This paper surveys two bearing approaches that may be considered for gas turbine applications. The first is the hybrid bearing which uses a fluid film in parallel or in series with the rolling-element bearing, and whose objective is to increase the L10 life of the rolling-element bearing in high-load and/or high-speed applications. In the parallel arrangement this objective is sought by load sharing between the fluid-film and rolling-element bearing components. In the series arrangement, the objective is sought by achieving a decrease in the effective speed of the rolling-element bearing. The series approach also provides radial, viscous, damping, and this paper derives the relationships necessary for such design. The second approach is the use of gas bearings as a solution to problems of high-temperature operation. The merits and potential problem areas of gas bearings in advanced gas turbine applications are discussed and some appropriate gas bearing types are described.This paper surveys two bearing approaches that may be considered for gas turbine applications. The first is the hybrid bearing which uses a fluid film in parallel or in series with the rolling-element bearing, and whose objective is to increase the L10 life of the rolling-element bearing in high-load and/or high-speed applications. In the parallel arrangement this objective is sought by load sharing between the fluid-film and rolling-element bearing components. In the series arrangement, the objective is sought by achieving a decrease in the effective speed of the rolling-element bearing. The series approach also provides radial, viscous, damping, and this paper derives the relationships necessary for such design. The second approach is the use of gas bearings as a solution to problems of high-temperature operation. The merits and potential problem areas of gas bearings in advanced gas turbine applications are discussed and some appropriate gas bearing types are described.
New Bearing Concepts for Gas Turbines
Sae Technical Papers
National Farm, Construction, Industrial Machinery, Powerplant Meeting ; 1972
1972-02-01
Aufsatz (Konferenz)
Englisch
Review of offshore floating wind turbines concepts
TIBKAT | 2012
|Lidar-assisted control concepts for wind turbines
TIBKAT | 2016
|Passive Shroud Cooling Concepts for HP Turbines: Experimental Investigations
Online Contents | 2008
|Technology Report - New Magnetic Bearing Design For Gas Turbines
Online Contents | 1993
Analysis and comparison of support structure concepts for tidal stream turbines
British Library Conference Proceedings | 2006
|