齿轮箱故障诊断的频响修正法研究  

Study on Fault Diagnosis of Gearbox Based on FRF-Modified Method

作　　者：张志斌 王菁 高韬[3] 

机构地区：[1]河北省石家庄市93469部队 [2]河北省石家庄市发展和改革委员会信息中心 [3]华北电力大学自动化系

出　　处：《工业技术创新》2016年第3期315-317,共3页Industrial Technology Innovation

基　　金：国家自然科学基金(51306058;71102174);河北省科技支撑计划重点项目(15212204D)

摘　　要：传统的齿轮箱故障诊断是通过在箱体上采集振动响应信号进行分析实现的,而振动响应信号是箱体内部各零部件对箱体的激励信号通过不同的传递路径叠加而成的复合振动信号。由于传递路径的影响,使得振动响应信号的变化不能如实地反映激励信号的变化,进而影响最终的诊断效果。本文提出基于频响修正的齿轮箱故障诊断方法,通过对振动响应信号进行频响修正以消除传递路径的影响,不仅提高了诊断结果的准确性和有效性,而且显著提升了对早期故障的诊断能力。Traditional fault disgnosis of gearbox is based on the analysis of vibration signals collected from the gearbox.Vibration signals can not fully reflect the features of the excitation signals for the cause of the effects added by the passages.This can sometimes affects the accuracy of the result of the traditional fault diagnosis method.A FRF-modified method has been developed in this paper to elliminate the bad effects added on the excitation signals by the passages and to improve the the accuracy of the fault diagnosis of gearbox.Experiments show that the proposed method can improve the accuracy of the fault diagnosis even in early stage.

关 键 词：频响修正 齿轮箱 故障诊断 

分 类 号：TN911.72[电子电信—通信与信息系统]