文章基本信息

标题：Performance Degradation Modeling for Multi-State Element Considering Aging Factor
本地全文：下载
作者：Zhi-Qiang LI ; Ting-Xue XU ; Jun-Yuan GU 等
期刊名称：Mechanika
印刷版ISSN：1392-1207
出版年度：2018
卷号：24
期号：2
页码：260-267
DOI：10.5755/j01.mech.24.2.19183
语种：English
出版社：Kauno Technologijos Universitetas
摘要：With the increasing of service years, failure happens more frequently than before, which is consistent with the failure rate of equipment during the wear-out life period.On the base of continuous time Markov model for multi-state elements during the useful life period, aging factor is introduced to establish a non-homogenous continuous time Markov model during the wear-out life period.To obtain the reliability of a multi-state element, universal generating function is applied to combine its performance levels and probability functions.Through a combination operator determined by series-parallel logic relations, universal generating function of a multi-state system can be obtained.At last, a compressor of an engine is taken for example.The reliability of the system and its elements considering aging factor are relatively lower than that during the useful life period.And to maintain a reliability level at 80% under the demand of 50%, two days will be reduced from the planned maintenance cycle.
关键词：Markov model;aging factor;multi-state system;universal generating function