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RESEARCH PAPERS

A Simple Dynamic Model For Simulating Draft-Gear Behavior In Rail-Car Impacts

[+] Author and Article Information
T.-K. Hsu, D. A. Peters

Washington University, St. Louis, Mo.

J. Eng. Ind 100(4), 492-496 (Nov 01, 1978) (5 pages) doi:10.1115/1.3439467 History: Received December 27, 1977; Online July 15, 2010

Abstract

A new, simple dynamic model is developed for use in simulating draft-gear behavior in rail-car impacts. The model is based on an analysis of the individual components inside several types of draft gears. The transition from kinetic to static friction during the impact is included. Comparisons with drop-hammer tests and full-scale impacts show good agreement with the experimental forces and deflections. In particular two very important phenomena are correctly simulated: 1) the rise in force just before maximum travel, and 2) the stick-slip-grab phenomenon during impact.

Copyright © 1978 by ASME
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