Fluid flow and thermal features of gas foil thrust bearings at moderate operating temperatures

Abdelrasoul M. Gad*, Shigehiko Kaneko

*この研究の対応する著者

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

This study aims to analyze the flow characteristics and the thermal features of foil thrust bearing. The flow in the gas film is modeled with 2D compressible Reynolds equation including effects of centrifugal forces in the gas film. The Couette Approximation is adopted for the analysis of temperature distribution in the gas film, and the small perturbations method is used to calculate its dynamic force coefficients. The results show that the Couette Approximation can be used to calculate the temperature distribution in foil thrust bearing with reasonable accuracy and the analysis of the fluid flow reveals that most of the side-leakage occurs in the low-temperature converging region removing less than 5% of the heat generated in the gas film. Furthermore, with the proper control of cooling flow rate through the bump foils, more than 70% of the heat generated in the gas film can be removed.

本文言語English
ホスト出版物のタイトルProceedings of the 9th IFToMM International Conference on Rotor Dynamics
編集者Paolo Pennacchi
出版社Kluwer Academic Publishers
ページ1223-1233
ページ数11
ISBN(電子版)9783319065892
DOI
出版ステータスPublished - 2015
外部発表はい
イベント9th IFToMM International Conference on Rotor Dynamics, 2014 - Milan, Italy
継続期間: 2014 9 222014 9 25

出版物シリーズ

名前Mechanisms and Machine Science
21
ISSN(印刷版)2211-0984
ISSN(電子版)2211-0992

Conference

Conference9th IFToMM International Conference on Rotor Dynamics, 2014
国/地域Italy
CityMilan
Period14/9/2214/9/25

ASJC Scopus subject areas

  • 材料力学
  • 機械工学

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