基于LabVIEW的磁轴承振动监测及故障诊断系统设计  

Design of Vibration Monitoring and Fault Diagnosis System of Magnetic Bearing Based on LabVIEW

作　　者：范文[1] 孙冬梅[1] 袁倩[1] 

机构地区：[1]南京工业大学电气工程与控制科学学院,江苏南京211816

出　　处：《仪表技术与传感器》2016年第4期60-62,66,共4页Instrument Technique and Sensor

基　　金：国家自然科学基金(51277092);江苏省人事厅江苏省博士后资助计划(1201012C)

摘　　要：针对磁轴承运行中的机械振动故障,文中研究一套基于虚拟仪器(LabVIEW)的磁轴承振动监测及故障诊断系统,提供了系统的总体方案和实现的具体过程。将虚拟仪器技术与故障诊断技术相结合并应用于磁轴承的振动检测,在故障诊断中加入小波分析、HHT、基于峭度的概率密度算法、轴心轨迹法、信息融合算法等诊断方法并通过LabVIEW编程开发,使该系统可高效地实现对测量结果的实时显示、处理、存储,并能准确判断和分析故障。According to the mechanical vibration fault of magnetic bearing in operation,the vibration monitoring and fault diagnosis system of magnetic bearing based on virtual instrument technology was developed and the overall scheme of system and specific implementation process was provided. Combining virtual instrument technology with fault diagnosis technology,they were applied to the vibration test of magnetic bearing. The wavelet analysis,HHT,probability density algorithm based on kurtosis,axis locus method diagnosis method,and information fusion in fault diagnosis were added in this paper. Furthermore,all data processing are programmed based on Lab VIEW. Therefore,the system can efficiently realize real-time display,processing,storage and can judge and analyze the fault accurately.

关 键 词：磁轴承 虚拟仪器 振动监测 故障诊断 轴心轨迹 信息融合 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]