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
A three-dimensional model of gas foil bearings and the effect of misalignment on the static performance of the first and second generation foil bearings
Sign Up to like & getrecommendations! Published in 2021 at "Tribology International"
DOI: 10.1016/j.triboint.2020.106821
Abstract: Abstract This paper presents a three-dimensional model of gas foil bearings with consideration of axial variation of the structural deflection. The top and bump foils are modeled with shell elements; hence, membrane, bending and shear… read more here.
Keywords: generation foil; foil; foil bearings; performance ... 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
Feasibility investigation of a compressor rotor supported by gas foil bearings with inhomogeneous bump foils
Sign Up to like & getrecommendations! Published in 2021 at "Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology"
DOI: 10.1177/13506501211004668
Abstract: In this paper, a rotordynamic experiment on a compressor rotor system is presented and the feasibility of gas foil bearings with inhomogeneous bump foils is verified. A push–pull device is designed to obtain the stiffness… read more here.
Keywords: foil bearings; rotor; foil; inhomogeneous bump ... 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
Research on Linear Actuators for Active Foil Bearings
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15165694
Abstract: Active foil bearings are a kind of gas foil bearing. They contain actuators which allow for modification of the bearing sleeve size and the shape of the lubrication gap. Rotor vibrations can be actively controlled… read more here.
Keywords: foil bearings; actuators active; active foil; linear actuators ... See more keywords