Analysis of stability and unbalance response of flexible rotor supported on hydrodynamic porous journal bearing

Abstract

Rotating machines are one of the most important and widely used machineries in modern engineering world Now a days modern rotating equipments have a number of complicated accessories attached with it and they are also made extremely flexible They are also required to run at higher speed much higher than their first critical speed Fluid film bearings supporting the rotating shafts play an important role in the dynamic behaviour of the rotors because of their stiffness and damping properties