Condition-Based Maintenance for Systems with Dependent Failure Modes

Abstract

Abstract Many complex maintainable systems are subject to multiple dependent failure modes. In this research, we introduce a new model for modeling the stochastically dependent time-to-maintenance and time-to-failure of different failure modes. The model is then utilized to obtain the optimum Condition-Based Maintenance (CBM) schedules that maximizes the system availability over its life cycle, or, minimizes the long-run cost per unit time. The proposed method efficiently solves the condition-based maintenance-scheduling problem for system with multiple dependent failure modes, which has not been well addressed in the literature.