The OCS is a crucial part of high-speed railway,and its reliability is of great significance to the safe and stable operation of high-speed trains.In order to improve OCS reliability,the preventive maintenance shall be carried out while taking account of the economic efficiency.With reference of age reduction factor and use of the Weibull distribution,the OCS reliability is described.In accordance with the different maintenance methods taken for each maintenance period,the average reliability of part of OCS is obtained,thus the overall reliability of OCS is obtained as well.Through analyzing of maintenance costs of OCS,the optimized model based on the reliability and maintenance cost is obtained.The simulation results show that the system reliability is increased along with the increase of maintenance intervals,but the costs are increased accordingly.The optimized maintenance strategy model obtained through derivation is available for making of periodic preventive maintenance strategy for OCS.
关键词
接触网系统/预防性维修/可靠性/维修成本/维修策略优化
Key words
OCS/preventive maintenance/reliability/maintenance cost/optimization of maintenance strategy
维普
万方数据