| 汽车减震器弹簧下座的疲劳仿真分析及结构优化 |
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| 引用本文： | 贺李平,王国丽,刘建勇,顾亮,袁维佳.汽车减震器弹簧下座的疲劳仿真分析及结构优化[J].北京理工大学学报,2011,31(1):33-37. |
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| 作者姓名： | 贺李平 王国丽 刘建勇 顾亮 袁维佳 |
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| 作者单位： | 贺李平,王国丽,刘建勇,顾亮,HE Li-ping,WANG Guo-li,LIU Jian-yong,GU Liang(北京理工大学,机械与车辆学院,北京,100081);袁维佳,YUAN Wei-jia(首都航天机械公司工艺处,北京,100076) |
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| 摘 要： | 基于准静态有限元疲劳分析方法提取弹簧下座的力学模型,建立了弹簧下座的有限元模型,对其进行了疲劳寿命预测,在此基础上对弹簧下座进行了结构优化.疲劳台架实验和裂纹断口分析验证了疲劳仿真分析的正确性.结果表明疲劳裂纹并非一定发生在结构应力最大处,还与应力梯度以及结构所处的载荷状态相关.
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| 关 键 词： | 弹簧下座 疲劳 裂纹 有限元分析 |
| 收稿时间： | 2010/1/12 0:00:00 |
Fatigue Analysis and Structural Optimization for Spring-Seat Lower of Automobile Strut Assembly |
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| HE Li-ping,WANG Guo-li,LIU Jian-yong,GU Liang and YUAN Wei-jia.Fatigue Analysis and Structural Optimization for Spring-Seat Lower of Automobile Strut Assembly[J].Journal of Beijing Institute of Technology(Natural Science Edition),2011,31(1):33-37. |
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| Authors: | HE Li-ping WANG Guo-li LIU Jian-yong GU Liang and YUAN Wei-jia |
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| Institution: | School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;Technical Department, Capital Aerospace Machinery Company, Beijing 100076, China |
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| Abstract: | To carry on fatigue analysis and structural optimization for spring-seat lower of strut assembly, the finite element model of spring-seat lower was set up. On the basis of quasi-static finite element fatigue analysis, the fatigue life of spring-seat lower was predicted by the way of emulation. Meanwhile, the structure of spring-seat lower was optimized. The correctness of fatigue simulation analysis is verified by fatigue bench test and crack fracture analysis. |
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| Keywords: | spring-seat lower fatigue crack finite element analysis |
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