DCM Oriented Operation and Maintenance Expense Model for High-Speed Train

Abstract

Manufacturing is in transition to manufacturing service industry and Life Cycle Cost (LCC) becomes an important considerate index. Operation & Maintenance Expense (OME) is the most complicated one among all the LCC expense units. Besides, it also accounts for the largest proportion. Authors proposed a LCC modeling idea, which is Expenses attached to the process, while process consumes resourses. Authors take the air-supply and brake system of high-speed train as example, conduct the system’s maintenance FMEA and risk assessment based on dependability. According to assessment results, authors match the system’s important maintenance projects, including brake control system, main air compresser etc., with their respective maintenance mode. The paper put forward the expense model of one specific maintenance work on basis of its resourse structure. Based on the main air compresser’s dependability, authors predicted its Corrective Maintenance (CM) repair times by using Monte Carlo simulation. Combined with the repair times of Preventive Maintenance (PM) and condition-based maintenance, authors obtained high-speed train’s OME model. This method has important significance for modeling the high-speed train’s LCC. Besides, it may support the expense reseach for large equipments with complicated process.