Open AccessNumerical simulation model of a reciprocating seal based on the mixed‐lubrication theory
Author(s) -
Xiang Chong,
Wang Zixi,
Jia Xiaohong,
Guo Fei
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8948
Subject(s) - asperity (geotechnical engineering) , lubrication , mechanics , contact mechanics , finite element method , materials science , seal (emblem) , reciprocating motion , deformation (meteorology) , fluid mechanics , reynolds equation , lubrication theory , mechanical engineering , thermodynamics , physics , composite material , engineering , art , visual arts , turbulence , reynolds number , gas compressor
Based on the mixed‐lubrication theory, a numerical simulation model of a reciprocating seal is established. The model includes finite element, fluid mechanics, contact mechanics and deformation mechanics analyses. The hydrodynamic analysis uses elastohydrodynamic lubrication theory and inverse hydrodynamic lubrication to obtain the relationship between fluid pressure and film thickness, while the contact mechanics analysis obtains the relationship between the asperity contact pressure and film thickness. The influence of the coefficient matrix and static contact pressure is calculated by the finite element analysis. The coupling relationship among the fluid pressure, asperity contact pressure and static contact pressure is provided by the influence coefficient method of the deformation mechanics analysis. The calculation results of the numerical model are verified by experimental results, which are measured by the bench test developed by the authors.