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    Point Contact Elastohydrodynamic Lubrication and Wear in Intermittent Motion

    Source: Journal of Tribology:;2024:;volume( 146 ):;issue: 012::page 124103-1
    Author:
    Zhang, Mingyu
    ,
    Wang, Xinqing
    ,
    Han, Yiming
    ,
    Wang, Jing
    ,
    Venner, C. H.
    DOI: 10.1115/1.4065662
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Intermittent motion is a complex process that involves constant speed, deceleration, static stages, and acceleration. Theoretical analysis suggests that shortening the period of intermittent motion can increase the film thickness during static stages, thereby extending the life of the part. Currently, an increasing number of studies are focusing on small oscillatory movements or vibrations. However, the impact of intermittent motion cycles on the film thickness and wear in the contact area still needs to be investigated. Optical interference and acoustic emission (AE) were employed as experimental methods to investigate simple sliding point contact intermittent motion. The lubrication state transition of full film-starvation-wear in the contact area was observed and the experimental results confirmed the correctness of the elastohydrodynamic lubrication (EHL) theoretical analysis. Additionally, the regularity of starvation and AE signal change with time during intermittent motion were summarized. An in-depth analysis of the reasons why intermittent motion with a short period generates less wear was performed. This analysis provides novel ideas to reduce wear of intermittent motion mechanisms. Overall, this research contributes to the understanding of the wear during intermittent motion and provides essential insights for wear reduction in this area.
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      Point Contact Elastohydrodynamic Lubrication and Wear in Intermittent Motion

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    contributor authorZhang, Mingyu
    contributor authorWang, Xinqing
    contributor authorHan, Yiming
    contributor authorWang, Jing
    contributor authorVenner, C. H.
    date accessioned2024-12-24T18:38:50Z
    date available2024-12-24T18:38:50Z
    date copyright8/30/2024 12:00:00 AM
    date issued2024
    identifier issn0742-4787
    identifier othertrib_146_12_124103.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4302496
    description abstractIntermittent motion is a complex process that involves constant speed, deceleration, static stages, and acceleration. Theoretical analysis suggests that shortening the period of intermittent motion can increase the film thickness during static stages, thereby extending the life of the part. Currently, an increasing number of studies are focusing on small oscillatory movements or vibrations. However, the impact of intermittent motion cycles on the film thickness and wear in the contact area still needs to be investigated. Optical interference and acoustic emission (AE) were employed as experimental methods to investigate simple sliding point contact intermittent motion. The lubrication state transition of full film-starvation-wear in the contact area was observed and the experimental results confirmed the correctness of the elastohydrodynamic lubrication (EHL) theoretical analysis. Additionally, the regularity of starvation and AE signal change with time during intermittent motion were summarized. An in-depth analysis of the reasons why intermittent motion with a short period generates less wear was performed. This analysis provides novel ideas to reduce wear of intermittent motion mechanisms. Overall, this research contributes to the understanding of the wear during intermittent motion and provides essential insights for wear reduction in this area.
    publisherThe American Society of Mechanical Engineers (ASME)
    titlePoint Contact Elastohydrodynamic Lubrication and Wear in Intermittent Motion
    typeJournal Paper
    journal volume146
    journal issue12
    journal titleJournal of Tribology
    identifier doi10.1115/1.4065662
    journal fristpage124103-1
    journal lastpage124103-13
    page13
    treeJournal of Tribology:;2024:;volume( 146 ):;issue: 012
    contenttypeFulltext
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