Profit analysis of a two-unit similar cold standby system with endurance time and preventive maintenance

Abstract

The current study examines the profit analysis of a similar cold standby system with endurance time and preventive maintenance. In order to achieve this goal, we consider two categories of repair facilities in this model: primary repair facilities and specialized repair facilities. Primary repairers are usually referred to as general repairers and have usually stayed at the restoration facility, if it is not able to complete the repair in time, then specialist repairmen are called for complex repair. The system is sent for preventive maintenance once the maximum operation time has elapsed. Using the Semi-Markov process and Markov regenerative point approach, reliability characteristics such as MTSF, availability and busy period of repairmen are obtained. Further, the profit analysis is performed. The tabular and graphical representations are also done concerning the failure rate.