Implementation of the Contensou–Erismann tangent forces model in the Hertz contact problem |
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Authors: | Ivan I Kosenko Evgeniy B Aleksandrov |
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Affiliation: | (1) Department of Mechanical Engineering, State University of New York at Stony Brook, 11794-2300 Stony Brook, NY, USA;(2) Mechanical Engineering Department, Northwestern University, 2145 Sheridan Road, 60208 Evanston, IL, USA;(3) Mechanical Engineering Department, California Institute of Technology, 1200 E. California Blvd., 91125 Pasadena, CA, USA |
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Abstract: | In frame of the Hertz contact problem, an approximate model to compute resulting wrench of the dry friction tangent forces
is built up. The wrench consists of the total friction force and the drilling friction torque. An approach under consideration
develops in a natural way the contact model constructed earlier. The dry friction force and torque are integrated over the
contact elliptic area. Generally, an analytic computation of the integrals mentioned leads to the cumbersome calculation,
tens of terms, including rational functions depending in turn on complete elliptic integrals. To implement the elastic bodies
contact interaction computer model fast enough, one builds up an approximate model in the way initially proposed by Contensou. |
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