Stability of Gas-Lubricated, Externally Pressurized Porous Journal Bearings

Author:

Sun Dah-chen1

Affiliation:

1. Engineering Mechanics Department, Research Laboratories, General Motors Corporation, Warren, Mich.

Abstract

A linear theory of hybrid instability, due to a combination of both whirl and pneumatic hammer, in gas-lubricated porous journal bearings is presented. An approximate solution to the stability problem is obtained by the use of a Galerkin expansion. Results are presented in terms of the variation of stability parameters, such as the threshold mass, the whirl frequency ratio, etc., with the compressibility number and eccentricity ratio. In addition, the effects of permeability, supply pressure, and bearing length are investigated.

Publisher

ASME International

Cited by 15 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Development of aerostatic porous bearings manufactured using metal 3D printing technology;Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology;2021-12-30

2. Porous Bearings;Air Bearings;2021-01-13

3. Nonlinear transient analysis of rigid rotor mounted on externally pressurized double-layered porous gas journal bearings accounting velocity slip;Journal of the Brazilian Society of Mechanical Sciences and Engineering;2020-09-19

4. A Review of Grooved Dynamic Gas Bearings;Applied Mechanics Reviews;2019-10-30

5. A Numerical Analysis of Optimum Air Journal Bearings;J AERONAUT ASTRONAUT;2014

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