کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1134337 | 956063 | 2012 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A bivariate optimal imperfect preventive maintenance policy for a used system with two-type shocks A bivariate optimal imperfect preventive maintenance policy for a used system with two-type shocks](/preview/png/1134337.png)
This article studies an optimal imperfect preventive maintenance policy based on a cumulative damage model for a used system with initial variable damage. The used system is subject to shocks occurring to a non-homogeneous Poisson process, and suffers one of two types of shocks with stochastic probability: type-I shock (minor) yields a random amount of additive damage of the system, or type-II shock (catastrophic) causes the system to fail. A bivariate preventive maintenance schedule (n, T) is presented in which the system undergoes preventive maintenance at a planned time T and the nth type-I shock, or corrective maintenance at any type-II shock and the total damage exceeds a threshold level, whichever occurs first. The optimal preventive maintenance schedule which minimizes the expected cost rate is derived analytically and discussed numerically.
► We analyze a bivariate optimal imperfect preventive maintenance policy for a used system with two-type shocks.
► We show the existence and uniqueness properties of the optimal preventive maintenance policy.
► The policy is based on number of minor shock and system age for a given cumulative damage limit K.
► The model provides a general framework for analyzing the maintenance policies.
Journal: Computers & Industrial Engineering - Volume 63, Issue 4, December 2012, Pages 1227–1234