车辆振动系统结构疲劳寿命预测方法及应用  

The method and application of fatigue life prediction for railway vehicle vibration system

作　　者：吕澎民[1] 赵邦华[1] 

机构地区：[1]兰州铁道学院机械系

出　　处：《兰州铁道学院学报》1996年第3期46-53,共8页Journal of Lanzhou Railway University

摘　　要：将机车车辆系统动力学理论与疲劳强度理论相结合，给出了机车车辆振动系统在线路随机激励下，进行结构可靠性疲劳寿命研究的一种通用方法，为新型车辆和高速列车结构疲劳寿命预测和可靠性疲劳设计提供了一种新的方法和途径．文中运用该方法对现有转８Ａ货车转向架摇枕进行了实际计算．This paper studies dynamics of railway vehicle vibration system and fatigue strenth and combination, and an uniform method of the reliability fatigue life on the construction under random excitation.This provides a new way of fatigue life prediction and reliability fatigue design for new vehicle and high-speed vehicle construction. By using the method, the bolster of Truck 8A is calculated, and the satisfactory results are obtianed.

关 键 词：车辆 随机振动 结构 疲劳 铁路 寿命 预测 

分 类 号：U270.12[机械工程—车辆工程]