Performance characteristics of gas-lubricated bump-type foil thrust bearing

Abdelrasoul M. Gad*, Shigehiko Kaneko

*この研究の対応する著者

研究成果: Article査読

13 被引用数 (Scopus)

抄録

In the present study, the static and dynamic characteristics of Generation II bump-type foil thrust bearings are investigated. For the static characteristics, a 2D compressible Reynolds equation containing effects of centrifugal forces is derived to model the fluid flow in the thin gas film. The compliance of the bearing is calculated using analytical structural stiffness model. The fluid flow equation is coupled to the structural stiffness model and the coupled fluid-structure interaction problem is solved iteratively to obtain the steady-state characteristics of the bearing. For the dynamic characteristics, small perturbations method is used to obtain the linearized equations for the pressure components of dynamic force coefficients. The effects of rotation speed, ramp height, nominal film thickness, friction coefficients at bump foil interfaces, and bump foil stiffness on the static and dynamic characteristics of Generation II foil thrust bearings are thoroughly analyzed.

本文言語English
ページ(範囲)746-762
ページ数17
ジャーナルProceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
229
6
DOI
出版ステータスPublished - 2015 6月 3
外部発表はい

ASJC Scopus subject areas

  • 機械工学
  • 表面および界面
  • 表面、皮膜および薄膜

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