Rubber O-rings are widely applied in the static and dynamic seals of machinery, energy, chemical, aviation, and other fields. Mechanical behavior and sealing performance of the O-ring were investigated in this paper. Effects of precompression amount, fluid pressure, friction coefficient on the static and dynamic sealing performances of the O-ring were studied. The results show that the maximum stress appears on the inside but not surface of the O-ring. The static sealing performance increases with the increasing of fluid pressure and compression amount. Reciprocating dynamic sealing performance of the rubber O-ring is different with its static sealing performance; the stress distribution and deformation are changing in reciprocating motion. Sealing performance in outward stroke is better than it in the inward stroke. Overturn of the O-ring occurs when the friction torque is greater than the torque that caused by fluid pressure in the inward stroke. Distortion, bitten, and fatigue failure are the main failure modes of the O-ring in the dynamic seal. Those results can be used in design, installation, and operation of rubber O-rings in static and dynamic seals.
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July 2018
Research-Article
Investigation of Static and Dynamic Seal Performances of a Rubber O-Ring
Jie Zhang,
Jie Zhang
School of Mechatronic Engineering,
Southwest Petroleum University,
Chengdu 610500, China
e-mail: longmenshao@163.com
Southwest Petroleum University,
Chengdu 610500, China
e-mail: longmenshao@163.com
Search for other works by this author on:
Jingxuan Xie
Jingxuan Xie
School of Mechatronic Engineering,
Southwest Petroleum University,
Chengdu 610500, China
e-mail: 1870591823@qq.com
Southwest Petroleum University,
Chengdu 610500, China
e-mail: 1870591823@qq.com
Search for other works by this author on:
Jie Zhang
School of Mechatronic Engineering,
Southwest Petroleum University,
Chengdu 610500, China
e-mail: longmenshao@163.com
Southwest Petroleum University,
Chengdu 610500, China
e-mail: longmenshao@163.com
Jingxuan Xie
School of Mechatronic Engineering,
Southwest Petroleum University,
Chengdu 610500, China
e-mail: 1870591823@qq.com
Southwest Petroleum University,
Chengdu 610500, China
e-mail: 1870591823@qq.com
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received August 21, 2017; final manuscript received December 19, 2017; published online February 22, 2018. Assoc. Editor: Alan Palazzolo.
J. Tribol. Jul 2018, 140(4): 042202 (11 pages)
Published Online: February 22, 2018
Article history
Received:
August 21, 2017
Revised:
December 19, 2017
Citation
Zhang, J., and Xie, J. (February 22, 2018). "Investigation of Static and Dynamic Seal Performances of a Rubber O-Ring." ASME. J. Tribol. July 2018; 140(4): 042202. https://doi.org/10.1115/1.4038959
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