Short wavelength rail corrugation and non-steady-state contact mechanics

J. J. Kalker has been the first to consider non-steady-state or transient contact mechanics. Based on Kalker the second author developed a linear contact model for the non-steady-state rolling contact of a wheel running over slightly corrugated rails. The theoretical investigations are concentrated on linear, non-steady-state contact mechanics superimposed to a nonlinear reference state. The reference state is given by the running behaviour of a wheelset due to traction, curving or hunting. For the linear, non-steady-state analysis Kalker's theory has to be modified to predict wear rates in dependency of the corrugation wavelengths. As a result corrugations are only amplified in the range between 2 and 10 cm. Therefore, non-steady-state contact mechanics and wear are responsible for a wavelength fixing mechanism. Structural mechanics of the rail indicate that wavelength in this range is predominantly amplified.

• Record URL:
  http://www.informaworld.com/10.1080/00423110701590180
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00423114
• Supplemental Notes:
  • Abstract reprinted with permission from Taylor & Francis
• Authors:
  • Knothe, K
  • Gross-Thebing, A
• Publication Date: 2008

Language

• English

Media Info

• Media Type: Print
• Edition: Issues 1-2
• Features: Figures; Photos; References;
• Pagination: pp. 49-66
• Serial:
  • Vehicle System Dynamics
  • Volume: 46
  • Publisher: Taylor & Francis
  • ISSN: 0042-3114
  • EISSN: 1744-5159
  • Serial URL: https://www.tandfonline.com/toc/nvsd20/current

Subject/Index Terms

• TRT Terms: Corrugated rail; Mathematical models; Rolling contact; Wavelength; Wear
• Uncontrolled Terms: Amplification; Contact mechanics; Transient loads
• Subject Areas: Railroads;

Filing Info

• Accession Number: 01090757
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 27 2008 10:28AM