Comparison of stability limits obtained by time integration and perturbation approach for Gas Foil Bearings
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2019.06.034
Abstract: Abstract To ensure a widespread industrial application of Gas Foil Bearing (GFB) technology a robust prediction method for the stable operating regime has to be available. To predict the onset speed of instability (OSI) of… read more here.
Keywords: gas foil; time; time integration; foil ... See more keywords
Multi-domain stability and modal analysis applied to Gas Foil Bearings: Three approaches
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115174
Abstract: Abstract The dynamic characteristics of rotors supported by Gas Foil Bearings (GFBs) are commonly assessed using linear force coefficients, which are usually derived from an analytical perturbation in combination with an implicit compliance model. This… read more here.
Keywords: foil; foil bearings; three approaches; perturbation ... See more keywords
Stability analysis of rigid rotors supported by gas foil bearings coupled with electromagnetic actuators
Sign Up to like & getrecommendations! Published in 2019 at "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science"
DOI: 10.1177/0954406219877903
Abstract: Rotors supported on gas foil bearings have low damping characteristics, which limits its application. A possible solution could be an integration of a gas foil bearing with an electromagnetic actuator. This paper discusses the effect… read more here.
Keywords: gas foil; foil bearings; electromagnetic actuators; gas ... See more keywords
Study on the performance of gas foil journal bearings with bump-type shim foil
Sign Up to like & getrecommendations! Published in 2020 at "Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology"
DOI: 10.1177/1350650120969003
Abstract: The upscaling of turbomachinery using gas foil journal bearings (GFJBs) is limited because of their limited load capacity and dynamic stability. The improvement potential of shim foil inserted under the bump foil of such bearings… read more here.
Keywords: shim foil; foil; performance; gas foil ... See more keywords
Influence of slip-flow phenomenon on thermohydrodynamic behaviour of gas foil thrust bearings
Sign Up to like & getrecommendations! Published in 2021 at "Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology"
DOI: 10.1177/13506501211002962
Abstract: Gas foil bearings are often used in high-speed turbomachinery such as turboexpanders and turbochargers due to their merits over simple gas-lubricated bearings. The merits of gas foil bearings include their ability to tailor dynamic parameters… read more here.
Keywords: foil thrust; slip; thrust bearings; gas foil ... See more keywords
A Numerical Analysis of the Nonlinear Dynamics of Shimmed Conical Gas Foil Bearings
Sign Up to like & getrecommendations! Published in 2023 at "Applied Sciences"
DOI: 10.3390/app13105859
Abstract: Conical gas foil bearings (CGFBs) have the potential to halve the number of necessary bearings in a conventional rotor system supported by gas foil bearings. Transient simulations of gas foil journal bearings and gas foil… read more here.
Keywords: conical gas; gas; foil bearings; nonlinear dynamics ... See more keywords
A Novel Measurement Approach to Experimentally Determine the Thermomechanical Properties of a Gas Foil Bearing Using a Specialized Sensing Foil Made of Inconel Alloy
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma16010145
Abstract: Modern approaches dedicated to controlling the operation of gas foil bearings require advanced measurement techniques to comprehensively investigate the bearings’ thermal and thermomechanical properties. Their successful long-term maintenance with constant operational characteristics may be feasible… read more here.
Keywords: specialized sensing; foil; gas foil; sensing foil ... See more keywords