VISCOELASTIC SQUEEZE FILM CHARACTERISTICS WITH INERTIA EFFECTS BETWEEN 2 PARALLEL CIRCULAR PLATES UNDER SINUSOIDAL MOTION

被引:11
作者
HASHIMOTO, H
机构
[1] Department of Mechanical Engineering, Tokyo University, Hiratsuka, 259-12, 1117 Kitakaname, Kanagawa
来源
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME | 1994年 / 116卷 / 01期
关键词
D O I
10.1115/1.2927034
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In this paper, viscoelastic squeeze film characteristics subjected to fluid inertia effects are investigated theoretically in the case of parallel circular type squeeze films. In the development of modified lubrication equations, the nonlinear Maxwell model combining the Rabinowitsch model and Maxwell model is used as a constitutive equation for the viscoelastic fluids, and the inertia term in the momentum equation is approximated by the mean value averaged over the film thickness. Applying the modified lubrication equation to parallel circular type squeeze films under sinusoidal motion, the variation of the pressure distribution with time is calculated numerically for various types of fluids such as Newtonian, pseudo-plastic, linear Maxwell and nonlinear Maxwell fluids. Some numerical results are presented in graphic form, and the effects of inertia forces on the viscoelastic squeeze film characteristics are discussed.
引用
收藏
页码:161 / 166
页数:6
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