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    Thermal Elastohydrodynamic Lubrication of Rough Surfaces

    Source: Journal of Tribology:;1990:;volume( 112 ):;issue: 002::page 341
    Author:
    F. Sadeghi
    ,
    Ping C. Sui
    DOI: 10.1115/1.2920262
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A numerical solution to the problem of thermal and compressible elastohydrodynamic (EHD) lubrication of rolling/sliding rough surfaces was obtained by neglecting the transient effects. The technique involves the simultaneous solution of thermal Reynolds and modified elasticity equations using the Newton-Raphson technique, and the energy equation using the control volume finite element method. The effects of various loads, amplitude of asperity, and radius of curvature of asperity have been investigated. Results have been presented for moderate dimensionless load of W = 9.03 × 10−5 to heavy load of W = 2.3 × 10−4 at the speed of U* = 9.2 × 10−11 . The results indicate that surface roughness significantly affect the pressure, temperature, and traction in EHD lubrication.
    keyword(s): Surface roughness , Elastohydrodynamic lubrication , Stress , Equations , Lubrication , Electrohydrodynamics , Temperature , Pressure , Elasticity , Traction AND Finite element methods ,
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      Thermal Elastohydrodynamic Lubrication of Rough Surfaces

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/107651
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    • Journal of Tribology

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    contributor authorF. Sadeghi
    contributor authorPing C. Sui
    date accessioned2017-05-08T23:33:55Z
    date available2017-05-08T23:33:55Z
    date copyrightApril, 1990
    date issued1990
    identifier issn0742-4787
    identifier otherJOTRE9-28482#341_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/107651
    description abstractA numerical solution to the problem of thermal and compressible elastohydrodynamic (EHD) lubrication of rolling/sliding rough surfaces was obtained by neglecting the transient effects. The technique involves the simultaneous solution of thermal Reynolds and modified elasticity equations using the Newton-Raphson technique, and the energy equation using the control volume finite element method. The effects of various loads, amplitude of asperity, and radius of curvature of asperity have been investigated. Results have been presented for moderate dimensionless load of W = 9.03 × 10−5 to heavy load of W = 2.3 × 10−4 at the speed of U* = 9.2 × 10−11 . The results indicate that surface roughness significantly affect the pressure, temperature, and traction in EHD lubrication.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleThermal Elastohydrodynamic Lubrication of Rough Surfaces
    typeJournal Paper
    journal volume112
    journal issue2
    journal titleJournal of Tribology
    identifier doi10.1115/1.2920262
    journal fristpage341
    journal lastpage346
    identifier eissn1528-8897
    keywordsSurface roughness
    keywordsElastohydrodynamic lubrication
    keywordsStress
    keywordsEquations
    keywordsLubrication
    keywordsElectrohydrodynamics
    keywordsTemperature
    keywordsPressure
    keywordsElasticity
    keywordsTraction AND Finite element methods
    treeJournal of Tribology:;1990:;volume( 112 ):;issue: 002
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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