CAJ | 학술논문

针对航空发动机突发故障，构建了一种基于相似性传播聚类的突发故障诊断方法。首先利用突发故障历史监测数据建立突发故障数据库，通过相似性传播聚类找到数据库中所有突发故障数据的中心，当诊断新采集数据的突发故障类型时，通过相似性传播聚类找到当前新采集数据的中心，经过与突发故障数据库中的数据中心进行匹配判断该新采集数据所对应的突发故障类型。将该突发故障诊断方法应用到发动机转子实验台的突发故障诊断中，仿真和实验结果表明该方法的可行性，并通过与其他方法比较，表明该方法具有诊断时间短和误差小的优点。
침대항공발동궤돌발고장，구건료일충기우상사성전파취류적돌발고장진단방법。수선이용돌발고장역사감측수거건립돌발고장수거고，통과상사성전파취류조도수거고중소유돌발고장수거적중심，당진단신채집수거적돌발고장류형시，통과상사성전파취류조도당전신채집수거적중심，경과여돌발고장수거고중적수거중심진행필배판단해신채집수거소대응적돌발고장류형。장해돌발고장진단방법응용도발동궤전자실험태적돌발고장진단중，방진화실험결과표명해방법적가행성，병통과여기타방법비교，표명해방법구유진단시간단화오차소적우점。
Aiming at aero-engine faults,an abrupt fault diagnosis method based on affinity propagation clustering was proposed.Abrupt fault historical monitoring data were used to establish faults database.Through affinity propagation clustering,all the exemplars of abrupt faults in the database were found and the affinity propagation clustering was applied once again to find the exemplar of the new collected data.The fault type was then identified by matching the center with the centers obtained from the faults database.The method was used in the aero-engine abrupt fault diagnosis.The simulation and experiment results show that the method is feasible to diagnose abrupt fault,and compared with other methods,it needs shorter time consuming and produces lower error.