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    Non-Newtonian Thermal Analyses of Point EHL Contacts Using the Eyring Model

    Source: Journal of Tribology:;2005:;volume( 127 ):;issue: 001::page 70
    Author:
    Xiaoling Liu
    ,
    Motohiro Kaneta
    ,
    Ming Jiang
    ,
    Peiran Yang
    DOI: 10.1115/1.1843161
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A non-Newtonian numerical solution system for the thermal elastohydrodynamic lubrication (EHL) problems in point contacts has been developed. The Eyring rheology model has been used to describe the non-Newtonian flow of the lubricant. An effective viscosity has been defined for the Eyring fluid. The Newtonian solver can be applied easily to the non-Newtonian problems when the viscosity of the Newtonian fluid is replaced by the effective viscosity. A novel technique for the determination of the effective viscosity is proposed. Numerical solutions for the conventional point contact and normally crossing cylinders contact problems are presented and the effects of the entraining velocity, the load, the slide-roll ratio, and the characteristic shear stress of the Eyring fluid on the lubricating performance are discussed. The results indicate that the non-Newtonian thermal EHL theory predicts more realistic film temperatures and traction coefficients.
    keyword(s): Pressure , Temperature , Fluids , Viscosity , Lubricants , Stress , Shear (Mechanics) , Equations , Film thickness , Thermal analysis , Traction AND Cylinders ,
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      Non-Newtonian Thermal Analyses of Point EHL Contacts Using the Eyring Model

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/132737
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    • Journal of Tribology

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    contributor authorXiaoling Liu
    contributor authorMotohiro Kaneta
    contributor authorMing Jiang
    contributor authorPeiran Yang
    date accessioned2017-05-09T00:18:01Z
    date available2017-05-09T00:18:01Z
    date copyrightJanuary, 2005
    date issued2005
    identifier issn0742-4787
    identifier otherJOTRE9-28729#70_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/132737
    description abstractA non-Newtonian numerical solution system for the thermal elastohydrodynamic lubrication (EHL) problems in point contacts has been developed. The Eyring rheology model has been used to describe the non-Newtonian flow of the lubricant. An effective viscosity has been defined for the Eyring fluid. The Newtonian solver can be applied easily to the non-Newtonian problems when the viscosity of the Newtonian fluid is replaced by the effective viscosity. A novel technique for the determination of the effective viscosity is proposed. Numerical solutions for the conventional point contact and normally crossing cylinders contact problems are presented and the effects of the entraining velocity, the load, the slide-roll ratio, and the characteristic shear stress of the Eyring fluid on the lubricating performance are discussed. The results indicate that the non-Newtonian thermal EHL theory predicts more realistic film temperatures and traction coefficients.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleNon-Newtonian Thermal Analyses of Point EHL Contacts Using the Eyring Model
    typeJournal Paper
    journal volume127
    journal issue1
    journal titleJournal of Tribology
    identifier doi10.1115/1.1843161
    journal fristpage70
    journal lastpage81
    identifier eissn1528-8897
    keywordsPressure
    keywordsTemperature
    keywordsFluids
    keywordsViscosity
    keywordsLubricants
    keywordsStress
    keywordsShear (Mechanics)
    keywordsEquations
    keywordsFilm thickness
    keywordsThermal analysis
    keywordsTraction AND Cylinders
    treeJournal of Tribology:;2005:;volume( 127 ):;issue: 001
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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