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The Effects of Micro-dimple Texture on the Friction and Thermal Behavior of a Point Contact.

Parmar, Utsav Kamleshbhai
http://orcid.org/0000-0002-1113-0631
http://rave.ohiolink.edu/etdc/view?acc_num=wright1462365682

Abstract Details

2016, Master of Science in Mechanical Engineering (MSME), Wright State University, Mechanical Engineering.
This study investigates the effects of the micro-dimple texture on the friction and surface temperature performances of a ball-on-disk contact, operating under the speed and load ranges that cover typical gearing applications. Circular shaped micro-dimple arrays with different dimple center distances and dimple depths are implemented on the ball surface to quantify the impacts of these two parameters on the friction coefficient and the maximum ball surface temperature. In addition, the contacts of three surface texture combinations, namely micro-dimpled and polished ball surface versus polished disk surface, polished ball surface versus polished disk surface and ground ball surface versus ground disk surface, are compared to demonstrate any beneficial or detrimental effect of micro-dimples in heavily loaded high speed applications. This study adopts a thermal mixed EHL point contact model, whose capability and accuracy have been well demonstrated by comparing to the experimental measurements, to quantify the deterministic tribological behavior within the contact, allowing the exploration of the underlying mechanism that governs the role of micro-dimples in the elastohydrodynamic lubrication.
Sheng Li, Ph.D. (Advisor)
Ahsan Mian, Ph.D. (Committee Member)
Nikolai Priezjev, Ph.D. (Committee Member)
64 p.
Mechanical Engineering
Micro-dimple, Thermal EHL, Mixed Lubrication, Friction, Temperature

Recommended Citations

Citations

  • Parmar, U. K. (2016). The Effects of Micro-dimple Texture on the Friction and Thermal Behavior of a Point Contact. [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1462365682

    APA Style (7th edition)

  • Parmar, Utsav Kamleshbhai. The Effects of Micro-dimple Texture on the Friction and Thermal Behavior of a Point Contact. 2016. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1462365682.

    MLA Style (8th edition)

  • Parmar, Utsav Kamleshbhai. "The Effects of Micro-dimple Texture on the Friction and Thermal Behavior of a Point Contact." Master's thesis, Wright State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1462365682

    Chicago Manual of Style (17th edition)

wright1462365682
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© 2016, some rights reserved.Creative Commons License The Effects of Micro-dimple Texture on the Friction and Thermal Behavior of a Point Contact. by Utsav Kamleshbhai Parmar is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Wright State University and OhioLINK.