噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2014年
6期
161-165
,共5页
振动与波%故障诊断%齿轮箱%相关分析%自适应滤波%振动信号
振動與波%故障診斷%齒輪箱%相關分析%自適應濾波%振動信號
진동여파%고장진단%치륜상%상관분석%자괄응려파%진동신호
vibration and wave%fault diagnosis%gearbox%correlation analysis%adaptive filter%vibration signal
振动信号作为风电机组齿轮箱故障诊断的重要依据，一直是风电机组故障诊断领域关注的研究热点。基于不同频率、不同能量振动信号的传播规律，对齿轮箱上不同测点的振动信号的相关性进行分析，建立以互相关信号为参考信号的自适应滤波模型，利用该模型提取振动信号中的相似成分，进而利用幅值谱分析相似成分，得到更加清晰的转频及其倍频，为齿轮箱的故障诊断提供依据。方法的有效性得到实测振动数据的验证。
振動信號作為風電機組齒輪箱故障診斷的重要依據，一直是風電機組故障診斷領域關註的研究熱點。基于不同頻率、不同能量振動信號的傳播規律，對齒輪箱上不同測點的振動信號的相關性進行分析，建立以互相關信號為參攷信號的自適應濾波模型，利用該模型提取振動信號中的相似成分，進而利用幅值譜分析相似成分，得到更加清晰的轉頻及其倍頻，為齒輪箱的故障診斷提供依據。方法的有效性得到實測振動數據的驗證。
진동신호작위풍전궤조치륜상고장진단적중요의거，일직시풍전궤조고장진단영역관주적연구열점。기우불동빈솔、불동능량진동신호적전파규률，대치륜상상불동측점적진동신호적상관성진행분석，건립이호상관신호위삼고신호적자괄응려파모형，이용해모형제취진동신호중적상사성분，진이이용폭치보분석상사성분，득도경가청석적전빈급기배빈，위치륜상적고장진단제공의거。방법적유효성득도실측진동수거적험증。
The vibration signal is one of important bases for fault diagnosis of wind turbine gearbox. In this article, the correlation of vibration signals acquired from different positions of gearbox is analyzed, and the cross-correlation signal is obtained simultaneously. Then, the model of adaptive filtering by utilizing the cross-correlation signal as a reference signal is established, and the similar components of different vibration signals are extracted. Afterwards, the amplitude spectrum method is utilized to analyze the similar components, and the rotating frequency and its harmonics, which are significant for fault diagnosis of the gearbox, are obtained. Finally, the effectiveness of the method is verified by online vibration data.
