相干分析方法及轴悬式机车电机刷架损坏原因的研究  

Coherence Analysis and Research on the Damage Cause of Traction motor Brush frame in Axle suspension Locomotive

作　　者：李国顺[1] 臧其吉[1] 陈厚嫦[1] 孙琼[1] 

机构地区：[1]铁道部科学研究院

出　　处：《中国铁道科学》1997年第2期61-68,共8页China Railway Science

摘　　要：机车现场试验测量到的振动信号是具有丰富频率范围的随机信号，如何从中获取有用的信息，分析引起振动的原因，则必须对测量信号作进一步的计算分析。对相干分析方法的基本原理作了简单的介绍，并利用此方法对轴悬式机车电机刷架因振动过大而损坏的原因——振动的能量来源进行了定量的分析，并就齿轮啮合振动和轮轨接触振动的能量传递特性进行了探讨。The vibration signal obtained in the field test of locomotive is a random signal with abundant frequency ranges.In order to extract the useful information therefrom and analyze the cause of vibration,we must make further calculation and analysis with the signal.This paper briefly introduces the basic principle of coherence analysis method,and applies this method to make a quantitative analysis of the damage cause the source of vibration,which leads to by undue vibration to axle suspension locomotive motor brush frame.In addition,a meaningful discussion is made on the energy transmission property of gear engaging vibration and rail/wheel contact vibration.

关 键 词：电力机车 牵引电机 刷架 损坏分析 

分 类 号：U269.6[机械工程—车辆工程]