Dynamic characteristics of a non-Newtonian lubrication mechanical seal with herringbone grooves considering cavitation effect-Reference-Cited by-同舟云学术

Dynamic characteristics of a non-Newtonian lubrication mechanical seal with herringbone grooves considering cavitation effect

Published:2023-06-13 Issue:9 Volume:237 Page:1768-1782
ISSN:1350-6501
Container-title:Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology

Author:

Liu Fuyu¹^ORCID,Yu Bo²^ORCID,Li Yongfan¹,Ren Baojie³,Hao Muming¹,Sun Xinhui¹,Wang Zengli¹^ORCID,Li Zhentao⁴^ORCID

Affiliation:

1. College of New Energy, China University of Petroleum (East China), Qingdao, China

2. Xi’an Aerospace Propulsion Institute, China Aerospace Science and Technology Corporation, Xi’an, China

3. Dongying Haisen Sealing Technology Co., Ltd, Dongying, China

4. Department of Mechanical and Control Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying, China

Abstract

This research investigated the effect of lubricant's non-Newtonian properties on dynamic characteristics of a herringbone grooved liquid film seal (HG-LFS) considering cavitation. A modified steady-state perturbation Reynolds equation of the non-Newtonian was derived. Visualized experiments were conducted to verify the accuracy of calculations. The non-Newtonian effect on stiffness, cavitation, damping coefficients, and other sealing performance of the liquid film seal at different velocity, pressure and film thickness were discussed and analyzed. The results indicate that the seal has larger stiffness and damping coefficients with the dilatant lubricant, the cavitation can be inhibited by the shearing-thinning lubricant, and the impact of non-Newtonian on the seal stability decreases with the increase of film thickness. This study would contribute to the design and theoretical research of liquid film seals.

Funder

National Key R&D Program of China

National Natural Science Foundation of China

Publisher

SAGE Publications

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1177/13506501231181271

Reference32 articles.

1. Suction effect of cavitation in the reverse-spiral-grooved mechanical face seals

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