Oil–air lubrication is widely used in the high-speed rotary machines; the oil is usually in the form of discrete droplets. The lubrication behavior of the oil droplet is rarely investigated. This paper investigates the effect of the oil droplet on lubrication performance based on the developed transient lubrication model with consideration of starvation conditions. The oil droplet is modeled as spherical segment with different heights, base radius, and positions, which will change the inlet oil supply conditions. The results show that the oil droplet with large size can generate thick oil film which is close to the one in fully flooded condition and can remain long time; the position of the oil droplet entering the contact region also has significant effect on the lubrication performance.
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July 2016
Research-Article
The Effect of Oil Droplet on the Lubrication Performance
Shengguang Zhang,
Shengguang Zhang
School of Mechanical Engineering,
Beijing Institute of Technology,
Beijing 100081, China
Beijing Institute of Technology,
Beijing 100081, China
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Wenzhong Wang,
Wenzhong Wang
School of Mechanical Engineering,
Beijing Institute of Technology,
Beijing 100081, China
e-mail: wangwzhong@bit.edu.cn
Beijing Institute of Technology,
Beijing 100081, China
e-mail: wangwzhong@bit.edu.cn
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Xinming Li,
Xinming Li
School of Mechanical Engineering,
Qingdao Technological University,
Qingdao, Shandong 266033, China
Qingdao Technological University,
Qingdao, Shandong 266033, China
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Feng Guo
Feng Guo
School of Mechanical Engineering,
Qingdao Technological University,
Qingdao, Shandong 266033, China
Qingdao Technological University,
Qingdao, Shandong 266033, China
Search for other works by this author on:
Shengguang Zhang
School of Mechanical Engineering,
Beijing Institute of Technology,
Beijing 100081, China
Beijing Institute of Technology,
Beijing 100081, China
Wenzhong Wang
School of Mechanical Engineering,
Beijing Institute of Technology,
Beijing 100081, China
e-mail: wangwzhong@bit.edu.cn
Beijing Institute of Technology,
Beijing 100081, China
e-mail: wangwzhong@bit.edu.cn
Xinming Li
School of Mechanical Engineering,
Qingdao Technological University,
Qingdao, Shandong 266033, China
Qingdao Technological University,
Qingdao, Shandong 266033, China
Feng Guo
School of Mechanical Engineering,
Qingdao Technological University,
Qingdao, Shandong 266033, China
Qingdao Technological University,
Qingdao, Shandong 266033, China
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received June 14, 2015; final manuscript received January 5, 2016; published online May 4, 2016. Assoc. Editor: Xiaolan Ai.
J. Tribol. Jul 2016, 138(3): 031506 (9 pages)
Published Online: May 4, 2016
Article history
Received:
June 14, 2015
Revised:
January 5, 2016
Citation
Zhang, S., Wang, W., Li, X., and Guo, F. (May 4, 2016). "The Effect of Oil Droplet on the Lubrication Performance." ASME. J. Tribol. July 2016; 138(3): 031506. https://doi.org/10.1115/1.4032959
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