Results 21 to 30 of about 5,176,577 (228)
Известия высших учебных заведений России: Радиоэлектроника, 2022 Introduction. Efficient operation of a system for measuring rail surface short-wavelength irregularities depends on evaluation of the signal length with respect to travelled distances, i.e., the standard maximum defect length and the distance between the
A. V. Bolshakova +6 more
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Near field enhancements from angled surface defects : a comparison of scanning laser source and scanning laser detection techniques [PDF]
, 2011 Enhancement of the Rayleigh wave signal amplitude at a surface defect, due to interference of incident, reflected and mode converted waves, has been reported by several authors, and it has been suggested that this could be used as a fingerprint of the ...
Edwards, R. S. (Rachel S.) +5 more
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Adaptive noise cancelling and time–frequency techniques for rail surface defect detection [PDF]
, 2015 Adaptive noise cancelling (ANC) is a technique which is very effective to remove additive noises from the contaminated signals. It has been widely used in the fields of telecommunication, radar and sonar signal processing.
Liang, B. +11 more
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Вестник Научно-исследовательского института железнодорожного транспорта, 2021 The review analyzes a monograph published by Springer Vieweg publishing house, which presents scientific approaches to the problems of defect formation in railway rails.
E. A. Shur
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Railway wheel-flat and rail surface defect modelling and analysis by time–frequency techniques [PDF]
, 2013 Damage to the surface of railway wheels and rails commonly occurs in most railways. If not detected, it can result in rapid deterioration and possible failure of rolling stock and infrastructure components causing higher maintenance costs.
Liang, B. +7 more
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MONITORING OF TRACK SECTIONS WITH LONG-PITCH CORRUGATION
Acta Polytechnica CTU Proceedings, 2016 The focus of this paper lies on monitoring of the track sections with rail corrugations caused by wheel sliding. Short waves on the running surface of the rail head on low rail are typical for this defect. Long-pitch corrugation is a significant cause of
Jan Valehrach, Jaroslav Šmíd
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INFLUENCE OF CONTACT STATE ON PROPAGATION PATH OF RAIL SURFACE CRACK
Jixie qiangdu, 2022 In order to investigate the formation mechanism of fishhook shaped spalling defect on rail surface, the fatigue calculation model of wheel/rail rolling contact was established and the prediction method of crack propagation path was proposed based on the ...
MENG RuiJun, ZHAO Rui, WEI XiaoGang
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The effects of surface defects on the fatigue of water and oil lubricated contacts [PDF]
, 2000 A study into effects of surface defects on the rolling contact fatigue of brass and rail steel has been undertaken on a twin-disc rolling-sliding test machine with both oil and water lubrication.
Gao, N., Dwyer-Joyce, R. S.
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Applied Sciences, 2022 Magnetic flux leakage (MFL) detection is a common nondestructive detection method which is usually used to detect the surface defects of steel pipes and rails.
Yinliang Jia +5 more
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Data fusion for defect characterisation using a dual probe system [PDF]
, 2008 We present recent work on a dual probe system containing electromagnetic acoustic transducers (EMATs) generating and detecting surface ultrasonic waves, and a pulsed eddy current (PEC) probe.
Dixon, S. +6 more
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