转换开关不可靠的贮备系统可靠性分析

发布时间：2018-01-10 18:07

本文关键词：转换开关不可靠的贮备系统可靠性分析　出处：《兰州理工大学》2016年硕士论文　论文类型：学位论文

【摘要】：贮备系统和串联系统是可靠性数学理论中两种非常重要的典型系统.在贮备系统中,当工作部件发生故障时,系统可由转换开关切换到备用部件继续工作,在一定程度上系统具有更高的可靠度.在串联系统中,所有部件组成串联结构,当模型中任一部件发生故障时,系统也会随即进入故障状态停止工作.在实际生产生活中,大多数比较复杂的机械系统工作时,需要不同部件同时工作才能完成预定功能,因此从功能逻辑关系出发,复杂系统最终可以等效为由若干个子系统组成的串联系统.故可以考虑对复杂设备中可靠性较低的部件留有备件的方法,使系统具备更高的可靠性,保障系统的正常工作.本文主要研究了由三不同型部件组成的温贮备系统和串联温贮备系统的可靠性.模型一:转换开关是贮备系统中贮备部件替换失效工作部件的重要组成部分.基于开关并不完全可靠的情形,对由三个不同型部件组成的温贮备可修系统的可靠性进行研究.分析出系统所有可能的状态,利用Markov型可修系统的研究方法求出系统的可靠性指标.模型二:基于转换开关不完全可靠的情形,对由三不同型部件组成的串联温贮备可修系统的可靠性予以分析.在模型假设条件下,利用时齐Markov过程理论和Laplace变换的方法对系统的可靠性指标进行求解.最后,通过模型中参数关系的研究,推导出模型间的递推关系.
[Abstract]:Standby system and series system are two important typical system reliability theory. In the standby system, when the working component fails, the system can switch is switched to the spare parts to work, to a certain extent the system has higher reliability. In the series system, all components in series structure when any parts in the model, when a fault occurs, the system will then enter the fault state to stop working. In the actual production of life, the most complicated mechanical system work, need different parts of work at the same time to complete the intended function, so from the logic relation of complex systems can be series system by an equivalent number of sub system. It can be considered. A method for spare parts with low reliability of components in complex devices, make the system more reliable, security system Work properly. This paper mainly studies the reliability of warm standby system composed of three different components and series of warm standby system. Model: switch is an important part of standby unit standby system in replacing the invalid work parts. The switch does not completely reliable case based on the reliability research of warmstandby consists of three different components of repairable system. Analysis of all the possible state of research for repairable system using Markov for system reliability index. The model two: not completely reliable switch based on the circumstances, to analyze the reliability by three different components series warm standby repairable system. Model assumptions, using the method of homogeneous Markov process theory and Laplace transform of the system reliability are solved. Finally, through the study of the relationship between the parameters in the model, The recursive relation between the models is derived.

【学位授予单位】：兰州理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：O213.2

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