摘要
针对某型汽车排气系统的结构疲劳耐久性问题,提出了基于MSC.Fatigue的CAE分析方法。即通过合理处理汽车排气系统的实体模型来建立有限元模型,并模拟装车时的行驶状态对有限元模型进行边界条件加载,进而利用MSC.Fatigue对应力计算结果进行疲劳寿命分析,从而解决了寻找排气系统疲劳损坏易发位置和模拟计算疲劳寿命的问题。
To solve the problem of the structural fatigue durability of an automotive exhaust system, a solution of using CAE analysis based on MSC.Fatigue is put forward. That is, obtaining finite element model through dealing with a solid automotive exhaust model properly, and imitating the real driving status to load the finite element model boundary conditions, MSC.Fatigue is then used in the stress calculation results for fatigue life analysis, the identification of the location in which fatigue failure is prone to occur in the exhaust system and fatigue life simulative calculation are thus solved.
出处
《汽车技术》
北大核心
2010年第6期29-33,共5页
Automobile Technology
