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

Abdelrasoul M. Gad, Shigehiko Kaneko

研究成果: Article

7 引用 (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.

元の言語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
発行部数6
DOI
出版物ステータスPublished - 2015 6 3
外部発表Yes

Fingerprint

foil bearings
Foil bearings
thrust bearings
static characteristics
Thrust bearings
dynamic characteristics
stiffness
Bearings (structural)
Gases
fluid flow
foils
Stiffness
gases
Metal foil
Reynolds equation
Flow of fluids
centrifugal force
flow equations
ramps
coefficient of friction

ASJC Scopus subject areas

  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

これを引用

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