MATHEMATICAL SIMULATION OF LOCOMOTIVE STEADY STATE CURVING PERFORMANCE

This paper describes a nonlinear mathematical model developed by EMD to evaluate the steady state curving performance of locomotives and other railway vehicles. The model has been formulated to include the effects of two-point wheel contact, suspension and creepage nonlinearities, and tractive or braking requirements of conventional 2,3, or 4-axle powered trucks. The requirement of creep forces for tractive effort (adhesion demand), and losses due to creepage (resulting from misalignment and rolling diameter errors), are resolved through the use of a concept termed the "Resultant Creep Circle". This concept is used to establish precedence between the longitudinal and lateral creepage requirements within the available adhesion limit.

• Supplemental Notes:
  • ASME Rail Transportation Spring Conference Proceedings--1986 presented at Joint ASME/IEEE Railroad Conference Norfolk, Virginia, April 8-10, 1986.
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Smith, K R
  • Rassaian, M
• Conference:
  • ASME Rail Transportation Spring Conference Proceedings--1986 presented at Joint ASME/IEEE Railroad Conference Norfolk, Virginia, April 8-10, 1986.
• Publication Date: 1986

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 21-29

Subject/Index Terms

• TRT Terms: Creep; Locomotives; Mathematical models; Rail (Railroads); Rolling contact; Steering; Train track dynamics; Wheels
• Old TRIS Terms: Wheel creep
• Subject Areas: Public Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00456251
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 27 2004 10:01PM