期刊
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
卷 190, 期 15-17, 页码 2051-2062出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0045-7825(00)00221-8
关键词
elastohydrodynamic lubrication; free-boundary problems; Koiter model; Reynolds equation; finite elements
The aim of this work is to present a numerical algorithm for solving a new elastohydrodynamic free-boundary problem which models the lubricant pressure behaviour by means of Reynolds equation, jointly with the free-boundary model of Elrod-Adams for cavitation and the elastic deformation of the bearing with the Koiter shell model; a non-local constraint on the pressure is imposed. The proposed algorithm uncouples the hydrodynamic and elastic parts to achieve a fixed point. For the two-dimensional problem, a combination of finite elements, transport-diffusion and duality methods is performed. For the three-dimensional elastic problem, a finite element discretization is applied to a mixed formulation for the Koiter model. (C) 2001 Elsevier Science B.V. All rights reserved.
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