| 基于有限元法的结构优化与灵敏度分析 |
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| 引用本文： | 马迅,过学迅,赵幼平,闵晓炜.基于有限元法的结构优化与灵敏度分析[J].机械科学与技术(西安),2002,21(4):558-561. |
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| 作者姓名： | 马迅 过学迅 赵幼平 闵晓炜 |
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| 作者单位： | [1]湖北汽车工业学院，十堰442002 [2]华中科技大学，武汉430074 |
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| 摘 要： | 探讨了用有限元法进行结构优化与灵敏度分析的一般思路 ;介绍了优化与灵敏度分析的基本理论及利用 I-DEAS软件进行优化的过程。以某轻型客车的车架为例 ,选弯曲刚度、扭转刚度和一阶扭转频率为性能约束 ,根据灵敏度分析结果 ,按高刚度、轻质量的要求 ,选择出有效的设计变量进行了重量最轻或性能最优的结构优化 ,并得出相应的结论。
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| 关 键 词： | 有限元法 优化 灵敏度分析 车架 |
| 文章编号： | 1003-8728(2002)04-0558-04 |
| 修稿时间： | 2001年8月29日 |
Structural Optimization and Sensitivity Analysis Based on Finite Element Method |
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| MA Xun ,GUO Xue-xun ,ZHAO You-ping ,MIN Xiao-wei.Structural Optimization and Sensitivity Analysis Based on Finite Element Method[J].Mechanical Science and Technology,2002,21(4):558-561. |
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| Authors: | MA Xun GUO Xue-xun ZHAO You-ping MIN Xiao-wei |
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| Affiliation: | MA Xun 1,GUO Xue-xun 2,ZHAO You-ping 3,MIN Xiao-wei 3 |
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| Abstract: | In this paper, the general method of structural optimization and sensitivity analysis based on the finite element method is presented. The basic theories about structural optimization and sensitivity analysis are introduced. A frame of a light-duty bus is used as an example. The bending stiffness, torsion stiffness and the first torsion mode frequency are selected to form the performance restraints. According to the results of the sensitivity analysis and the demand of high stiffness and light mass, the effective design variables are chosen. Two different optimization models are presented and comparisons are made. |
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| Keywords: | Finite element method Optimization Sensitivity analysis Frame |
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