Abstract
In this paper, a new type of aerostatic journal bearing with a self-controlled restrictor employing a floating bush is proposed in order to obtain very high static stiffness. The proposed self-controlled restrictor makes use of the force balance of fluid film pressures acting on the floating bush to control the gas flow entering bearing clearance. The effects of various parameters influencing the static characteristics of the proposed bearing are discussed theoretically and experimentally. Then the optimum design method for obtaining very high static stiffness is also discussed. It is consequently demonstrated that the proposed bearing is very useful for achieving very high static stiffness.
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