A Generalized Periodic Preventive Maintenance Model With Virtual Age for a System Subjected to Shocks

作者：Sheu Shey Huei^*; Chang Chin Chih; Chen Yen Luan

来源：Communications in Statistics - Theory and Methods, 2010, 39(13): 2379-2393.

DOI：10.1080/03610921003778142

• Maintenance
• Minimal repair
• Optimization
• Replacement policy
• Virtual age

This article presents a periodic preventive maintenance (PM) model for a system subjected to random shocks. A system is subject to shocks that arrive according to a non homogeneous Poisson process. As shocks occur, the system experiences one of two types of failures: Type-I failure (minor) and Type-II failure (catastrophic). Type-I failures are rectified by a minimal repair. In a PM period, the system is preventively maintained following the occurrence of a Type-II failure or at age T, whichever takes place first. At the Nth PM, the system is replaced. An approach that generalizes the existing studies on the periodic PM policy is proposed. Taking the shock number-dependent failure type and the virtual age into consideration, the object consists of determining the optimal PM and replacement schedules that minimize the expected cost per unit of time, over an infinite time horizon.

• 出版日期2010