文章摘要
任学平,马文生,宋小龙,杨文志,苏凤歧.基于小波包变换的减速机降噪方法研究[J].声学技术,2008,(3):381~385
基于小波包变换的减速机降噪方法研究
Denoising method study in speed reducer on wavelet packet transform
投稿时间:2008-01-09  修订日期:2008-02-28
DOI:
中文关键词: 小波包分析  降噪  减速机  残差信号  故障诊断
英文关键词: wavelet packet analFsis  de-noising  speed reducer  residual signal  fault diagnosis
基金项目:
作者单位E-mail
任学平 内蒙古科技大学机械工程学院, 包头, 014010  
马文生 内蒙古科技大学机械工程学院, 包头, 014010 mawensheng1@sina.com 
宋小龙 内蒙古科技大学机械工程学院, 包头, 014010  
杨文志 内蒙古科技大学机械工程学院, 包头, 014010  
苏凤歧 内蒙古科技大学机械工程学院, 包头, 014010  
摘要点击次数: 489
全文下载次数: 453
中文摘要:
      在小波包降噪的基础上,提出了一种对小波包降噪后的残差信号进行频谱分析和统计分析的新方法,该方法首先对原始振动信号进行小波包降噪,然后根据降噪后的振动信号和原始振动相比的差值提取残差信号,最后通过对残差信号进行频谱分析提取产生噪声信号的特征频率,通过对残差信号的统计量分析判断设备运行状况。实例验证了小波包降噪和小波包降噪后残差统计分析的正确性。
英文摘要:
      A new residual signal spectrum analysis and statistics analysis method is proposed after wavelet packet denosing. Firstly, the original vibration signal is deomposed by wavelet packet theory, and the residual signal is extracted between the denoised vibration signal and the original vibration signal. Finally, the characteristic frequency of fault signal is extracted by residual signal spectrum analysis,and the ma-chine running state is judged by residual signal statistics analysis.
查看全文   查看/发表评论  下载PDF阅读器
关闭
function PdfOpen(url){ var win="toolbar=no,location=no,directories=no,status=yes,menubar=yes,scrollbars=yes,resizable=yes"; window.open(url,"",win); } function openWin(url,w,h){ var win="toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=" + w + ",height=" + h; controlWindow=window.open(url,"",win); } &et=367DDC7A4B8F1DDACFFB43F3B6CE7E61D585AC62AF8083BA28CF1CB6431DF733A2B9426A7B40AAD27FE1A02CACF661AF6F1EC5195CE935500A31E0991E6AED027FC5160517D9EED7&pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=DDCFCD5ACE1B1E5A6D46213553C850CA&yid=67289AFF6305E306&aid=&vid=&iid=38B194292C032A66&sid=B9B90065CF5CD7F0&eid=44FDB9366EDDFA2B&fileno=20080318&flag=1&is_more=0">