A Study on Characteristics of Externally Pressurized Gas Thrust Bearings with Surface-restriction Compensation : Continued Report ; Dynamic Bearing Characteristics

概要

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An externally pressurized gas-lubricated thrust bearing with surface-restriction compensation is analyzed theoretically for the hydrodynamic bearing characteristics such as the dynamic stiffness and the damping coefficient applying two kinds of gas flow models ; one considers an equivalent recessed thrust bearing neglecting the circumferential flow in the bearing clearance, and the other takes into account the effect of the circumferential flow by a simple evaluation of it. The theoretical results are discussed by comparing with the experimental ones. The design criterion of the bearing with the surface-restriction compensation is also discussed from the results of theoretical calculations.
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