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出 处:《机电工程》2011年第11期1319-1323,共5页Journal of Mechanical & Electrical Engineering
摘 要:为评估柴油机监控系统的可靠性,提出了基于马尔科夫过程的柴油机监控系统可靠性评估方法。总结出了系统的功能结构框图,通过引入Markov过程描述系统状态从而建立了系统可靠性模型。通过不同方式获得了部件故障率参数。利用Matlab数值计算分析了部件故障率和维修率变化对系统可靠度及可用度的影响,得出了对系统可靠性有较大影响的部件。研究结果表明,部件故障率与修复率的比值对系统可用度的影响较大。To assess reliability of the diesel engine monitoring system,reliability assessment method for diesel engine monitoring system based on Markov process was proposed. The system's function structure was extracted,and system reliability model was established by taking Markov process to describe system state. Component failure rate parameter was collected by different ways. The influence of component failure rate and repair rate changes on system reliability and availability was analyzed with Matlab numerical evaluation,then component that influenced system reliability much was obtained. The results show that ratio of failure rate to repair rate impacts on system availability is drawn.
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