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Numerical Simulation of Static Seal Contact Mechanics Including Hydrostatic Load at the Contacting Interface
Luleå University of Technology, Department of Engineering Sciences and Mathematics.ORCID iD: 0000-0002-3085-2031
Saint-Gobain, Bristol, RI 02809, USA.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-9110-2819
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-7029-1112
2021 (English)In: Lubricants, ISSN 2075-4442, Vol. 9, no 1, article id 1Article in journal (Refereed) Published
Abstract [en]

A finite element model of a static seal assembled in its housing has been built and is utilized to study how the seal deforms under varying loading conditions. The total contact load on the sealing surface is balanced by the sealed fluid pressure and the friction between the seal and the housing sidewall perpendicular to the sealing surface. The effect of the sealed fluid pressure between the sealing surfaces was investigated and the simulation showed that the surface profile is distorted due to the hydrostatic pressure. We study the distorted contact profile with varying sealed fluid pressure and propose five parameters to describe the corresponding contact pressure profile. One of these parameters, overshoot pressure, a measure of the difference between maximum contact pressure and the sealed fluid pressure, is an indicator of sealing performance. The simulations performed show different behaviors of the overshoot pressure with sealed fluid pressure for cosinusoidal and parabolic surfaces with the same peak to valley (PV) value. 

Place, publisher, year, edition, pages
Switzerland: MDPI, 2021. Vol. 9, no 1, article id 1
Keywords [en]
static seal, contact mechanics, hydrostatic load
National Category
Other Mechanical Engineering
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-82110DOI: 10.3390/lubricants9010001ISI: 000610408800001Scopus ID: 2-s2.0-85099303014OAI: oai:DiVA.org:ltu-82110DiVA, id: diva2:1512481
Funder
Swedish Research Council, 2017-04390
Note

Validerad;2021;Nivå 2;2021-01-05 (johcin)

Available from: 2020-12-23 Created: 2020-12-23 Last updated: 2025-02-14Bibliographically approved

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Huang, DeLarsson, RolandAlmqvist, Andreas

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