Journal ArticleDOI
Instantaneous energy density as a feature for gear fault detection
TLDR
In this paper, the instantaneous energy density is shown to obtain high values when defected teeth are engaged, and three methods are compared in terms of sensitivity, reliability and computation effectiveness.About:
This article is published in Mechanical Systems and Signal Processing.The article was published on 2006-07-01. It has received 109 citations till now. The article focuses on the topics: Hilbert–Huang transform & Fault detection and isolation.read more
Citations
More filters
Journal ArticleDOI
A review on empirical mode decomposition in fault diagnosis of rotating machinery
TL;DR: This paper attempts to survey and summarize the recent research and development of EMD in fault diagnosis of rotating machinery, providing comprehensive references for researchers concerning with this topic and helping them identify further research topics.
Journal ArticleDOI
Application of the EEMD method to rotor fault diagnosis of rotating machinery
Yaguo Lei,Zhengjia He,Yanyang Zi +2 more
TL;DR: Wang et al. as discussed by the authors proposed a new EEMD-based method for fault diagnosis of rotating machinery, which can reveal the signal characteristic information accurately because of the problem of mode mixing.
Journal ArticleDOI
Dynamic simulation of spur gear with tooth root crack propagating along tooth width and crack depth
Zaigang Chen,Yimin Shao +1 more
TL;DR: In this paper, an analytical model is proposed to investigate the effect of gear tooth crack on the gear mesh stiffness, where both the tooth crack propagations along tooth width and crack depth are incorporated in this model to simulate gear tooth root crack, especially when it is at very early stage.
Journal ArticleDOI
Simulation of spur gear dynamics and estimation of fault growth
Siyan Wu,Ming J. Zuo,Anand Parey +2 more
TL;DR: In this article, the effects of tooth crack on the vibration response of a one-stage gearbox with spur gears are studied and the growth in a tooth crack is reflected in the total mesh stiffness of the gear system.
Journal ArticleDOI
A Review of Feature Extraction Methods in Vibration-Based Condition Monitoring and Its Application for Degradation Trend Estimation of Low-Speed Slew Bearing
TL;DR: In this paper, an empirical study of feature extraction methods for the application of low-speed bearing condition monitoring is presented, where the selected features such as impulse factor, margin factor, approximate entropy and largest Lyapunov exponent (LLE) show obvious changes in bearing condition from normal condition to final failure.
References
More filters
Journal ArticleDOI
The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis
Norden E. Huang,Zheng Shen,Steven R. Long,Man-Li C. Wu,Hsing H. Shih,Quanan Zheng,Nai-Chyuan Yen,C. C. Tung,Henry H. Liu +8 more
TL;DR: In this paper, a new method for analysing nonlinear and nonstationary data has been developed, which is the key part of the method is the empirical mode decomposition method with which any complicated data set can be decoded.
Book
A wavelet tour of signal processing
TL;DR: An introduction to a Transient World and an Approximation Tour of Wavelet Packet and Local Cosine Bases.
Journal ArticleDOI
Time-frequency distributions-a review
TL;DR: A review and tutorial of the fundamental ideas and methods of joint time-frequency distributions is presented with emphasis on the diversity of concepts and motivations that have gone into the formation of the field.
The wigner distribution - a tool for time-frequency signal analysis
T. Claasen,W. Mecklenbrauker +1 more
TL;DR: In this paper, the Wigner distribution is adapted to the case of discrete-time signals and it is shown that most of the properties of this time-frequency signal representation carry over directly to the discrete time case, but some other problems are associated with the fact that in general, these aliasing contributions will not be present if the signal is either oversampled by a factor of at least two, or is analytic.
The wigner distribution - a tool for time-frequency signal analysis part ii: discrete-time signals
T. Claasen,W. Mecklenbrauker +1 more
TL;DR: In this second part of the paper the Wigner distribution is adapted to the case of discrete-time signals, and it is shown that most of the properties of this time-frequency signal representation carry over directly to the discrete- time case, but some cause problems.
Related Papers (5)
Application of wavelets to gearbox vibration signals for fault detection
Weiji Wang,P.D. McFadden +1 more