基于轴频电场的舰船主轴系故障诊断研究
|
摘要
文章针对在舰船舱室中测得的振动信号包含大量难以去除的非高斯有色噪声以及来自齿轮箱等设备的干扰振动信号,从而影响故障诊断的效果这一问题,提出了一种基于舰船轴频电场的主轴系故障诊断方法,使用该方法对实验数据进行处理,结果表明该方法能够成功诊断出主轴系的三种典型故障,并且在信噪比较低的情况下该方法依然有效。
The vibration signals measured in the cabin always contain some non-Gauss colored noises and the disturbing vibration signals from the equipments such as gear case, and all these signals are difficult to avoid, so the fault diagnosis results will be affected. Aiming at the problem, a fault diagnosis method for principal shafting of ship based on the shaft-rate electric field is put forward to solve this problem, this method is applied to the experiment data, the results prove this method can diagnose three typical faults of the principal shafting successfully, and the method is also efficient when the signal to noise ratio (SNR) is low.
The vibration signals measured in the cabin always contain some non-Gauss colored noises and the disturbing vibration signals from the equipments such as gear case, and all these signals are difficult to avoid, so the fault diagnosis results will be affected. Aiming at the problem, a fault diagnosis method for principal shafting of ship based on the shaft-rate electric field is put forward to solve this problem, this method is applied to the experiment data, the results prove this method can diagnose three typical faults of the principal shafting successfully, and the method is also efficient when the signal to noise ratio (SNR) is low.
引文
[1]Antoni J.Fast computation of the kurtogram for the detection of transient faults[C].Mechanical Systems and Signal Pro-cessing,2007,21:108-124.
[2]苏文胜,王奉涛,张志新.EMD降噪和谱峭度法在滚动轴承早期故障诊断中的应用[J].振动与冲击,2010,29(3):18-21.Su Wensheng,Wang Fengtao,Zhang Zhixin.Application of EMD denoising and spectral kurtosis in early fault diagnosis of rolling element bearings[J].Journal of Vibration and Shock,2010,29(3):18-21.
[3]林勇,周晓军,张文斌,等.基于形态小波理论和双谱分析的滚动轴承故障诊断[J].浙江大学学报(工学版),2010,44(3):432-439.Lin Yong,Zhou Xiaojun,Zhang Wenbin,et al.Rolling bearing fault diagnosis based on morphological wavelet theory and bi-spectrum analysis[J].Journal of Zhejiang University(Engineering Science),2010,44(3):432-439.
[4]Holtham P M,Jeffrey I G.ELF signature control[C].UDT,1996:486-489.
[5]毛伟,张宁,林春生.在三层介质中运动的时谐水平偶极子产生的电磁场[J].电子学报,2009,37(9):2077-2081.Mao Wei,Zhang Ning,Lin Chunsheng.The EM fields produced by a moving horizontally-directed time-harmonic dipole in three-layer medium[J].Acta Electronica Sinica,2009,37(9):2077-2081.
[6]卢新城,龚沈光,林春生.自适应谱线增强在舰船轴频电场信号检测中的应用[J].数据采集与处理,2004,19(4):438-440.Lu Xincheng,Gong Shenguang,Lin Chunsheng.Application of adaptive line enhancement on testing the shaft-rate elec-tric field of a ship[J].Journal of Data Acquisition&Processing,2004,19(4):438-440.
[7]姚天任,孙洪.现代数字信号处理[M].武汉:华中理工大学出版社,1999:45-120.
[2]苏文胜,王奉涛,张志新.EMD降噪和谱峭度法在滚动轴承早期故障诊断中的应用[J].振动与冲击,2010,29(3):18-21.Su Wensheng,Wang Fengtao,Zhang Zhixin.Application of EMD denoising and spectral kurtosis in early fault diagnosis of rolling element bearings[J].Journal of Vibration and Shock,2010,29(3):18-21.
[3]林勇,周晓军,张文斌,等.基于形态小波理论和双谱分析的滚动轴承故障诊断[J].浙江大学学报(工学版),2010,44(3):432-439.Lin Yong,Zhou Xiaojun,Zhang Wenbin,et al.Rolling bearing fault diagnosis based on morphological wavelet theory and bi-spectrum analysis[J].Journal of Zhejiang University(Engineering Science),2010,44(3):432-439.
[4]Holtham P M,Jeffrey I G.ELF signature control[C].UDT,1996:486-489.
[5]毛伟,张宁,林春生.在三层介质中运动的时谐水平偶极子产生的电磁场[J].电子学报,2009,37(9):2077-2081.Mao Wei,Zhang Ning,Lin Chunsheng.The EM fields produced by a moving horizontally-directed time-harmonic dipole in three-layer medium[J].Acta Electronica Sinica,2009,37(9):2077-2081.
[6]卢新城,龚沈光,林春生.自适应谱线增强在舰船轴频电场信号检测中的应用[J].数据采集与处理,2004,19(4):438-440.Lu Xincheng,Gong Shenguang,Lin Chunsheng.Application of adaptive line enhancement on testing the shaft-rate elec-tric field of a ship[J].Journal of Data Acquisition&Processing,2004,19(4):438-440.
[7]姚天任,孙洪.现代数字信号处理[M].武汉:华中理工大学出版社,1999:45-120.