| 基于有限元方法的发动机悬置强度改进设计 |
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| 引用本文： | 姜莞,史文库,滕腾,王清国.基于有限元方法的发动机悬置强度改进设计[J].汽车技术,2011(1). |
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| 作者姓名： | 姜莞 史文库 滕腾 王清国 |
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| 作者单位： | 1. 吉林大学汽车动态模拟国家重点实验室
2. 中国第一汽车集团公司技术中心 |
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| 基金项目： | 吉林省重大专项(20086004) |
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| 摘 要： | 为解决某车辆发动机悬置橡胶撕裂破坏问题,建立了该发动机悬置的有限元模型,计算所得悬置的垂向刚度与试验结果基本吻合,验证了该模型的有效性。静态模型和动态模型计算结果表明,橡胶垫内部应力集中出现在受力面转角处。对悬置模型进行结构改进,并对改进前、后的试件进行了刚度测量试验和疲劳寿命试验。结果表明,改进后发动机悬置垂向静刚度比原悬置降低了7.5%;静刚度变化率和压缩永久变形量分别为规定限值的32%和6%。
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| 关 键 词： | 发动机 悬置强度 改进设计 有限元方法 |
Strength Enhancement Design of Engine Mount based on FEM |
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| Jiang Wan,Shi Wenku,Teng Teng,Wang Qingguo.Strength Enhancement Design of Engine Mount based on FEM[J].Automobile Technology,2011(1). |
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| Authors: | Jiang Wan Shi Wenku Teng Teng Wang Qingguo |
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| Institution: | Jiang Wan1,Shi Wenku1,Teng Teng2,Wang Qingguo2(1.State Key Laboratory of Automobile Dynamical Simulation,Jilin University,2.FAW Group Corporation R&D Center) |
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| Abstract: | To solve the problem of rubber tearing and damage of some vehicle engine mount,finite element(FE) model of engine mount was built,the calculated mount vertical stiffness was roughly identical with the test data,proving validity of this model.The computation of static model and dynamic model show that the internal stress of the rubber pad concentrates at the corner of the stress-bearing surface.Structure of the mount model is modified,and stiffness measurement and fatigue durability test were made to the tes... |
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| Keywords: | Engine Mount strength Modification design FEM |
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