Mechanical Condition Monitoring and Fault Diagnosis Based on Rough Set Theory
Gang An · Ceshi jishu xuebao · 2009
Taking the condition monitoring and fault diagnosis as the research background,the paper first presents the application of parameter choice based on rough set to the condition monitoring of diesel engine by using the attribute reduction function of rough set theory.The result shows that the information can't be lost after the reduction and the parameters are reduced as well as the next fusion calculation can be simplified.Secondly,the application of gray relation analysis based on rough set to the condition monitoring of gears is studied,and the comparison between the usual gray relation and the improved gray relation is made.The result shows that the diagnosis precision can be improved.