Introduction of Falling Friction Coefficients into Curving Calculations for Studying Curve Squeal Noise

In this paper, a method of introducing falling friction coefficients into curving simulations for studying curve squeal noise is presented. Generation of squeal at the wheel of a railway vehicle in a curve is caused by unstable vibration, caused in turn by a lateral wheel/rail force which reduces with increasing lateral creepage. To model vehicle curve squeal, the wheel/rail tangential force in the curving simulation is calculated by a modified version of FASTSIM, which uses a sliding velocity-dependent friction characteristic. Using the falling friction characteristics, a UK passenger vehicle is modelled with SIMPACK. Curving behaviour is simulated for a range of curve radii and cant deficiencies. The wheel/rail contact properties are then obtained to study the possibility of the occurrence of squeal using a frequency-domain method. The methodology in this paper allows various curves, wheel/rail profiles, vehicle speeds and friction characteristics to be taken into account.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780415436168
• Supplemental Notes:
  • Abstract reprinted with permission from Taylor and Francis.
• Corporate Authors:

  Taylor & Francis

  4 Park Square, Milton Park
  Abingdon,   United Kingdom  OX14 4RN
• Authors:
  • Xie, G
  • Allen, P D
  • Iwnicki, S D
  • Alonso, A
  • Thompson, D J
  • Jones, CJC
  • Huang, Z Y
• Conference:
  • 19th Symposium of the International Association for Vehicle System Dynamics
  • Location: Milan , Italy
  • Date: 2005-8-28 to 2005-9-2
• Publication Date: 2006

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 261-271
• Monograph Title: Proceedings of the 19th Symposium of the International Association for Vehicle System Dynamics
• Serial:
  • Vehicle System Dynamics
  • Volume: 44
  • Issue Number: Supplement
  • Publisher: Taylor & Francis
  • ISSN: 0042-3114
  • EISSN: 1744-5159

Subject/Index Terms

• TRT Terms: Car wheels (Railroads); Coefficient of friction; Curves (Geometry); Force; Frequency domain analysis; Noise; Railroad cars; Rolling contact; Simulation; Tangents; Vibration
• Uncontrolled Terms: Curve radius; Falling friction; Lateral loads; Wheel squeal
• Subject Areas: Environment; Railroads;

Filing Info

• Accession Number: 01046799
• Record Type: Publication
• ISBN: 9780415436168
• Files: TRIS
• Created Date: Apr 6 2007 2:34PM