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Wheel–rail impact loads and noise generated at railway crossings: Influence of vehicle speed and crossing dip angle
Swedish National Road and Transport Research Institute, Traffic and road users, Driving Simulation and Visualization.
University of Southampton.
Giacomo.
Chalmers Tekniska Högskola.
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2019 (English)In: Journal of Sound and Vibration, ISSN 0022-460X, E-ISSN 1095-8568, Vol. 456, p. 119-136Article in journal (Refereed) Published
Abstract [en]

Wheel–rail impact loads and noise at railway crossings are calculated by applying a hybrid prediction model. It combines the simulation of non-linear vertical dynamic vehicle‒track interaction in the time domain and the prediction of sound pressure level using a linear frequency-domain model. The two models are coupled based on the concept of an equivalent roughness spectrum. The time-domain model uses moving Green's functions for the linear vehicle and track models, accounting for wheel structural flexibility and a discretely supported rail with spatially-varying beam properties, and a non-Hertzian wheel–rail contact model. Three-dimensional surface geometry of the wheel and crossing is accounted for in the solution of the wheel–rail contact. The hybrid model is compared against field measurements and is demonstrated by investigating the influence of vehicle speed and crossing geometry on the radiated impact noise. Based on simulation results, it is concluded that the impact loads and noise can be mitigated by reducing the effective dip angle at the crossing, which is determined by the vertical trajectory of the wheel when making the transition between wing rail and crossing nose.

Place, publisher, year, edition, pages
Academic Press , 2019. Vol. 456, p. 119-136
National Category
Vehicle Engineering
Identifiers
URN: urn:nbn:se:vti:diva-13956DOI: 10.1016/j.jsv.2019.04.034Scopus ID: 2-s2.0-85066019437OAI: oai:DiVA.org:vti-13956DiVA, id: diva2:1320732
Available from: 2019-06-05 Created: 2019-06-05 Last updated: 2019-06-05Bibliographically approved

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Torstensson, Peter

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf