ABSTRACT
The main objective of this study is to model a cylindrical roller bearing under elastohydrodynamic lubrication (EHL) with localized surface defects. The dynamic model of the cylindrical roller bearing is applied to a rotor system modeled by the finite element method. The load-displacement relationship of the lubricated contact force model is based on an equivalent EHL stiffness and damping obtained by numerical simulation. Comparison results are presented of the frequency spectra in simulation with healthy and faulty bearings under EHL and Hertzian classical dry contact.
