Static and Dynamic Performance Analysis of a Novel Mesoscale Gas Foil Bearings Consider the Effect of Slip Flow

被引：0
|
作者：
Feng K. [1 ]
Wang Q. [1 ]
Li W. [1 ]
Zhao X. [1 ]
Zhang Z. [2 ,3 ]
机构：
[1] State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha
[2] School of Automotive Studies, Tongji University, Shanghai
[3] The Clean Energy Automotive Engineering Center, Tongji University, Shanghai
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2017年 / 53卷 / 17期
关键词：
FDM; Microscale gas foil bearings; Slip flow; Static and dynamic performance;
D O I：
10.3901/JME.2017.17.103
中图分类号：
学科分类号：
摘要：
A stiffness model of the elastic foundation was carried out and a test rig was built to test the stiffness of the elastic layer. The test results confirmed the predictions. Static and dynamic performance of the bearing was predicted by coupling the stiffness model of the elastic foundation and the Reynolds equation which considering first order slip flow. Predictions show that the effects of slip flow become significant as the load increase. Dynamic stiffness coefficients increase as speed increase, whereas dynamic damping coefficients show opposite trend. The dynamic stiffness coefficients decrease when considering the effects of slip flow, while the dynamic damping coefficients increase. Moreover, the thickness and number of the elastic foundation influence the static and dynamic performance significantly. © 2017 Journal of Mechanical Engineering.
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页码：103 / 112
页数：9
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