旋转机械油膜轴承故障诊断的研究  

The research of oil turbulence fault of large rotating machinery

作　　者：楼建忠[1] 叶俊[1] 董一嘉[1] 

机构地区：[1]浙江机电职业技术学院机械工程分院,杭州310053

出　　处：《现代制造工程》2014年第3期14-16,22,共4页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(50205025);浙江省博士后科研择优资助项目(BSH1301020);浙江机电职业技术学院孵化基金项目(A-0273-13-001)

摘　　要：为解决旋转机械油膜涡动故障较难诊断的问题,通过建立油膜涡动故障模型,利用实验室Bently转轴试验台设置油膜涡动故障状态,获得轴承在油膜涡动状态下的主要振动特征。结果显示,转轴轴心在油膜涡动时的时域波形变为原来的1/2,涡动频率大约为工作频率的1/2左右,转轴轴心转动半个周期。综合得出,试验结果与理论分析较为接近,为旋转机械油膜涡动故障诊断提供了一定的实践依据。In order to solve the problem of rotating machinery oil turbulence is more difficult to diagnose, through the establish- ment of oil turbulence fault model, set oil turbulence fault state in Bently rotor test rig to get oil turbulence vibration characteris- tics. The results show that the time domain waveform diagram of the rotor in the oil turbulence becomes 1/2 of the original wave- form. The turbulence frequency occurs in a frequency of about 1/2 of the working frequency. The axis rotates about a half cycle. All in all, the experimental results and the theoretical analysis is closer,it provides a theoretical basis for oil turbulence of rotating machinery fault diagnosis.

关 键 词：旋转机械 Bently试验台 油膜涡动 故障诊断 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]