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research-article

Operation Parameters' Effect on Gaseous Bubbles in Lubricant of Groove Textured Journal Bearing

[+] Author and Article Information
Fanming Meng

The State Key Laboratory of Mechanical Transmission Chongqing University Chongqing 400044, China
fmmeng@cqu.edu.cn

Ling Zhang

College of Mechanical Engineering Chongqing University Chongqing 400044, China
zl00@cqu.edu.cn

Tao Long

The State Key Laboratory of Mechanical Transmission Chongqing University Chongqing 400044, China
youshide@qq.com

1Corresponding author.

ASME doi:10.1115/1.4036170 History: Received August 03, 2016; Revised February 03, 2017

Abstract

Operation parameter influences on the behavior of the gaseous bubbles in the lubricant for a groove textured journal bearing is studied under the consideration of the thermal effect of the bearing-shaft system. The influence is analyzed by simultaneously solving Rayleigh-Plesset (RP), energy and Reynolds equations. The computer code for the analyzing the bubble behavior is validated. Numerical results show that appropriately increasing the width-diameter ratio of the bearing and rotational speed of the shaft, or decreasing the applied load and inlet temperature of the lubricant, can decrease the maximum radius, collapse pressure and temperature of the bubble.

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