基于RCM理论下精细化工厂重要设备的维护研究
发布时间：2019-06-05 05:50
【摘要】：伴随着全球商业竞争形势日益严峻,设备维护与可靠性分析在企业中的地位日趋突出。本文首先简要阐述了设备维修及可靠性的研究现状,之后介绍了RCM理论,对系统可靠性分析进行了研究和探讨,对预防维修周期的确定进行了决策和优化。 本文选取离心泵为精细化工厂内代表性设备,通过对离心泵系统进行结构分析,得出了离心泵系统产生故障的各种基本事件,在此基础上,结合系统可靠性理论,采用故障树分析法,建立了离心泵系统的故障树,并对系统故障树进行了定性分析,得出了系统的最小割集;利用相关方法得到了故障树子事件的失效率,以此为基础对系统故障树进行了定量分析,并求解得出了运转周期中某一时刻的顶事件失效率;对系统故障树进行了重要度分析,得出了影响系统可靠性的薄弱环节。之后,本文针对工厂离心泵设备的可靠度模型,以可用度最大和总费用最小两个经济指标为原则,分别求解最佳预防维修周期,并进一步在经济效益指标的基础上,引入可靠性指标,以可靠度为约束条件,重新计算了离心泵设备的最佳预防维修周期。 本文的故障树分析法对企业内离心泵设备的维修具有理论指导意义;本文的设备维护周期研究对企业内设备维护周期的制定提供了参考。
[Abstract]:With the increasingly serious situation of global commercial competition, equipment maintenance and reliability analysis play an increasingly prominent role in enterprises. In this paper, the research status of equipment maintenance and reliability is briefly described, then the RCM theory is introduced, the reliability analysis of the system is studied and discussed, and the decision and optimization of the determination of preventive maintenance cycle are made. In this paper, the centrifugal pump is selected as the representative equipment in the fine chemical plant. Through the structural analysis of the centrifugal pump system, various basic events of the centrifugal pump system fault are obtained. On this basis, combined with the system reliability theory, The fault tree of centrifugal pump system is established by using fault tree analysis method, and the system fault tree is qualitatively analyzed, and the minimum cut set of the system is obtained. The failure rate of the fault tree sub-event is obtained by using the correlation method, on the basis of which the quantitative analysis of the system fault tree is carried out, and the failure rate of the top event at a certain time in the operation cycle is obtained. The importance of the system fault tree is analyzed, and the weak links that affect the reliability of the system are obtained. After that, according to the reliability model of factory centrifugal pump equipment, based on the principles of maximum availability and minimum total cost, the optimal preventive maintenance cycle is solved respectively, and further on the basis of economic benefit index, The reliability index is introduced and the optimal preventive maintenance period of centrifugal pump equipment is recalculated with reliability as the constraint condition. The fault tree analysis method in this paper has theoretical guiding significance for the maintenance of centrifugal pump equipment in the enterprise, and the research on the equipment maintenance cycle in this paper provides a reference for the establishment of the equipment maintenance cycle in the enterprise.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH186
本文编号：2493302
[Abstract]:With the increasingly serious situation of global commercial competition, equipment maintenance and reliability analysis play an increasingly prominent role in enterprises. In this paper, the research status of equipment maintenance and reliability is briefly described, then the RCM theory is introduced, the reliability analysis of the system is studied and discussed, and the decision and optimization of the determination of preventive maintenance cycle are made. In this paper, the centrifugal pump is selected as the representative equipment in the fine chemical plant. Through the structural analysis of the centrifugal pump system, various basic events of the centrifugal pump system fault are obtained. On this basis, combined with the system reliability theory, The fault tree of centrifugal pump system is established by using fault tree analysis method, and the system fault tree is qualitatively analyzed, and the minimum cut set of the system is obtained. The failure rate of the fault tree sub-event is obtained by using the correlation method, on the basis of which the quantitative analysis of the system fault tree is carried out, and the failure rate of the top event at a certain time in the operation cycle is obtained. The importance of the system fault tree is analyzed, and the weak links that affect the reliability of the system are obtained. After that, according to the reliability model of factory centrifugal pump equipment, based on the principles of maximum availability and minimum total cost, the optimal preventive maintenance cycle is solved respectively, and further on the basis of economic benefit index, The reliability index is introduced and the optimal preventive maintenance period of centrifugal pump equipment is recalculated with reliability as the constraint condition. The fault tree analysis method in this paper has theoretical guiding significance for the maintenance of centrifugal pump equipment in the enterprise, and the research on the equipment maintenance cycle in this paper provides a reference for the establishment of the equipment maintenance cycle in the enterprise.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH186
【引证文献】
相关硕士学位论文 前1条
1 付兴海;基于诊断信息的空压机运行可靠性评估与RCM的改进[D];大连理工大学;2013年
，本文编号：2493302
本文链接：https://www.wllwen.com/kejilunwen/jixiegongcheng/2493302.html
