基于匹配追踪预处理的铁道车辆滚动轴承故障诊断方法  

Railway vehicle rolling bearing fault diagnosis method based on the matching pursuit pretreatment

作　　者：陈娜 杨绍普[3] 潘存治 

机构地区：[1]石家庄铁道大学信息科学与技术学院,石家庄050043 [2]北京交通大学机械与电子控制工程学院,北京100044 [3]石家庄铁道大学机械工程学院,石家庄050043

出　　处：《振动与冲击》2017年第21期132-137,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金(11372197);国家自然科学基金仪器专项(11227201);教育部新世纪优秀人才计划(NCET-13-0913)

摘　　要：提出一种基于匹配追踪预处理的轴承故障诊断算法,避免了传统共振解调方法对带通滤波的经验依赖,消除了传统方法在处理环节产生的互调干扰频率成分,能够精确提取损伤轴承的故障频率。通过在轮对跑合实验台上进行试验验证,结果显示比传统共振解调方法有一定优势,可以更有效提取轮对轴承的损伤故障。A bearing fault diagnosis algorithm was proposed based on the matching pursuit pretreatment. The method can avoid the dependence on the bandpass filtering in traditional envelope spectrum methods. The method also can remove the additional interference frequency components from the processing chain of traditional methods,and it can precisely extract the failure frequencies of damaged bearings. Through the experimental verification by using the real signals collected on a running-wheel bench,it is shown the method has some advantages over the traditional method of envelope spectrum,and it can effectively extract the failure features of wheel bearing damages.

关 键 词：匹配追踪 故障诊断 互调 轮对轴承 

分 类 号：TH165.3[机械工程—机械制造及自动化] TN911.6[电子电信—通信与信息系统]