Thermo-hydrodynamic Analysis of Journal Hybrid Bearing with Deep/shallow Pockets
Abstract
This paper presents a theoretical study concerning the oil film pressure distribution, temperature distribution and static characteristics of hybrid journal bearing with deep/shallow pockets. Based on laminar current theory, the coupling equations are established which including Reynolds equation to govern the pressure distribution, energy equation to control the temperature distribution, temperature-viscosity equation and appropriate boundary conditions. The variations of some static characteristics are analyzed under different eccentricity and rotational speed. The result indicates the load carrying capacity, the friction and the volume flow rate all decrease and the attitude angle increase up under thermo-hydrodynamic simulation. These changing trends become more obvious with the rotational speed and the eccentricity ratio rising up.
Keywords
Thermo-hydrodynamics, Hybrid bearing, Temperature distribution.
DOI
10.12783/dtmse/ammme2016/6858
10.12783/dtmse/ammme2016/6858
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