An analytical model is developed for determining the dynamic curving performance of rail transit vehicles. The dynamic wheel/rail interaction forces, vehicle suspension and body motions and track displacement are computed, as well as wheel and rail wear indices. The model incorporates a nonlinear, multi-point contact wheel/rail geometry characterization and is directly applicable to conventional, self-steered radial and forced steered (linkages between the carbody-bolster-wheelsets) truck configurations. A limited set of parametric studies are conducted in which dynamic forces and wear indices for conventional, radial and forced steered tracks are determined for new AAR and Heumann wheel profiles. Available experimental dynamic curving field test data is reviewed in the context of the model.

  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Mechanical Engineering
    Cambridge, MA  United States  02139

    Urban Mass Transportation Administration

    Office of Technical Assistance & Safety, 400 7th Street, SW
    Washington, DC  United States  20590
  • Authors:
    • Wormley, D N
    • Hedrick, J Karl
    • Nagurka, M L
  • Publication Date: 1984-6

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 232 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00390700
  • Record Type: Publication
  • Report/Paper Numbers: UMTA-MA-06-0025-84-1Final Rpt., DOF TSC-UMTA-84-6
  • Contract Numbers: DTRS 57-80C-00152
  • Files: TRIS, USDOT
  • Created Date: Dec 30 1984 12:00AM