According to the design requirements of load equalization and vibration reduction for stern bearing, a water-lubricated bearing with self-adaptation capacity is proposed. The mainly composed three parts: bush, elastic element, damping alloy. element used realize static dynamic sharing reduce edge effect make contact pressure evenly distributed in axial direction, thereby improving service life ...

Active magnetic bearings can be implemented with frequency band-reject filtering that decreases the bearing stiffness and damping at a small bandwidth around a chosen frequency. The control scheme has been used for reducing a rotor dynamic force, such as an imbalance force, transmitted to the bearing stator. This study reveals that the scheme creates additional system vibration modes at the sam...

The demand for silent bearing applications has started the research to asses the effect of a viscoelastic damping layer in the vicinity of the bearing, for example between the bearing outer ring and the housing. In order to predict the dynamic behaviour of rolling bearing applications a 3D nonlinear time dependent computational model is developed. Both the vibration generation and the vibration...

The paper expands the work by Kinnear and Weston[1] on squeeze film bearing design to the general case and compares the revised methodology with classical bearing design[2,3,4] and hybrid bearing design[5]. The analysis, which employs a partial differentiation of the Poisseuille and Hagen-Poiseuille bearing flow equations, enables a mathematical model for the bearing squeeze film to be develope...

Abstract Hydrodynamic journal bearings are used in many applications which involve high speeds and loads. However, they susceptible to oil whirl instability, may cause bearing failure. In this work, a flexible Jeffcott rotor supported by two identical is investigate the stability bifurcations of system. Since closed form for finite forces not exist, nonlinear stiffness damping coefficients repr...