TY  - JOUR
AB  - Purpose– The purpose of this paper is to investigate age replacement policies for two-component parallel system with stochastic dependence. The stochastic dependence considered, is modeled by a one-sided domino effect. The failure of component 1 at instant t may induce the failure of component 2 at instant t+τ with probability p1→2. The time delay τ is a random variable with known probability density function hp1→2(.). The system is considered in a failed state when both components are failed. The proposed replacement policies suggest to replace the system upon failure or at age T whichever occurs first. Design/methodology/approach– In the first policy, costs and durations associated with maintenance activities are supposed to be constant. In the second replacement policy, the preventive replacement cost depends on the system’s state and age. The expected cost per unit of time over an infinite span is derived and numerical examples are presented. Findings– In this paper and especially in the second policy, the authors find that the authors can get a more economical policy if the authors consider that the preventive replacement cost is not constant but depends on T. Originality/value– In this paper, the authors take into account of the stochastic dependence between system components. This dependence affects the global reliability of the system and replacement’s periodicity. It can be used to measure the performance of the system et introduced into design phase of the system.
VL  - 21
IS  - 3
SN  - 1355-2511
DO  - 10.1108/JQME-03-2014-0013
UR  - https://doi.org/10.1108/JQME-03-2014-0013
AU  - Malki Zouheir
AU  - Ait-Kadi Daoud
AU  - Ouali Mohamed-Salah
PY  - 2015
Y1  - 2015/01/01
TI  - Age replacement policies for two-component systems with stochastic dependence
T2  - Journal of Quality in Maintenance Engineering
PB  - Emerald Group Publishing Limited
SP  - 346
EP  - 357
Y2  - 2024/04/23
ER  -