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117588

EFFECT OF MISALIGNMENT ON THE DURABILITY OF GAS-LUBRICATED FOIL THRUST BEARING

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Mechanical, Power, Production, Design and Mechatronics Engineering.

Abstract

The present study aims to evaluate the effects of static and dynamic angular misalignments of the runner surface on the performance of a gas-lubricated foil thrust bearing. The responses of the bearing load capacity, viscous power loss, and the stiffness and damping coefficients of the gas film to small angular misalignments are thoroughly analyzed. The compressible Reynolds equation along with the Couette Approximation technique is used to model the flow in the gas film. The deformation of the compliant bearing is calculated with a robust analytical model, and small perturbations method is used to calculate the dynamic coefficients of the gas film. The results show that misaligned foil thrust bearings are capable of developing a restoring moment sufficient enough to withstand the imposed mechanical distortions. Furthermore, the enhanced hydrodynamic effect ensures a stable operation of the misaligned foil thrust bearing at very thin gas films.

DOI

10.21608/jesaun.2016.117588

Keywords

Angular misalignment, foil thrust bearing, thermal elastohydrodynamic lubrication, static and dynamic characteristics

Authors

First Name

Abdelrasoul M.

Last Name

Gad

MiddleName

-

Affiliation

Department of Mechanical Engineering, Faculty of Engineering, Assiut University, Egypt.

Email

ammgad76@aun.edu.eg

City

-

Orcid

-

Volume

44

Article Issue

No 1

Related Issue

16630

Issue Date

2016-01-01

Receive Date

2015-11-17

Publish Date

2016-01-01

Page Start

73

Page End

90

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 44_Issue No 1_Pages 73-90.pdf

PDF . 1.9MB

Link

https://jesaun.journals.ekb.eg/article_117588.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=117588

Order

5

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

EFFECT OF MISALIGNMENT ON THE DURABILITY OF GAS-LUBRICATED FOIL THRUST BEARING

Details

Type

Article

Created At

23 Jan 2023