摘要
采用一般概率摄动有限元法的边值求解方法,推导了多随机参数系统周期解稳定性的灵敏度和可靠性计算公式,分析具有随机参数的滑动轴承-转子系统的周期响应以及系统在正常运行的情况下的灵敏度、可靠性和可靠性灵敏度问题,并详细分析了各参数的影响。可以得知哪些参数在设计、制造时需要严格控制,避免设计的盲目性,分析各随机参数对旋转机械故障特征的影响,可以得知在故障发生时,需要首先修改哪些参数,从而可以减小或根治该类故障发生。
The sensitivity and reliability of the rotor-bearing system with uncertain parameters are studied in normal working condition. Effects of parameter on the sensitivity and reliability, of rotor system are analyzed. We can know which parameters should be controlled strictly in designing and manufacturing, which parameters should be changed firstly to diminish the faults and we can know how to set the tolerance in designing by analyzing the useful Sensitivity of the normally operating rotor system with uncertain parameters.
出处
《机械制造与自动化》
2009年第5期60-63,共4页
Machine Building & Automation
关键词
转转机械
故障诊断
转子-轴承系统
灵敏度
可靠度
rotating machinery
fault diagnosis
rotor-bearing system
sensitivity
reliability
