A Review on Modeling and Stability Aspects of Gas Foil Bearing Supported Rotors

Gas foil bearing rotor (GFBR) systems have received significant interest in the field of rotordynamics and vibration analysis. GFBR a wide range high-speed turbomachinery applications. Due to high speed, these machines are susceptible rigorous instability. bearings instigate large amplitude vibrations at startup shut down severe subsynchronous motions during operations. Over years, numerous work has been done rotors supported on gas bearings. Significant improvement observed stability feasibility systems. However, accurate model predictions still remain challenge for its widespread usage turbomachinery. A comprehensive review needs be study previous pave way future research. The current is majorly divided into three sections. Firstly, various models used performance prediction compiled. After that, major causes instability that manifest experiments practice with illustrated. Lastly, developmental attempts made inhibit summarised. This paper presents an overall picture engineering scenario prospects