OPTIMIZING RAILROAD FREIGHT CAR TRUCK SUSPENSION SYSTEMS HAVING COULOMB DAMPING

This paper describes the design process followed in developing a 100 ton freight car truck suspension system having coulomb damping. Classical linear vibration analysis was used for the conceptual design phase. Within the constraint placed upon truck suspension systems, a constant damping parameter, i.e., the ratio of friction force to static force imparted by the base, for all load conditions was established as a design goal. Optimization of the actual design parameters and comparison to existing truck suspensions was accomplished using the latest vehicle model developed by the AAR/TTD.

  • Supplemental Notes:
    • Contributed by the Rail Transportation Division of ASME for presentation at the Winter Annual Meeting, Atlanta, Georgia, November 27-December 2, 1977.
  • Corporate Authors:

    American Society of Mechanical Engineers

    Two Park Avenue
    New York, NY  USA  10016-5990
  • Authors:
    • Bullock, R L
    • Cooley, D B
  • Publication Date: 1977

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 6 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00168014
  • Record Type: Publication
  • Source Agency: American Society of Mechanical Engineers
  • Report/Paper Numbers: 77-WA/RT-6 Conf Paper
  • Files: TRIS
  • Created Date: Jan 30 1978 12:00AM