事后维修

随着内燃机的广泛使用和现代科学技术的发展，传统的事后维修和定时检测已不适应目前视情维修体制的要求；

With extensive applications of internal combustion engine ( ICE ) and developments of modern science and technology , the conventional breakdown maintenance and periodic monitor methods are not adapted to the demands of present maintenance system .

设备维修管理体制的变迁经历了事后维修和定期维修两个阶段，目前设备状态监测与故障诊断技术越来越受到人们的重视。

The managing system of equipment maintenance has gone through two phases : Breakdown Maintenance ( BM ) and Time-Based Maintenance ( TBM ) . And now the Condition Monitoring and Faults Diagnosis managing system of equipment maintenance is regarded more and more .

设备维护的需求促进了维修技术的日益完善，机械设备的维修方式主要经历了事后维修、定期维修、状态维修、改进性维修到最优混合维修方式5个主要阶段。

Demand for machine maintenance boost maintenance technology increasingly perfect .

解决了维修时间中预防维修和事后维修各自所占的最优比重问题。

The problem of optimal specific gravity between corrective and preventive maintenance time is solved .

事后维修、不坏不修，这种保障方式隐含着巨大的安全隐患。

While corrective maintenance , that is not bad no repair , implies huge security risk .

企业设备管理的一个重要发展趋势就是由预知维修、预防维修逐步替代传统的事后维修。

Gradual substitution of foreseen maintenance and preventive maintenance for traditional after maintenance represents significant progress in equipment management in the enterprise .

从20世纪50年代至今，国际上对设备管理的研究和实践大约经历了四个阶段：事后维修阶段、预防维修阶段、生产维修阶段和综合管理阶段。

Till now , there were four stages in the development of technical maintenance , after repair , beforehand repair , daily maintenance and integrated management .

长期以来，继电保护设备的维修方式是按以定期性检验为主，事后维修为辅的原则而进行的。

For a long time , the maintenance mode of relay protection equipments is based on the principle of mainly periodical inspection , supplemented by break maintenance .

设备维修先后经过事后维修、定期维修，到预知性维修几个阶段，而故障诊断技术也随之取得了很快的发展。

The development equipment maintenance has experienced run-to-breakdown maintenance , time-base preventive maintenance to predictive maintenance , while the fault diagnosis technology is also developed quickly with it .

另一方面，随着电子装备可靠性保障技术的发展，传统的事后维修可靠性保障技术逐步向视情维修保障技术发展。

On the other hand , with the development of reliability assurance technology for electronic equipment , traditional post-maintenance reliability assurance is gradually changing to Condition Based Maintenance .

但目前传统的维修策略还大多停留在定期维修和事后维修阶段，均缺乏对系统运行状态的判断和健康状况的分析。

But most of the traditional maintenance strategy also remain in the regular maintenance and subsequent maintenance , lacking accurate state judgment and health analysis on the running system .

目前，部队对装甲车辆的维修方式主要采用定期维修和事后维修，这两种维修方式都有一定的不足。

At present , in the armed forces , the maintenance of the armored vehicle are mainly regular maintenance and corrective maintenance , both of these maintenance have some deficiencies .

根据设备历史数据的采集和分析，利用统计建模原理，提出了面向调度设备事后维修时间分布的预测方法。

By analyzing historical data , a method on the distribution forecasting of equipment maintenance time is put forward for production scheduling , with the usage of statistic modeling theory .

采用蒙特卡洛方法对可雉修系统的可靠性进行模拟，讨论了元件的抽样方法，给出了事后维修的串联可维修系统的故障率随时间的变化而变化的曲线。

This paper simulate the repairable system with Monte Carlo method , the sample method of the life is discussed , and the life distribution of series system is derived .

对于这种复杂系统，尤其是其寿命周期，预防维修时间及事后维修时间为离散分布时，其最佳预防维修周期难以用一般方法求得。

The optimum preventive maintenance cycle of these components usually can not be obtained with common ways , especially when the life cycle , preventive maintenance time and subsequent maintenance time present dispersed distribution .

该技术促进了设备维修体制由传统的事后维修方式转变为预防维修方式，逐步发展到视情维修方式。

This technology promoted the equipment service system transformation , which caused the equipment service system great changes from the traditional Run-to-Breakdown Maintenance way to Time-based Preventive Maintenance way and even Condition-based Maintenance way .

而机务管理部门对设备的维修管理，目前做法也只是通过厂家所给的说明书，有实船经验的船员，以及国际或国内公约和规则的要求，大都采用事后维修和定期维修的方式。

But the control section of the equipment service management , at present the procedure also depends on the instruction , booklet which given by the factory , sometime on real ship experience crew , as well as international or domestic law and pact .

本文用故障分析理论做指导，依据设备故障重要度对设备进行了分类，对设备的事后维修、预防维修和状态维修进行了比较，利用故障模式对设备维修方式的应用进行了选择。

As the guide with the fault analysis theory the thesis classifies the equipments , contrasts the Breakdown Maintenance 、 the Preventive Maintenance and the Condition Based Maintenance of the equipment by the importance of the equipment fault , and chooses the maintaining way by fault model .

研究结果表明，主动维护技术的重点是对液压系统故障进行事前的防护，而不是事后的维修。

The research result shows that the important point of the proactive maintenance is the prevention of the fault of the hydraulic system in advance , instead of the maintenance afterwards .