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Technical Briefs

Approximate Analytical Model for Hertzian Elliptical Wheel/Rail or Wheel/Crossing Contact Problems

[+] Author and Article Information
F. D. Fischer1

Institute of Mechanics, Montanuniversität Leoben, Franz-Josef-Strasse 18, A-8700 Leoben, Austriamechanik@unileoben.ac.at

M. Wiest2

 Materials Center Leoben, Franz-Josef-Strasse 13, A-8700 Leoben, Austria

1

Corresponding author.

2

Formerly at Materials Center, Leoben Forschung GmbH, Roseggerstrasse 12, A-8700 Leoben, Austria.

J. Tribol 130(4), 044501 (Aug 01, 2008) (3 pages) doi:10.1115/1.2958074 History: Received February 15, 2007; Revised June 03, 2008; Published August 01, 2008

The Hertzian contact theory is approximated according to a concept by Tanaka (2001, “A New Calculation Method of Hertz Elliptical Contact Pressure  ,” ASME J. Tribol., 123, pp. 887–889) yielding simple analytical expressions for the elliptical semi-axes, the maximum contact pressure, the mutual approach and the contact spring constant. Several configurations are compared using the exact Hertz theory and the current approximation. The results agree within technical accuracy.

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Copyright © 2008 by American Society of Mechanical Engineers
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Grahic Jump Location
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Rail-crossing configuration

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