The transient simulation of the journal bearing temperature in the internal gear pumps is hard due to the complicated shaft motion caused by the complicated loads. In this paper, a thermohydrodynamic analysis method, based on dynamic mesh techniques, is presented with the application of the general computational fluid dynamics (CFD) code fluent. This method can simulate the complex whirling orbit induced temperature variation in internal gear pumps and has taken into account the conduction in the rotating and orbiting rotor of a hydrodynamic bearing. A test rig has been built according to the structure of an internal gear pump to carry out the validation. The results show that the model is reliable. The relationship between bearing temperature, leakage, and axial clearance in the internal gear pump has been studied. It is found that the bearing temperature will decrease slightly, while the leakage increases heavily with larger axial clearance. A thermohydrodynamic analysis of the self-lubricating bearing in the internal gear pump has been done based on this method. The results show that the pressure profile changes regularly with the whirling motion of the journal, while the whirling motion has little effect on the distribution of the temperature. Besides, the increase of the whirling radius will result in the decrease of the pressure profile and the increase of the temperature profile.
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January 2018
Research-Article
A Thermohydrodynamic Analysis of the Self-Lubricating Bearings Applied in Gear Pumps Using Computational Fluid Dynamics Method
Jintao Mo,
Jintao Mo
Institute of Advanced Manufacturing Engineering,
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Search for other works by this author on:
Chaohua Gu,
Chaohua Gu
Institute of Chemical Machinery Engineering,
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Search for other works by this author on:
Xiaohong Pan,
Xiaohong Pan
Institute of Advanced Manufacturing Engineering,
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Search for other works by this author on:
Shuiying Zheng,
Shuiying Zheng
Institute of Chemical Machinery Engineering,
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
e-mail: zhengshuiying@zju.edu.cn
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
e-mail: zhengshuiying@zju.edu.cn
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Guangyao Ying
Guangyao Ying
Electric Power Scientific Research Institute of
Zhejiang Province,
State Grid Corporation of China,
Hangzhou, Zhejiang 310027, China
Zhejiang Province,
State Grid Corporation of China,
Hangzhou, Zhejiang 310027, China
Search for other works by this author on:
Jintao Mo
Institute of Advanced Manufacturing Engineering,
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Chaohua Gu
Institute of Chemical Machinery Engineering,
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Xiaohong Pan
Institute of Advanced Manufacturing Engineering,
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
Shuiying Zheng
Institute of Chemical Machinery Engineering,
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
e-mail: zhengshuiying@zju.edu.cn
Zhejiang University,
38 Zheda Road,
Hangzhou, Zhejiang 310027, China
e-mail: zhengshuiying@zju.edu.cn
Guangyao Ying
Electric Power Scientific Research Institute of
Zhejiang Province,
State Grid Corporation of China,
Hangzhou, Zhejiang 310027, China
Zhejiang Province,
State Grid Corporation of China,
Hangzhou, Zhejiang 310027, China
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received October 7, 2016; final manuscript received April 12, 2017; published online July 21, 2017. Assoc. Editor: Alan Palazzolo.
J. Tribol. Jan 2018, 140(1): 011102 (9 pages)
Published Online: July 21, 2017
Article history
Received:
October 7, 2016
Revised:
April 12, 2017
Citation
Mo, J., Gu, C., Pan, X., Zheng, S., and Ying, G. (July 21, 2017). "A Thermohydrodynamic Analysis of the Self-Lubricating Bearings Applied in Gear Pumps Using Computational Fluid Dynamics Method." ASME. J. Tribol. January 2018; 140(1): 011102. https://doi.org/10.1115/1.4036835
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