Dynamic analysis of liquid-lubricated hydrostatic journal bearings

Thesis/Dissertation · Mon Jan 01 04:00:00 EST 1990

OSTI ID:5758105

Kocur, Jr, J A

A hybrid bearing reduces the dependency of its behavior on the lubricant viscosity, bearing clearance, bearing surface area by combining the hydrostatic and hydrodynamic effects. The combination permits the hybrid bearing to be incorporated into rotor designs, where the working fluids of the rotor may be used in place of externally supplied lubricants. An effective and practical method to predict the static and dynamic behavior of hybrid bearings is developed. The model includes the three major fluid effects in the bearing; the orifice restriction, inertia losses at the pocket edges, and hydrodynamic effects on the bearing land regions. Lubrication is modeled and calculated using a finite element solution of Reynolds equation with turbulence corrections.

• Research Organization: Virginia Univ., Charlottesville, VA (USA)
• OSTI ID: 5758105
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BEARINGS
COMPUTER CODES
FINITE ELEMENT METHOD
FLUID MECHANICS
FLUIDS
HYDRODYNAMICS
HYDROSTATICS
JOURNAL BEARINGS
LUBRICATION
MATHEMATICAL MODELS
MECHANICS
NUMERICAL SOLUTION
OPENINGS
ORIFICES
REYNOLDS NUMBER
ROTORS
TURBULENCE
VISCOSITY
WORKING FLUIDS