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B. Hemsworth

Bio: B. Hemsworth is an academic researcher. The author has contributed to research in topics: Noise control & Noise. The author has an hindex of 1, co-authored 1 publications receiving 221 citations.

Papers
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Journal ArticleDOI
TL;DR: The Track-Wheel Interaction Noise Software (TWINS) as mentioned in this paper is a software package for measuring wheel/rail rolling noise in terms of the surface roughness of wheel and rail.

245 citations


Cited by
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Journal ArticleDOI
TL;DR: A review of theoretical models that have been developed to predict these phenomena is given in this article, where the authors consider three main categories of wheel/rail noise: rolling noise, impact noise, and squeal noise.

216 citations

Journal ArticleDOI
TL;DR: In this paper, the authors surveyed the causes and consequences of wheel/rail wear that is non-uniform in magnitude around/along the running surface and suggested remedies to relieve the problems.
Abstract: Summary High-frequency train-track interaction and mechanisms of wheel/rail wear that is non-uniform in magnitude around/along the running surface are surveyed. Causes, consequences and suggested remedies to relieve the problems are discussed for three types of irregular wheel/rail wear: (1) short-pitch rail corrugation on tangent tracks and large radius curves, (2) wheel corrugation as caused by tread braking, and (3) wheel polygonalisation. The state-of-the-art in modelling of dynamic train-track interaction in conjunction with prediction of irregular wear is reviewed.

160 citations

Journal ArticleDOI
TL;DR: In this article, a numerical model is developed to predict the wheel/rail dynamic interaction occurring due to excitation by wheel flats, where a relative displacement excitation is introduced between the wheel and rail that differs from the geometric form of the wheel flat.

151 citations

Journal ArticleDOI
01 May 2005
TL;DR: In this paper, a review of the impact of out-of-round wheels on track and rolling stock components is presented, including rail joints, prestressed concrete sleepers, ballast, wheels, and bearings.
Abstract: Out-of-round rollingstock wheels are caused by skidding or spalling of the wheel tread and by dynamic motion of wheels and wheelsets in service. Out-of-round wheels generate impact forces at the wheel-rail interface, which are transferred to train and to track components including rail and both bolted and welded rail joints, prestressed concrete sleepers, ballast, wheels, and bearings.To make a rational decision about removing out-of-round wheels from service, estimation of the damage caused by an individual wheel is required. Previous studies have used analytical and numerical models to illustrate the distribution of impact into track and rolling stock components. These models are compared here. The review details mathematical models and studies of the lives of the earlier-listed components, which would provide a means of determining the damage caused by impacting wheels. In addition, studies have found that impacting wheels increase fuel consumption and increase pass-by noise levels, which are a...

115 citations

Journal ArticleDOI
TL;DR: In this article, the response of periodically supported structures subject to a moving or stationary harmonic load is derived in terms of an integral over the wavenumber in the longitudinal direction, which is expressed as a function of the position of the supports.

107 citations