滚动轴承故障监测诊断中的自适应滤波算法.pdf

ISSN 1000- 3762 20115 47- 50 CN41- 1148/TH Bearing 2011, No. 5 滚动轴承故障监测诊断中的自适应滤波算法 席玉洁, 马波, 冯坤 ( 北京化工大学 诊断与自愈工程研究中心, 北京 100029) : , , , , , : ; ; ; : TH 133. 33; TP387 : B : 1000- 3762( 2011) 05- 0047- 04 A dap tive F iltering A lgorithm in F au lt D iagnosis of Rolling Bearings X IYu- jie, MA Bo, ENG Kun (D iagnosis and Self- recovery Engineering Research Center, Beijing University of Chem icalTechnology, Beijing 100029, China) A bstrac t: The filter process of rolling bearing fau lt d iagnosis is stud ied and an adaptive optmi al filtering algorithm is proposed, wh ich is based on kurtosis index. The results of the expermi ent and engineering show that automatic filtering process can be achieved by the adaptive optmi al filtering algorithm, giving the accurate fau lt diagnosis of rolling bear- ings. Comparing the effect of bearing fau lt diagnosis, it is illustrated that adaptive optmi al filtering algorithm is much better than the fixed filtering and wavelet packet transform filter algorithm. K ey w ord s: rolling bearing; fau lt diagnosis; kurtosis; adaptive filtering , , , , , [4] , , , , , , [ 5] , , [ 1- 2], , , , , , 1 基本理论 [ 3] Morlet , 1. 1 , , Morlet , : 2010- 12- 01