工程与试验
工程與試驗
공정여시험
ENGINEERING & TEST
2013年
4期
13-17,26
,共6页
苏连成%牛洪乾%李兴林%刘鑫
囌連成%牛洪乾%李興林%劉鑫
소련성%우홍건%리흥림%류흠
旋转轴承%循环谱%包络直方图%故障诊断%信号处理
鏇轉軸承%循環譜%包絡直方圖%故障診斷%信號處理
선전축승%순배보%포락직방도%고장진단%신호처리
rolling bearing%cyclic spectrum%envelope histogram%fault diagnosis%signal process-ing
采用时域包络直方图与频域循环谱相结合的方法，对非平稳状态的轴承振动信号进行故障分析和识别。首先利用包络直方图获取振动信号的能量分布，实时、直观地评估轴承的运行状态；然后对异常状态的振动信号进行循环平稳分析，通过特征频率获取故障的具体部位。二者相结合的方法既可以快速直观地实现故障识别，又可以保证故障诊断的细致和准确。
採用時域包絡直方圖與頻域循環譜相結閤的方法，對非平穩狀態的軸承振動信號進行故障分析和識彆。首先利用包絡直方圖穫取振動信號的能量分佈，實時、直觀地評估軸承的運行狀態；然後對異常狀態的振動信號進行循環平穩分析，通過特徵頻率穫取故障的具體部位。二者相結閤的方法既可以快速直觀地實現故障識彆，又可以保證故障診斷的細緻和準確。
채용시역포락직방도여빈역순배보상결합적방법，대비평은상태적축승진동신호진행고장분석화식별。수선이용포락직방도획취진동신호적능량분포，실시、직관지평고축승적운행상태；연후대이상상태적진동신호진행순배평은분석，통과특정빈솔획취고장적구체부위。이자상결합적방법기가이쾌속직관지실현고장식별，우가이보증고장진단적세치화준학。
The vibration signal of non-stationary state rolling bearings is studied by using the method which combines envelope histogram with cyclic spectrum for fault analysis and fault rec-ognition.Firstly,the envelope histogram is utilized to get the distribution of the amplitude of vi-bration signals for evaluating the running state of the bearing in the real-time.Then,the cyclo-stationary theory is introduced to obtain the frequency information of the bearing to get the spe-cific locations of the faults.The proposed method based on the time and frequency domain infor-mation has the advantages of quick and accurate.
