کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
482358 | 1446212 | 2006 | 14 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: An extended optimal replacement model of systems subject to shocks An extended optimal replacement model of systems subject to shocks](/preview/png/482358.png)
A system is subject to shocks that arrive according to a non-homogeneous Poisson process. As shocks occur a system has two types of failures: type I failure (minor failure) is rectified by a minimal repair, whereas type II failure (catastrophic failure) is removed by replacement. The probability of a type II failure is permitted to depend on the number of shocks since the last replacement. This paper proposes a generalized replacement policy where a system is replaced at the nth type I failure or first type II failure or at age T, whichever occurs first. The cost of the minimal repair of the system at age t depends on the random part C(t) and deterministic paper c(t). The expected cost rate is obtained. The optimal n∗ and optimal T∗ which would minimize the cost rate are derived and discussed. Various special cases are considered and detailed.
Journal: European Journal of Operational Research - Volume 175, Issue 1, 16 November 2006, Pages 399–412