Non-Newtonian effects on the dynamic characteristics of one-dimensional slider bearings: Rabinowitsch fluid model

被引:37
作者
Lin, JR [1 ]
机构
[1] Nanya Inst Technol, Dept Mech Engn, Chungli 320, Taiwan
关键词
slider bearings; dynamic characteristics; non-Newtonian lubricants; Rabinowitsch fluid model;
D O I
10.1023/A:1016678208150
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The non-Newtonian effects of an isothermal incompressibe laminar-flow lubricant on the dynamic stiffness and damping characteristics of one-dimensional slider bearings are theoretically examined On the basis of Rabinowitsch fluid (cubic equation) model, the modified Reynolds equation considering bearing-squeeze action is derived to take into account the transient motion of the slider, and the non-Newtonian properties of lubricants. Applying a small perturbation technique, both the steady-state performance and the dynamic characteristics are evaluated. According to the results, the steady film pressure, load-carrying capacity, and the dynamic stiffness and damping behaviors are significantly affected by the values of the dimensionless nonlinear factor accounting for non-Newtonian effects, the wedge parameter of a slider profile and the squeeze number of bearing-squeeze action.
引用
收藏
页码:237 / 243
页数:7
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