基于均匀模型的CO2/油混合润滑涡旋混合润滑分析

IF 2.2 3区工程技术 Q2 ENGINEERING, MECHANICAL

Journal of Tribology-transactions of The Asme Pub Date : 2023-06-02 DOI:10.1115/1.4062690

Chunjie Wei, Hui Song, Z. Hu, Wei Wang

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引用次数: 1

摘要

采用混合润滑模型和均匀润滑模型相结合的方法研究了CO2/油混合润滑涡旋的摩擦学性能。在使用润滑模型之前，建立了CO2/油混合物的物理特性。然后研究了涡旋啮合过程中润滑条件的演变，评估了径向间隙和制冷剂对涡旋啮合过程摩擦学行为的影响。摩擦副的润滑状况随着啮合点向轮轴中心移动而恶化。径向间隙和制冷剂质量分数对摩擦和润滑的影响受啮合位置的强烈影响。此外，制冷剂的存在导致流体动压降低，接触更加粗糙。

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Mixed lubrication analysis of scrolls lubricated with CO2/oil mixture based on a homogeneous model

The tribological performance of scrolls lubricated with CO2/oil mixture is investigated using a combination of the mixed lubrication model and homogeneous model. The physical characteristics of the CO2/oil mixture were established prior to using the lubrication model. Then the evolution of the lubrication condition during the meshing process of scrolls was investigated, and the impact of radial clearance and refrigerant on the tribological behavior was assessed. The lubrication condition of the tribo-pair deteriorates as the meshing point moves toward the center of the scrolls. The effects of radial clearance and refrigerant mass fraction on friction and lubrication are strongly influenced by the meshing position. In addition, the presence of refrigerant leads to less hydrodynamic pressure and more asperity contact.

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来源期刊

Journal of Tribology-transactions of The Asme 工程技术-工程：机械

CiteScore

4.20

自引率

12.00%

发文量

117

审稿时长

4.1 months

期刊介绍： The Journal of Tribology publishes over 100 outstanding technical articles of permanent interest to the tribology community annually and attracts articles by tribologists from around the world. The journal features a mix of experimental, numerical, and theoretical articles dealing with all aspects of the field. In addition to being of interest to engineers and other scientists doing research in the field, the Journal is also of great importance to engineers who design or use mechanical components such as bearings, gears, seals, magnetic recording heads and disks, or prosthetic joints, or who are involved with manufacturing processes. Scope: Friction and wear; Fluid film lubrication; Elastohydrodynamic lubrication; Surface properties and characterization; Contact mechanics; Magnetic recordings; Tribological systems; Seals; Bearing design and technology; Gears; Metalworking; Lubricants; Artificial joints