Fault Tree Based Fault Diagnosis of Unidirectional Traveling Wire-EDM Machine Tools
In order to improve the service life and processing efficiency of unidirectional traveling wire-EDM machine tools,reduce and prevent the occurrence of fault events,improve the working efficiency of machine tools.Fault tree analysis software was applied to establish a fault tree model for its machine tools,and qualitative,quantitative and Monte Carlo simulation analyses were performed to determine the failure modes of the uinidirectional traveling EDM machines.The qualitative analysis yields 93 minimum cut sets,the quantitative analysis yields 100 pieces of bottom event structure importance priority order,and the Monte Carlo simulation analysis yields 100 pieces of bottom event mode importance priority order.The most prioritised events of unidirectional traveling wire-EDM machines failures are comprehensively derived,and the types of bottom events that have the greatest impact on the work of the machine are further analysed and solutions or preventive measures are put forward,which are direct references to the failure studies of other series of machine tools and even other types of machine tools.
NETL
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万方数据
