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CHEN Shujiang
LU Changhou
School of Mechanical Engineering,
Shandong University,
Jinan 250061, China
LI Lei
Jinan Information Market,
Jinan 250061, China
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FLUID FLOW SEPARATION CHARACTER ON
NOVEL HYBRID JOURNAL BEARING*
Abstract:
The influence of the structure and running parameters of a novel spiral oil wedge hybrid journal bearing on the fluid flow trace is investigated. The governing equation of the flow trace of lubricant is set up, and the simulation is carried out by using finite difference method. The results show that the lubricant flow status and end leakage quantity are greatly influenced by spiral angle, and that the rotating speed has little influence on the flow status. With advisable geometry design, the separation of lubricant between different oil wedges can be obtained, which can decrease the temperature rise effectively.
Key words:
Fluid flow separation character Spiral oil wedge Flow status Hybrid journal bearing
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