基于变采样分辨率相关分析法的铁道客车轮对动平衡测试  

Extraction of Train Wheel Set Vibration Signals Based on Variable Sampling Resolution Correlation Analysis Method

作　　者：吕守宝 赵世田[1] 崔治 曾勇[1] 唐崇邦 黄涛 LYU Shoubao;ZHAO Shitian;CUI Zhi;ZENG Yong;TANG Chongbang;HUANG Tao(College of Mechanical Engineering,Yancheng Institute of Technology,Yancheng 224051,Jiangsu,China;School of Mechanical and Electrical Engineering,Guilin University of Aerospace Technology,Guilin 541004,Guangxi,China;Beijing Magnetic Flux Equipment Manufacturing Co.,Ltd.,Beijing 101100,China)

机构地区：[1]盐城工学院机械工程学院,江苏盐城224051 [2]桂林航天工业学院机电工程学院,广西桂林541004 [3]北京磁通设备制造有限公司,北京101100

出　　处：《噪声与振动控制》2024年第6期143-148,共6页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(51305379);江苏省高校自然科学基金重大资助项目(18KJA460009,22KJD460009);江苏省研究生科研与实践创新计划资助项目(SJCX22_XY035)。

摘　　要：铁道客车轮对上的不平衡质量影响列车运行安全及速度的进一步提升,轮对安装前需要精确检测不平衡质量并进行动平衡处理。本文提出自适应小波消噪、MUSIC(Multiple Signal Classification)谱估计、相关分析法相结合的方法,实现铁道客车轮对动平衡振动信号特征的提取。通过Labview软件与MATLAB混合编程实现软件开发,并搭建铁道客车轮对动平衡测试平台进行实验验证,实验验证结果表明,经过降噪和采样分辨率的控制,可以克服现场噪声及频率干扰问题,提取的信号幅值及相位具有较高的精度,可实现轮对上不平衡质量及位置的准确探测。The imbalanced mass on the wheel sets of railway passenger cars affects the safety and further improvement of train operation and speed.Before installing the wheel sets,it is necessary to accurately detect the imbalanced mass and carry out dynamic balancing treatment.This paper proposed a method combining adaptive threshold wavelet denoising,MUSIC spectrum estimation,and correlation analysis to extract the characteristics of dynamic balance vibration signals of railway passenger car wheelsets.The software development was achieved through mixed programming of Labview software and MATLAB,and a dynamic balance testing platform for railway passenger car wheelsets was built for experimental verification.The experimental verification results show that through noise reduction and sampling resolution control,the problems of on-site noise and frequency interference can be overcome,and the extracted signal amplitude and phase have high accuracy.And the accurate detection of unbalanced mass and position of the wheelset is achieved.

关 键 词：振动与波 变采样分辨率 相关分析法 铁道客车轮对 振动信号特征提取 动平衡 

分 类 号：TN911.7[电子电信—通信与信息系统]