The dynamic response of a six-axle locomotive subjected to vertical and/or lateral track irregularities is analyzed by a 30 degree-of-freedom locomotive model. This model, which is currently partially validated, will soon be available to Track-Train Dynamics participants. The hunting speeds of the locomotive, and variable relative stiffnesses between primary and secondary suspensions, are evaluated using a 21 degree-of-freedom, Lateral Stability Model. The effects of primary and secondary suspension stiffness on the dynamic and tractive characteristics of the locomotive are studied. A methodology for selecting the primary and secondary locomotive truck suspension stiffnesses, which provide "optimum" tractive effort and minimize the undesirable behavior, is presented.

  • Supplemental Notes:
    • Contributed by the Rail Transportation Division of the ASME for presentation at the Joint ASME-IEEE Railroad Conference held in Washington, D.C., March 30-April 1, 1977.
  • Corporate Authors:

    American Society of Mechanical Engineers

    Two Park Avenue
    New York, NY  United States  10016-5990
  • Authors:
    • Garg, V K
    • Hawthorne, K L
    • Chang, E H
    • Hartmann, P W
  • Publication Date: 1977-3-30

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 13 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00152427
  • Record Type: Publication
  • Source Agency: American Society of Mechanical Engineers
  • Report/Paper Numbers: Paper 77-RT-6 Conf Paper
  • Files: TRIS
  • Created Date: May 11 1977 12:00AM