Wheelset-bearing Compound Fault Detection Based on Layered-operator Morphological Wavelet

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Wavelet Based Signal Demodulation Technique for Bearing Fault Detection

Diagnostics of rolling elements under varying operational conditions, where disturbances and other rotating elements have strong influence on correctness of analysis, requires engagement of advanced signal processing techniques. Extraction of signal components generated by bearing faults has been proven to be an exceptionally promising method for rolling element bearing fault detection. In this...

متن کامل

Incipient fault diagnosis of rolling element bearing based on wavelet packet transform and energy operator

This paper mainly deals with the issue of incipient fault diagnosis for rolling element bearing. Firstly, an envelope demodulation technique based on wavelet packet transform and energy operator is applied to extract the fault feature of vibration signal. Secondly, the relative spectral entropy of envelope spectrum and the gravity frequency are combined to construct two-dimensional features vec...

متن کامل

Wheelset Bearing Vibration Analysis Based on Nonlinear Dynamical Method

The wheelset bearing play an important role in train running safety. In this paper, we introduce the nonlinear dynamical method to study the wheelset bearing vibration signal. Based on the comparative studies of the phase graph and the correlation dimension of the vibration signals under normal condition, outer peeling fault condition and rolling element electric erosion fault condition, the fo...

متن کامل

Bearing Fault Diagnosis Based on Laplace Wavelet Transform

The roller bearing characteristic frequencies contain very little energy, and are usually overwhelmed by noise and higher levels of structural vibrations. Therefore, envelope spectrum analysis is widely used to detection bearing localized fault. In order to overcome the shortcomings in the traditional envelope analysis in which manually specifying a resonant frequency band is required, a new ap...

متن کامل

An Enhanced Energy Operator for Bearing Fault Detection

This paper reports an enhanced energy operator (EEO) method to detect bearing faults. This new energy operator exploits both the interference handling capability of a differentiation step and the noise suppression nature of the integration process. All these elements, i.e., differentiation, integration and energy operator, are implemented by a simple formula in one step. The main advantages of ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Jixie gongcheng xuebao

سال: 2022

ISSN: ['0577-6686']

DOI: https://doi.org/10.3901/jme.2022.10.001