铁道科学与工程学报
鐵道科學與工程學報
철도과학여공정학보
JOURNAL OF RAILWAY SCIENCE AND ENGINEERING
2014年
5期
46-51
,共6页
于天剑%陈特放%陈雅婷%陈春阳
于天劍%陳特放%陳雅婷%陳春暘
우천검%진특방%진아정%진춘양
机车故障诊断%盲反卷积%振动信号%故障预测
機車故障診斷%盲反捲積%振動信號%故障預測
궤차고장진단%맹반권적%진동신호%고장예측
locomotive fault diagnose%blind-deconvolution%vibration signal%failure prediction
基于一种新的机车齿轮箱振动信号去噪的模型及算法,在分析总结大量实际振动信号的基础上,探讨运用盲反卷积去噪的方法以提高信号信噪比和信号质量,通过提取机车齿轮的故障特征信息并与TSA(时间同步平均)方法相比较,其在准度和精度方面都有较大改善。不仅能满足在线监测和故障诊断的实时性和可靠性的要求,同时显示出属性的可靠性、耐用性和高置信度性,提高了诊断和预警的技术。
基于一種新的機車齒輪箱振動信號去譟的模型及算法,在分析總結大量實際振動信號的基礎上,探討運用盲反捲積去譟的方法以提高信號信譟比和信號質量,通過提取機車齒輪的故障特徵信息併與TSA(時間同步平均)方法相比較,其在準度和精度方麵都有較大改善。不僅能滿足在線鑑測和故障診斷的實時性和可靠性的要求,同時顯示齣屬性的可靠性、耐用性和高置信度性,提高瞭診斷和預警的技術。
기우일충신적궤차치륜상진동신호거조적모형급산법,재분석총결대량실제진동신호적기출상,탐토운용맹반권적거조적방법이제고신호신조비화신호질량,통과제취궤차치륜적고장특정신식병여TSA(시간동보평균)방법상비교,기재준도화정도방면도유교대개선。불부능만족재선감측화고장진단적실시성화가고성적요구,동시현시출속성적가고성、내용성화고치신도성,제고료진단화예경적기술。
This paper introduced a new gearbox vibration signal de-noising locomotive model and algorithm based on the analysis of a lot of the actual vibration signals,to discusses the use of blind deconvolution de -noising methods so as to improve the noise ratio and signal quality,by extracting characteristic information of the motorcy-cle gear and comparing with TSA (time Synchronization average)method,by which the results were greatly im-proved in accuracy and precision.The proposed method can not only meet the requirements of real-time charac-teristics and reliability in the respect of online monitoring and fault diagnose,but also show the reliability proper-ties,durability and high degree of confidence,which improves the diagnosis and early warning techniques.