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    An Analytical Model of Four Point Contact Rolling Element Ball Bearings

    Source: Journal of Tribology:;2016:;volume( 138 ):;issue: 003::page 31404
    Author:
    Halpin, Jacob D.
    ,
    Tran, Anh N.
    DOI: 10.1115/1.4033134
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The purpose of this work is to establish an analytical model and standard way to predict the performance characteristics of a fourpoint contact, or gothic arch type, rolling element ball bearing. Classical rolling element bearing theory, as developed by Jones, has been extended to include the complex kinematics of the fourpoint contact bearing; thereby providing complete elementwise attitude and internal load distribution of the bearing under operating conditions. Standard performance parameters, such as element contact stresses, contact angles, inner ring deflections, nonlinear stiffness's, torque, and L10 life, are solved explicitly via standard Newton–Raphson techniques. Race control theory is replaced with a minimum energy state theory to allow both spin and slip to occur at the balltoraceway contact. The developed fourpoint model was programed within the orbis software program. Various test cases are analyzed and key analytical results are compared with the Jones fourpoint contact ball bearing analysis program, the Wind Turbine Design Guideline, DG03, and traditional twopoint (angular contact) analysis codes. Model results for the internal distribution of ball loads and contact angles match the Jones program extremely well for all cases considered. Some differences are found with the DG03 analysis methods, and it is found that modeling a fourpoint contact bearing by overlaying two opposed angular contact bearings can result in gross errors.
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      An Analytical Model of Four Point Contact Rolling Element Ball Bearings

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    http://yetl.yabesh.ir/yetl1/handle/yetl/162702
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    contributor authorHalpin, Jacob D.
    contributor authorTran, Anh N.
    date accessioned2017-05-09T01:33:54Z
    date available2017-05-09T01:33:54Z
    date issued2016
    identifier issn0742-4787
    identifier otherht_138_08_081701.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/162702
    description abstractThe purpose of this work is to establish an analytical model and standard way to predict the performance characteristics of a fourpoint contact, or gothic arch type, rolling element ball bearing. Classical rolling element bearing theory, as developed by Jones, has been extended to include the complex kinematics of the fourpoint contact bearing; thereby providing complete elementwise attitude and internal load distribution of the bearing under operating conditions. Standard performance parameters, such as element contact stresses, contact angles, inner ring deflections, nonlinear stiffness's, torque, and L10 life, are solved explicitly via standard Newton–Raphson techniques. Race control theory is replaced with a minimum energy state theory to allow both spin and slip to occur at the balltoraceway contact. The developed fourpoint model was programed within the orbis software program. Various test cases are analyzed and key analytical results are compared with the Jones fourpoint contact ball bearing analysis program, the Wind Turbine Design Guideline, DG03, and traditional twopoint (angular contact) analysis codes. Model results for the internal distribution of ball loads and contact angles match the Jones program extremely well for all cases considered. Some differences are found with the DG03 analysis methods, and it is found that modeling a fourpoint contact bearing by overlaying two opposed angular contact bearings can result in gross errors.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleAn Analytical Model of Four Point Contact Rolling Element Ball Bearings
    typeJournal Paper
    journal volume138
    journal issue3
    journal titleJournal of Tribology
    identifier doi10.1115/1.4033134
    journal fristpage31404
    journal lastpage31404
    identifier eissn1528-8897
    treeJournal of Tribology:;2016:;volume( 138 ):;issue: 003
    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
    yabeshDSpacePersian