载货汽车最优二级维护周期的研究

On the Optimum Class Ⅱ Maintenance Period of Truck

本文利用更新理论、可靠性理论,建立汽车最优二级维护周期的数学模型,可使车辆的单位行驶里程(或时间)维修费用最低。研究中采用参数估计与假设检验方法并编写计算机程序,在结合载货汽车运输生产实际,分析、处理、研究大量样本数据的基础上,得出东风EQ1090E型载货汽车运行故障规律符合Weibull分布的结论,并综合多方面因素,给出该型汽车的最优二级维护周期。

Based on the renewal theory and reliability theory, a mathematical model that deciding the optimum class II maintenance period of truck is set up in the paper which can minimize the cost of maintenance and repair per drive mileage (or time). By taking the truck transport production practice and a large number of sample data into account, a failure law of the EQ1090E truck, which obey the Weibull distribution, is obtained with the parameter estimation, hypothesis test methods and their computer progiams as guide. Finally, the optimum class II maintenance period of EQ1090E truck is proposed involving a lot of factors concerned.