中国机械工程2011，Vol.22Issue(7)：780-784,5.
基于模态应力恢复的车架疲劳寿命计算研究
Fatigue Life Analysis for Auto Frame Based on Modal Stress Recovery
摘要
Abstract
A fatigue analysis method based on MSR was presented and applied to predict the life of a frame. The finite element modal analysis of frame was performed in the software MSC. Nastran.Secondly, the whole vehicle rigid-flexible coupling model equipped with the frame as a flexible component was built and analyzed in ADAMS/Car Ride to obtain the modal displacement histories through driving on strengthen-road. Then the stress histories of the frame were got by MSR. The life distribution of the frame and the fatigue lives of the most damaged points were obtained. The results are in accordance with those of road tests,and this method is valid to evaluate car-body structure fatigue life at product design stage conveniently.关键词
模态应力恢复/车架/疲劳寿命/刚柔耦合Key words
modal stress recovery(MSR)/ frame/ fatigue life/ rigid-flexible coupling分类
交通工程引用本文复制引用
钱立军,吴道俊,祝安定,章适..基于模态应力恢复的车架疲劳寿命计算研究[J].中国机械工程,2011,22(7):780-784,5.基金项目
国家重大技术装备研制和重大产业技术开发专项(发改办高技[2007]2823号) （发改办高技[2007]2823号）
