Analysis of a Front Sub-frame Fatigue Strength Based on Miner Theory
In this paper, the 3-D model of front sub-frame of a car is established by using software CATIA. And further according to the finite element elementary theory, by using the software Hypermesh and the software MSC Patran, the finite element model of the sub-frame is established, and then the finite element stress analysis is carried on by using the MSC Nastran software. Based on the results of stress analysis, the fatigue life of the front sub-frame is calculated by using the software MSC Fatigue, and the distribution of fatigue life and the value life of dangerous point for the front sub-frame are got, which are compared with the failure of the relative ratio in the fatigue bench testing. A combined method is found based on fatigue bench test and simulation, and this will provide basis for the optimal design of front sub-frame.
front sub-frame fatigue analysis stress life S-N curve Load
Xu Jiangtao Song Yandong Ding Jibin Ding Shiqing
Department of Mechanical Engineering Nanjing Institute of Industry Technology, Nanjing, 210046, China
国际会议
太原
英文
191-193
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）