The paper describes a means of evaluating freight car draft-gear designs through analytical studies of train action. New designs and design variations may be tested through simulation at an early stage in their development. The simulation approach described in the paper should be of interest to draft-gear manufacturers as well as to railroads. Although a manufacturer may experimentally develop a draft gear to provide a desired characteristic, the simulation approach described will permit selection of the most promising characteristic before component design has started. In turn, the railroad may select on the basis of simulation the draft-gear device best suited to its operating conditions. Included in the paper along with a brief description of the analytical approach are examples illustrating how data required for the input to simulation programs may be developed. A form of performance evaluation for draft-gear devices is suggested. Also included for comparison purposes are results of typical train simulations along data from real-life tests of trains equipped with end-of-car hydraulic draft-gear devices.

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  • Supplemental Notes:
    • This paper appeared in Anthology of Rail Vehicle Dynamics, Volume 2: Effects of Train Action and Rail Car Vibration. The anthology was sponsored by the Rail Transportation Division, ASME. Presented at Winter Annual Meeting and Energy Systems Exposition, Pittsburgh, Pa., Nov 12-17, 1967.
  • Corporate Authors:

    American Society of Mechanical Engineers

    Two Park Avenue
    New York, NY  United States  10016-5990
  • Authors:
    • WILSON, J T
    • Thivierge, J
  • Publication Date: 1971

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Filing Info

  • Accession Number: 00047418
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 14 1976 12:00AM