Study on elastohydrodynamic lubrication performance of double-layer composite water-lubricated bearings

Double-layer composite water-lubricated bearing is a new type of which can integrate the good damping performance low elastic under-layer bush and tribological plastic layer bush. This paper analyzes its elastohydrodynamic lubrication by fluid–structure interaction (FSI) method, studies effects eccentricity ratio, rotational speed, modulus distribution thickness on performance. Results show that double-layer more like bearing. As speed ratio increase, maximum water film pressure, load carrying capacity deformation increase significantly. decreases, total increases significantly, but decreases slightly. The influences both bush, have little impact