基于转子实验台的典型故障信号模拟与分析  

Analysis of Vibration Signals of Two Typical Faults Simulated on a Rotor Test Rig

作　　者：周丽芹[1] 刘建丽[1] 王立红[1] 

机构地区：[1]中国海洋大学工程学院,青岛266071

出　　处：《振动．测试与诊断》2004年第2期131-134,共4页Journal of Vibration,Measurement & Diagnosis

摘　　要：介绍了一种通过转子实验台模拟转子不平衡和摩擦两种故障来获取该典型故障信号的方法 ,并对信号的产生进行了机理分析 ,给出了典型信号在正常和故障两种不同情况下的时域和频域分析图。将实验结果与理论分析相结合 ,验证了旋转机械两种典型振动故障的识别特征 。This article provides a method for simulating two typical rotor faults on a rotor test rig:rotor unbance fault and rotor radical friction fault.The features of the vibration signals generated by the faults and the mechanism of producing such features are analyzed.Processing results of the signals under normal and fault conditions are given both in the time domain and in the frequency domain.Both test and analysis get identical diagnostic features of the two faults,which would enrich the database of fault diagnosis of rotating machinary.

关 键 词：故障 振动 转子实验台 时域波形 幅值谱图 轴心轨迹 

分 类 号：TH113[机械工程—机械设计及理论] TP206[自动化与计算机技术—检测技术与自动化装置]