摘要
针对强噪声干扰下轴承微弱故障特征难以通过单一的降噪或特征增强方法进行提取的问题,提出了一种基于时频谱分析的冲击能量增强的能量权重法,将噪声消除与特征增强2类方法进行融合,从而实现强噪声背景下微弱冲击的特征提取,并通过352226X2-2Z型圆锥滚子轴承内圈故障的试验验证了该方法在实际应用中的有效性。
Aimed at difficult extraction of weak fault features of bearing under strong noise interference by a single method of noise reduction or feature enhancement,an energy weighting method of impact energy enhancement based on time-frequency spectrum analysis is proposed.The methods of noise elimination and feature enhancement are combined to realize feature extraction of weak impact under strong noise background.The validity of the method in actual application is verified by test for inner ring fault of tapered roller bearing 352226X2-2Z.
作者
周亦人
邱小林
张兰
ZHOU Yiren;QIU Xiaolin;ZHANG Lan(Nanchang Institute of Technology,Nanchang 330044,China;Tianjin University,Tianjin 300350,China)
出处
《轴承》
北大核心
2020年第1期43-47,共5页
Bearing
基金
江西省教育厅科学技术研究项目(GJJ171039)
