设备故障过程的建模与仿真研究  

Modeling of failure process of an equipment and its simulation study

作　　者：郑睿[1] ZHENG Rui(School of Public Economy and Management,Shanghai University of Finance and Economics,Shanghai 200433,China)

机构地区：[1]上海财经大学公共经济与管理学院,上海200433

出　　处：《上海理工大学学报》2020年第4期399-403,共5页Journal of University of Shanghai For Science and Technology

基　　金：国家自然科学基金资助项目(71471116)。

摘　　要：由于设备劣化是一个随机过程,维修计划制定主要依据维修工程师的经验或厂家说明书,从而导致维修不足和维修过剩的问题。为了解决这一问题,首先应用故障记录数据和检查数据,建立了缺陷发生为泊松过程,检查完全情况下的时间延迟模型。其次建立设备故障发生过程的计算机模拟仿真系统,仿真结果证实了所建时间延迟模型的正确性。故障建模与仿真系统,不仅能直观显示设备故障过程,揭示故障机理;而且能解决故障记录缺乏下验证故障模型正确性的难题。同时,故障过程模型为维修计划制定提供了科学决策依据。The failure of an equipment is usually a random process,so the preventive maintenance(PM)interval of the equipment is mainly formulated by maintenance engineers according to their experiences,or by the specification of PM interval given by the manufacturing enterprise,which results into two main problems of over maintenance and insufficient maintenance.In order to optimise the preventive maintenance interval,a time delay model,in the condition of Poisson process defects and perfect inspection was established based on the maintenance data of recorded failures and inspection data.Then the failure process in case of perfect inspection was simulated by computer programs.The simulation results prove the validity of the established time delay model.The established time delay model and the simulation system demonstrate intuitively the failure process,reveal clearly the failure mechanism,and solve the difficulty of model validation in case of no failure data record.The failure process model is benefitial to make maintenance decision.

关 键 词：时间延迟 预防维修 仿真 故障过程 

分 类 号：F224.7[经济管理—国民经济] TB472[一般工业技术—工业设计]