Influence mechanism of micro texture on load carrying capacity of journal bearing

被引：0

作者：

Yin, Minghu ^{[1
]}

Chen, Guoding ^{[1
]}

Gao, Dangcheng ^{[1
]}

Wang, Lin ^{[1
]}

机构：

[1] School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an

来源：

Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2015年 / 43卷 / 12期

关键词：

Computational fluid dynamics; Journal bearings; Load carrying capacity; Micro textures; Navier Stokes equations; Oil-film pressure;

D O I：

10.13245/j.hust.151206

中图分类号：

学科分类号：

摘要：

In order to reveal the influence and mechanism of surface textures on the load carrying capacity of journal bearing for texture optimization design, the three-dimensional models of journal bearing with textures were simulated with CFD method based on Navier Stokes equation, considering cavitation and turbulence effect. The influence of textures locations, shapes and geometries on the load carrying capacity of journal bearing were analysed, and the influence mechanism was studied based on the influence of textures on the oil-film pressure. The results show that, the textures can increase the film thickness and decrease the oil-film pressure, which may decrease the load carrying capacity of journal bearings. And the textures can also delay the rupture of the film and expand the load carrying region, which may increase the load carrying capacity. The double effect of textures on the load carrying capacity of journal bearings is the reason why the textures distributed in load carrying region can improve the load carrying capacity of journal bearings, and there is an optimal combination of axial distribution rate, density, width and depth of textures for the journal bearings to reach the largest load carrying capacity. © 2015, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.

引用

页码：27 / 31

页数：4

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