| 摘 要： | 针对整车有限元模态分析中,采用刚性梁单元模拟焊点时刚度无法控制和严重依赖网格的弊端,提出采用弹塑性梁单元模拟焊点的方法.以某轻型客车为例,建立整车有限元模型,分别采用上述两种单元模拟焊点进行模态分析.与试验结果的对比表明,整车模态分析中采用弹塑性梁单元模拟焊点的方法更接近试验结果,即更为准确、有效.
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| 关 键 词： | 整车模态分析 焊点 有限元法 |
A Study on Spot-weld Modelling in Vehicle Modal Analysis |
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| Song Haisheng,Shi Wenku,Long Yan,Fang Deguang,Guo Fuxiang.A Study on Spot-weld Modelling in Vehicle Modal Analysis[J].Automotive Engineering,2011,33(11):920-923. |
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| Authors: | Song Haisheng Shi Wenku Long Yan Fang Deguang Guo Fuxiang |
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| Institution: | Song Haisheng1,Shi Wenku1,Long Yan1,Fang Deguang2 & Guo Fuxiang2 1.Jilin University,State Key Laboratory of Automotive Simulation and Control,Changchun 130025,2.Nanjing Iveco Automotive Limited Company,Nanjing 210028 |
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| Abstract: | In view of the defects of incapability in stiffness control and high dependence on mesh when spot-weld is modeled by rigid beam element as convention in vehicle finite element modal analysis,a scheme of modeling spot-weld by elastoplastic beam element instead is proposed.As an example,a finite element model for a light bus is built,on which modal analyses are performed with above-mentioned two kinds of beam element used respectively to represent spot-weld.The comparison of simulation results with test data ... |
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| Keywords: | vehicle modal analysis spot weld FEM |
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