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    Dimensional Discussion of Traction Force Vector on Ball/Raceway Interface and Study of Bearing Dynamic Behavior

    Source: Journal of Tribology:;2023:;volume( 145 ):;issue: 009::page 91108-1
    Author:
    Ma, Shuaijun
    ,
    Yin, Yanjing
    ,
    Zhu, Linbo
    ,
    Yan, Ke
    ,
    Zhu, Yongsheng
    DOI: 10.1115/1.4062375
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: As a crucial component, rolling bearings directly determine the reliability of rotating equipment. However, current dynamic models for predicting the bearing performance either ignore the velocity and stress dispersion at the ball/raceway interface or fail to consider the spin moment generated within the interface. To address this issue, the discrete features of the velocity and stress distribution are considered in this paper, and the micro-element approach is used to construct formulas to obtain the traction vectors in two and three dimensions, respectively. Two bearing dynamic models are further developed for these two types of equations: one model considers the spin moment at the interface owing to unequal contact angles between the ball and the two raceways, while the other model ignores this moment. The reliability of these models is validated by comparison with experimental test results, including cage speed and oil film thickness. The predictions from the quasi-static model are used as theoretical values to compare the ability of the two models to simulate bearing performance under different operating conditions. The results show that the prediction results of the model considering the spin moment are closer to the theoretical values than those of the model ignoring this moment. However, the moment increases the friction at the ball/raceway interface, causing this model to underestimate the extent of bearing sliding.
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      Dimensional Discussion of Traction Force Vector on Ball/Raceway Interface and Study of Bearing Dynamic Behavior

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4294959
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    contributor authorMa, Shuaijun
    contributor authorYin, Yanjing
    contributor authorZhu, Linbo
    contributor authorYan, Ke
    contributor authorZhu, Yongsheng
    date accessioned2023-11-29T19:41:36Z
    date available2023-11-29T19:41:36Z
    date copyright6/13/2023 12:00:00 AM
    date issued6/13/2023 12:00:00 AM
    date issued2023-06-13
    identifier issn0742-4787
    identifier othertrib_145_9_091108.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4294959
    description abstractAs a crucial component, rolling bearings directly determine the reliability of rotating equipment. However, current dynamic models for predicting the bearing performance either ignore the velocity and stress dispersion at the ball/raceway interface or fail to consider the spin moment generated within the interface. To address this issue, the discrete features of the velocity and stress distribution are considered in this paper, and the micro-element approach is used to construct formulas to obtain the traction vectors in two and three dimensions, respectively. Two bearing dynamic models are further developed for these two types of equations: one model considers the spin moment at the interface owing to unequal contact angles between the ball and the two raceways, while the other model ignores this moment. The reliability of these models is validated by comparison with experimental test results, including cage speed and oil film thickness. The predictions from the quasi-static model are used as theoretical values to compare the ability of the two models to simulate bearing performance under different operating conditions. The results show that the prediction results of the model considering the spin moment are closer to the theoretical values than those of the model ignoring this moment. However, the moment increases the friction at the ball/raceway interface, causing this model to underestimate the extent of bearing sliding.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleDimensional Discussion of Traction Force Vector on Ball/Raceway Interface and Study of Bearing Dynamic Behavior
    typeJournal Paper
    journal volume145
    journal issue9
    journal titleJournal of Tribology
    identifier doi10.1115/1.4062375
    journal fristpage91108-1
    journal lastpage91108-13
    page13
    treeJournal of Tribology:;2023:;volume( 145 ):;issue: 009
    contenttypeFulltext
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