Real-time Reliability Evaluation of Equipment based on Separated-phase Gamma Process
This paper presents a model to evaluate the real-time reliability of equipment whose degradation process is obviously separated into different phases. Equipments degradation process is usually modeled by stochastic process, since it can depict the real degradation process of equipment effectively. However, a hypothesis which states that the degradation process follows a single stochastic process is often proposed. When the degradation process is obviously separated into different phases, the hypothesis is no longer true. With respect to the separated-phase and monotonic degradation process, a separated-phase Gamma process is proposed. The realtime reliability function based on this degradation model is then obtained and is updated by Bayes method. Finally, the model has been applied to Liquid Coupling Device (LCD) and shows that it can depict the real degradation process of LCD effectively.
Separated-phase Gamma process Bayes method Real-time reliability evaluation Liquid coupling device (LCD)
Xiaolin Wang Bo Guo Zhijun Cheng
Information System and Management Dept.National Univ.of Defense Technology,Changsha 410073, China
国际会议
贵阳
英文
248-254
2011-06-12（万方平台首次上网日期，不代表论文的发表时间）