摘要
针对随机失效阈值下的退化可靠性分析问题,利用可能性分布表征失效阈值中的不确定性,提出了一种退化失效建模的可靠性分析方法,解决了预测模型中不确定性的传递问题。通过陀螺仪剩余寿命预测的案例研究,阐明了文中方法的有效性。
Degradation reliability prediction under stochastic failure threshold was studied. The explicit expression of reliability was derived, by charactering the uncertainty of failure threshold with probability distribution. Then, a possibilistic method for reliability modeling and prediction for degrading components was presented, by use of possibility distribution.
作者
姜伟伟
姜学鹏
JIANG Weiwei;JIANG Xuepeng(The 91049th Unit of PLA, Qingdao Shandong 266400, China;Naval Aviation University, Yantai Shandong 264001, China)
出处
《海军航空工程学院学报》
2018年第2期243-247,252,共6页
Journal of Naval Aeronautical and Astronautical University
关键词
退化模型
随机失效阈值
不确定性
可能性方法
degradation models
stochastic failure threshold
uncertainty
possibilistic method