1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641
2. Ningbo Tuopu Group Co., Ltd., Ningbo 315806
Taking the upper control arm of one vehicle as an objective, the finite element model has been established in this paper. The collapse analysis based on the finite element model under tension and compression condition has been conducted, and the corresponding test has been finished to verify the result of finite element analysis. It is shown that the test and finite element analysis of the collapse to the control arm are basically identical. The stress and strain information of the fatigue hot point has been extracted from the finite element analysis results to establish the damage parameter. The fatigue life prediction by using the damage parameter based on the critical plane approach has been introduced to the control arm, and the fatigue test has been conducted as well. The average life of the test is close to the prediction life indicating that the fatigue life prediction model can be used to the fatigue life prediction of the metal components of vehicle.
王红民1 谢锋1 郑国峰1 王小莉1 上官文斌1 俞宏2. 汽车悬架控制臂拉压溃分析及疲劳寿命预测[J]. 振动与冲击, 2016, 35(20): 41-46.
Hong-Min Wang1 Feng Xie1 Guo-Feng Zheng1 Xiao-Li Wang1 Wen-Bin Shangguan1 Hong Yu2. The collapse analysis of the vehicle suspension control arm and fatigue life prediction. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(20): 41-46.
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