In: IEEE Transactions on Reliability, Vol. 49, No. 1, pages 88-98. March 2000.
Abstract: A new condition-based maintenance model for a system, subject to deterioration-failures and to Poisson-failures, is presented. After an inspection, based on the degree of deterioration, a minimal maintenance or a major maintenance is performed, or no action is taken. Deterioration failures are restored by major repairs; Poisson failures are restored by minimal repairs. Major maintenance or major repair restores the system to ``good as new'', while minimal maintenance restores the system one stage. Generalized Stochastic Petri Nets are used to represent and analyze the model, which represents a condition-based maintenance strategy. Based on maximization of the system throughput, an optimal inspection policy within this strategy and optimal inter-inspection time are obtained. The effects of inspection, maintenance, and repair parameters are investigated. For a given inspection parameter, a 3-region diagram identifies the effectiveness of an inspection policy based on minimal maintenance, major maintenance, and major repair parameters.
Keywords: Condition-based maintenance; deterioration failure; Generalized Stochastic Petri Nets; flexible manufacturing cell; inspection; major maintenance; major repair; minimal maintenance; Poisson failure.