A Vibration Analysis Based on Wavelet Entropy Method of a Scroll Compressor
Entropy, 2015 Vibration-based condition monitoring and fault diagnosis is an effective approach to maintain the reliable operation of a scroll compressor. Unfortunately, the vibration signal from the scroll compressor always has characteristics of being non-linear and
Tao Liu, Zaixin Wu
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On the need for bump event correction in vibration test profiles representing road excitations in automobiles [PDF]
, 2002 This paper presents an approach to the synthesis of compressed vibration test profiles representing much longer time histories obtained in road testing of ground vehicles.
Giacomin, J +2 more
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Detection of bearing damage by statistic vibration analysis [PDF]
, 2005 The condition of bearings, which are essential components in mechanisms, is crucial to safety. The analysis of the bearing vibration signal, which is always contaminated by certain types of noise, is a very important standard for mechanical condition ...
Adam, Jürgen +9 more
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Analysis and modification of a single-mesh gear fatigue rig for use in diagnostic studies [PDF]
A single-mesh gear fatigue rig was analyzed and modified for use in gear mesh diagnostic research. The fatigue rig allowed unwanted vibration to mask the test-gear vibration signal, making it difficult to perform diagnostic studies.
Decker, Harry J. +3 more
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Influence of vibrations on structures [PDF]
, 2018 One type of occasional structural load is a seismic load. Earthquakes and blasts are typical sources of vibrations, but vibration generated during urban tunnel construction can represent a significant problem.
Kaláb, Zdeněk
core
Background free CARS imaging by phase sensitive heterodyne CARS [PDF]
, 2008 In this article we show that heterodyne CARS, based on a controlled and stable phase-preserving chain, can be used to measure amplitude and phase information of molecular vibration modes.
Herek, J.L. +4 more
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Vibration Alert Bracelet for Notification of the Visually and Hearing Impaired [PDF]
, 2019 This paper presents the prototype of an electronic vibration bracelet designed to help the visually and hearing impaired to receive and send emergency alerts. The bracelet has two basic functions.
Ababei, Cristinel +7 more
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Research of vibration signal extraction and fault diagnosis of shearer cutting unit
Gong-kuang zidonghua, 2015 In view of problem that it is difficult to extract vibration signal and carry out fault diagnosis of coal mine electromechanical equipment, intrinsically safe mine-used portable vibration recorder was applied to collect vibration signal of shearer ...
HUA Wei +3 more
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Fault Detection of Gearbox from Inverter Signals Using Advanced Signal Processing Techniques [PDF]
, 2012 The gear faults are time-localized transient events so time-frequency analysis techniques (such as the Short-Time Fourier Transform, Wavelet Transform, motor current signature analysis) are widely used to deal with non-stationary and nonlinear signals ...
Ball, Andrew +3 more
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Detection of bearing failure in mechanical devices using neural networks [PDF]
We present a novel time-domain method for the detection of faulty bearings that has direct applicability to monitoring the health of the turbo pumps on the Space Shuttle Main Engine.
Burne, Richard A. +3 more
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