An Extended Periodic Imperfect Preventive Maintenance Model With Age-Dependent Failure Type

作者：Sheu Shey Huei^*; Chang Chin Chih

来源：IEEE Transactions on Reliability, 2009, 58(2): 397-405.

DOI：10.1109/TR.2009.2020103

• Improvement factor
• maintenance optimization
• minimal repair
• preventive maintenance
• replacement policy

This paper presents a generalized periodic imperfect preventive maintenance (PM) model for a system with age-dependent failure type. The imperfect PM model proposed in this study incorporates improvement factors vis-a-vis the hazard-rate function, and effective age. As failures occur, the system experiences one of the two types of failure: type-I failure (minor), and type-II failure (catastrophic). Type-I failures are rectified with 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 age-dependent failure type into consideration, the objective consists of determining the optimal PM & replacement schedule that minimize the expected cost per unit of time, over an infinite horizon.

• 出版日期2009-6