EHD Analysis, Including Structural Inertia Effects and a Mass-Conserving Cavitation Model

[+] Author and Article Information
D. Bonneau, D. Guines

Laboratoire de Mécanique des Solides, Université de Poitiers, Unité de Recherche associée C.N.R.S. U.R.A. 861, 4 Avenue de Varsovie, Angoulême, France 16021

J. Frêne, J. Toplosky

Renault S. A. Direction des Etudes, 92508 Rueil Malmaison Cedex France

J. Tribol 117(3), 540-547 (Jul 01, 1995) (8 pages) doi:10.1115/1.2831288 History: Received February 15, 1994; Revised July 19, 1994; Online January 24, 2008


The dynamic behavior of two elastic connecting-rod bearings is studied. The Newton-Raphson method and 8-node isoparametric elements for the lubrication analysis are used. For the structural analysis, 3-D elasticity assumptions are made and 20 nodes isoparametric elements are used. Inertia forces due to the kinematics of the structure are incorporated with the effects of the hydrodynamic pressures in the elastic deformations of the bearing. Comparisons with Goenka‘s results are presented for the General Motors connecting-rod bearing. A mass-conserving model used in conjunction with Murty‘s algorithm is presented for the transient evolution of the cavitation area. This model is applied for the EHD study of a Renault connecting-rod bearing.

Copyright © 1995 by The American Society of Mechanical Engineers
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