کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10368830 | 875137 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Application of EMD method and Hilbert spectrum to the fault diagnosis of roller bearings
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
پردازش سیگنال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Application of EMD method and Hilbert spectrum to the fault diagnosis of roller bearings Application of EMD method and Hilbert spectrum to the fault diagnosis of roller bearings](/preview/png/10368830.png)
چکیده انگلیسی
Based upon empirical mode decomposition (EMD) method and Hilbert spectrum, a method for the fault diagnosis of roller bearings is proposed in this paper. The local Hilbert spectrum and local Hilbert marginal spectrum are introduced. The orthogonal wavelet bases are used to translate vibration signals of a roller bearing into time-scale representation. Then, an envelope signal can be obtained by envelope spectrum analysis of wavelet coefficients of high scales. By applying EMD method and Hilbert transform to the envelope signal, we can get the local Hilbert marginal spectrum from which the faults in a roller bearing can be diagnosed and fault patterns can be identified. Practical vibration signals measured from roller bearings with out-race faults or inner-race faults are analysed by the proposed method. The results show that the proposed method is superior to the traditional envelope spectrum method in extracting the fault characteristics of roller bearings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volume 19, Issue 2, March 2005, Pages 259-270
Journal: Mechanical Systems and Signal Processing - Volume 19, Issue 2, March 2005, Pages 259-270
نویسندگان
Dejie Yu, Junsheng Cheng, Yu Yang,