A linear wheel–crossing interaction model

This paper presents the derivation of a linear model for wheel–rail interaction kinematics at railway crossings. The purpose of this model is to demonstrate the fundamental constraints imposed on a crossing geometry if it should be compatible with a given range of wheel profile shapes. In this model, the contact point locations on the wing rail and on the crossing nose are described using linear functions, and the wheel profiles are modelled as conical. Based on these assumptions, a method is developed to adjust the vertical position and longitudinal inclination of the wing rail and the crossing nose in order for the crossing geometry to be compatible with a given range of equivalent wheel profile cone angles. In particular, an expression is derived for the average impact angle. The derived relation highlights the potential of tailoring crossing geometries for a given spread in wheel profile shapes in traffic for minimized loading and damage. Further, the properties of the model are compared to the results of quasi-static multibody simulations for a range of wheel profiles.

• Record URL:
  • https://doi.org/10.1177/0954409718772984
• Record URL:
  • https://journals.sagepub.com/doi/abs/10.1177/0954409718772984
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09544097
• Supplemental Notes:
  • Reprinted by permission of Sage Publications, Ltd.
• Authors:
  • Pålsson, Björn A
  • 0000-0002-2237-8560
• Publication Date: 2018-11

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 2431-2443
• Serial:
  • Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit
  • Volume: 232
  • Issue Number: 10
  • Publisher: Sage Publications Limited
  • ISSN: 0954-4097
  • EISSN: 2041-3017
  • Serial URL: http://pif.sagepub.com/content/current

Subject/Index Terms

• TRT Terms: Geometry; Kinematics; Mathematical models; Railroad grade crossings; Railroad wheels; Rolling contact
• Uncontrolled Terms: Rail geometry (Railroads); Wheel profiles
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 01685471
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 20 2018 10:11AM