Time-Dependent Reliability Model of Components with Strength Degradation Based-on Gamma Process
Jindong Li@Shenyang Machine Tool (Group) Design & Research Institute Co., Ltd Shenyang, China In the evaluation of structural reliability, failure is defined as the event in which stress exceeds a strength that is liable to deterioration. A method is presented to consider stochastic loading and strength degradation for computing the time-dependent reliability of a structural component. The deterioration process is modeled as a gamma process, which is a stochastic process with independent nonnegative increments having a gamma distribution with identical scale parameter. The stochastic process of loads is generated by a Poisson process. Numerical analysis of example shows this time-dependent reliability model provides accurate results.
Gamma process Poisson process time-dependent reliability
Ying Wu Liyang Xie Ningxiang Wu Jindong Li
School of Mechanical Engineering & Automation Northeastern University Shenyang, China Shenyang Machine Tool(Group) Design & Research Institute Co.,Ltd Shenyang China
国际会议
贵阳
英文
363-368
2011-06-12(万方平台首次上网日期,不代表论文的发表时间)