表面结构对滑动接触液膜厚度和接触温度影响的实验研究

IF 6.3 1区 工程技术 Q1 ENGINEERING, MECHANICAL
D. Bulut, N. Bader
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引用次数: 0

摘要

研究了t形表面结构端面密封与常规端面密封的流体动力润滑性能。本研究探讨了表面结构如何影响液膜厚度和接触温度。采用激光诱导荧光法测量液膜厚度,采用红外热像仪测量接触面温度。随后,比较了结构密封和常规密封的测量膜厚度和接触温度。结果表明,在表面结构的发散区形成空化,而在收敛区流体压力增大。这种不对称压力分布导致净正流体举升力,影响液膜厚度和接触温度。因此,更高的薄膜厚度和更低的接触温度被观察到的结构密封。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Experimental investigation of the influence of surface structures on hydrodynamic fluid film thickness and contact temperatures in sliding contacts

Experimental investigation of the influence of surface structures on hydrodynamic fluid film thickness and contact temperatures in sliding contacts

The hydrodynamic lubrication performance of face seals with T-shaped surface structures and conventional face seals is investigated. This study examines how surface structures influence fluid film thickness and contact temperatures. Fluid film thickness is measured using the laser-induced fluorescence method, and contact temperatures are measured using infrared thermography. Subsequently, the measured film thicknesses and contact temperatures for both structured and conventional seals are compared. It is shown that cavitation forms in the divergent regions of the surface structures while in the convergent regions, fluid pressure increases. This asymmetric pressure distribution results in a net positive fluid lifting force which affects both fluid film thickness and contact temperatures. Consequently, higher film thicknesses and lower contact temperatures are observed for the structured seals.

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来源期刊
Friction
Friction Engineering-Mechanical Engineering
CiteScore
12.90
自引率
13.20%
发文量
324
审稿时长
13 weeks
期刊介绍: Friction is a peer-reviewed international journal for the publication of theoretical and experimental research works related to the friction, lubrication and wear. Original, high quality research papers and review articles on all aspects of tribology are welcome, including, but are not limited to, a variety of topics, such as: Friction: Origin of friction, Friction theories, New phenomena of friction, Nano-friction, Ultra-low friction, Molecular friction, Ultra-high friction, Friction at high speed, Friction at high temperature or low temperature, Friction at solid/liquid interfaces, Bio-friction, Adhesion, etc. Lubrication: Superlubricity, Green lubricants, Nano-lubrication, Boundary lubrication, Thin film lubrication, Elastohydrodynamic lubrication, Mixed lubrication, New lubricants, New additives, Gas lubrication, Solid lubrication, etc. Wear: Wear materials, Wear mechanism, Wear models, Wear in severe conditions, Wear measurement, Wear monitoring, etc. Surface Engineering: Surface texturing, Molecular films, Surface coatings, Surface modification, Bionic surfaces, etc. Basic Sciences: Tribology system, Principles of tribology, Thermodynamics of tribo-systems, Micro-fluidics, Thermal stability of tribo-systems, etc. Friction is an open access journal. It is published quarterly by Tsinghua University Press and Springer, and sponsored by the State Key Laboratory of Tribology (TsinghuaUniversity) and the Tribology Institute of Chinese Mechanical Engineering Society.
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