This paper discusses the random response of a seven degree of freedom, passenger truck model to lateral rail irregularities. Power spectral densities and root mean square levels of component displacements and contact forces are reported. The truck model used in the study allows lateral and yaw degrees of freedom for each wheelset, and lateral, yaw and roll freedoms for the truck frame. Linear creep relations are utilized for the rail-wheel contact forces. The lateral rail irregularities enter the analysis through the creep expressions. The results described in the paper were obtained using frequency domain techniques to solve the equations of motion. The reported results demonstrate that the guidance force needed when traveling over irregular rail at high speed utilizes a significant portion of the total available tangential force between wheel and rail.
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August 1975
This article was originally published in
Journal of Engineering for Industry
Research Papers
Railway Truck Response to Random Rail Irregularities
Neil K. Cooperrider
Neil K. Cooperrider
Arizona State University, Tempe, Arizona 85281
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Neil K. Cooperrider
Arizona State University, Tempe, Arizona 85281
J. Eng. Ind. Aug 1975, 97(3): 957-964
Published Online: August 1, 1975
Article history
Received:
September 24, 1974
Online:
July 15, 2010
Citation
Cooperrider, N. K. (August 1, 1975). "Railway Truck Response to Random Rail Irregularities." ASME. J. Eng. Ind. August 1975; 97(3): 957–964. https://doi.org/10.1115/1.3438710
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