The effect of journal misalignment on the operation of a turbulent flow hydrostatic bearing

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · ASME, Transactions, Journal of Tribology; (United States)

DOI:https://doi.org/10.1115/1.2921643· OSTI ID:5791072

San Andres, L ^[1]

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1. Texas A M Univ., College Station (United States)

An analysis for calculation of the dynamic force and moment response in turbulent flow, orifice compensated hydrostatic journal bearings is presented. The fully developed flow of a barotropic liquid is described by variable properties, bulk-flow equations and local turbulent friction factors based on bearing surface condition. Bearing load and moments and, dynamic force and moment coefficients are calculated for perturbations in journal center displacements and misaligned journal axis rotations. Numerical results for the effect of static misalignment angles in the plane of the eccentricity vector are presented for a water lubricated hydrostatic bearing. The predictions show that journal axis misalignment causes a reduction in load capacity due to loss in film thickness, increases the flow rate and produces significant restoring moments (couples). Force and moment coefficients due to dynamic journal axis rotations are also discussed. 37 refs.

• OSTI ID: 5791072
• Journal Information: ASME, Transactions, Journal of Tribology; (United States), Journal Name: ASME, Transactions, Journal of Tribology; (United States) Vol. 115:3; ISSN XZ219V
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
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42 ENGINEERING
420200 -- Engineering-- Facilities
Equipment
& Techniques
BEARINGS
FILM FLOW
FILMS
FLUID FLOW
FRICTION FACTOR
HYDROSTATICS
JOURNAL BEARINGS
NUMERICAL SOLUTION
THIN FILMS
TURBULENT FLOW