Hydrodynamic lubrication takes a fundamental role in mechanical systems to reduce energy losses and prevent breakdown. The analytic instrument usually adopted describe hydrodynamic is the Reynolds equation, which its simplest statement for monophase lubricants with assuming no fluid slip at walls, linear equation pressure. However, this classical cannot reflect all lubricant characteristics eng...

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Abstract This contribution investigates the influence of outgassing processes on vibration behavior a hydrodynamic bearing supported turbocharger rotor. The examined rotor is radially by floating rings with outer squeeze-film damping and axially thrust bearings. Due to highly nonlinear properties, can be excited via lubricating film, which results in subsynchronous vibrations known as oil-whirl...

Abstract Fluid film bearings are well suited for high-speed industrial machineries like turbine generators and marine propulsion systems. Several numerical methods employed to theoretically investigate the flow phenomenon performance parameters of journal bearings, operating under various conditions. This paper reviews Computational Dynamics (CFD) Fluid–Structure Interaction (FSI) techniques th...