重型机械
重型機械
중형궤계
HEAVY MACHINERY
2015年
3期
1-4
,共4页
刘欢%王健%高淑芝%郭烁%张琳琳
劉歡%王健%高淑芝%郭爍%張琳琳
류환%왕건%고숙지%곽삭%장림림
多重分形%风力机%故障诊断%主轴
多重分形%風力機%故障診斷%主軸
다중분형%풍력궤%고장진단%주축
multi-fractal%wind turbine%fault diagnosis%main bearing
大型风力机主轴承系统动力特性复杂，表现出强烈的非线性、强耦合和时变特征，故障特征信号难以提取。本文运用多重分形理论对风力机主轴承系统故障进行诊断识别的方法进行了研究，该方法具有直观性并且对于早期的设备状态变化具有敏感性。某风场1.5 MW大型风力机主轴实验结果证明该方法快速有效。
大型風力機主軸承繫統動力特性複雜，錶現齣彊烈的非線性、彊耦閤和時變特徵，故障特徵信號難以提取。本文運用多重分形理論對風力機主軸承繫統故障進行診斷識彆的方法進行瞭研究，該方法具有直觀性併且對于早期的設備狀態變化具有敏感性。某風場1.5 MW大型風力機主軸實驗結果證明該方法快速有效。
대형풍력궤주축승계통동력특성복잡，표현출강렬적비선성、강우합화시변특정，고장특정신호난이제취。본문운용다중분형이론대풍력궤주축승계통고장진행진단식별적방법진행료연구，해방법구유직관성병차대우조기적설비상태변화구유민감성。모풍장1.5 MW대형풍력궤주축실험결과증명해방법쾌속유효。
It is difficult to extract the characteristics of fault signals of large-scale wind turbine main bearing because it is complex with strong non-linearity, strong coupling and time-varying.Multi-fractal theory is put for-ward to detect and recognize the different faults of the main bearing .And the method is intuitive and sensitive to diverse faults of large-scale wind turbine main bearing .The results of experiments on the main bearings of 1.5 MW wind turbines are reported to demonstrate the method is quick and effective .
