客车飞轮壳的载荷谱测试及疲劳寿命分析

Test on Load Spectrum of Bus Flywheel Housing and Analysis on Its Fatigue Life

对某型客车飞轮壳的道路载荷进行了采集,得到其典型工况下的加速度载荷时间历程,并编制成载荷谱。基于频域的有限元疲劳方法分析了飞轮壳的疲劳强度,得到了飞轮壳疲劳强度的分布云图及疲劳热点,为改进飞轮壳结构提供参考。

This paper collects road loads of the flywheel housing of a bus and obtains its acceleration road time history under typical working conditions, and prepares a load spectrum; analyzes the fatigue strength of flywheel housing based on fine element method of frequency domain, obtains the distribution cloud picture of fatigue strength of flywheel housing and fatigue hot spot, and provides reference for improving the structure of flywheel housing.