摘要
提出一种基于相对疲劳损伤谱的疲劳耐久试验加速方法。以某轿车为研究对象,在试验场采集轴头加速度信号和减振器位移信号,以结构耐久性试验程序的相对疲劳损伤谱为目标,通过优化算法对试验程序进行优化,在保证相对疲劳损伤谱一致前提下,最大限度地缩短试验周期。
The authors propose a durability test acceleration method based on relative fatigue damage spectrum（RDS）. Taking a vehicle as the research object, they acquire the spindle acceleration signal and shock- absorber displacement signal. They take the RDS of structural durability test procedures as a target to optimize the test procedure through optimizing algorithm. And under the premise of guaranteeing the RDS consistent, they try to shorten the test cycle as possible.
出处
《客车技术与研究》
2016年第2期46-48,55,共4页
Bus & Coach Technology and Research
关键词
整车疲劳
耐久试验
相对疲劳损伤谱
加速方法
vehicle fatigue
durability test
relative fatigue damage spectrum（RDS）
acceleration method
