A Numerical Model of a Reciprocating Rod Seal With a Secondary Lip

A numerical model of an elastomeric reciprocating hydraulic rod seal, with both a primary and a secondary lip, has been developed. It is applicable to cases in which the stroke length is significantly larger than the seal width. Coupled fluid mechanics, contact mechanics, and deformation analyses ar...

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Bibliographic Details
Published in:Tribology transactions 2008-03, Vol.51 (2), p.119-127
Main Authors: Yang, Bo, Salant, Richard F.
Format: Article
Language:English
Subjects:
Applied sciences
Drives
Effectiveness
EHL
Elastomeric Seals
Elastomers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Hydraulics
Industrial polymers. Preparations
Lip Seals
Machine components
Mechanical contact (friction...)
Mechanical engineering. Machine design
Numerical analysis
Physics
Polymer industry, paints, wood
Reciprocating Seals
Rod Seals
Seals
Seals and gaskets
Solid mechanics
Speed variators, torque converters. Hydraulic drives and controls, pneumatic drives and controls, fluids and components, hydraulic motors, pneumatic motors
Structural and continuum mechanics
Technology of polymers
Tribology
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Summary:A numerical model of an elastomeric reciprocating hydraulic rod seal, with both a primary and a secondary lip, has been developed. It is applicable to cases in which the stroke length is significantly larger than the seal width. Coupled fluid mechanics, contact mechanics, and deformation analyses are applied to each lip. Mass conservation and the pressure of the intervening fluid couple the two lips to each other. The leakage, the film thickness distribution, the fluid and contact pressure distributions, and the friction force are predicted for both the outstroke and the instroke for a typical seal, operating with mixed lubrication.
ISSN:1040-2004
1547-397X
DOI:10.1080/10402000701691746