Influence of the Gas-film Inertia Forces on the Squeeze Damping of an Externally Pressurized, Gas-lubricated Thrust Collar Bearing with Multiple-holes Admission

概要

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Based on the approach to average out the inertial forces across the film thickness, modified Reynolds equations and their boundary conditions are introduced to evaluate the influence of the inertia forces of a gas film on the dynamic properties of an externally pressurized, gas lubricated, parallel thrust collar bearing with multiple holes admission. From comparison with the experiment it is concluded that the influence of the film inertia forces on the damping characteristics is considerable, and that the presented modified Reynolds equations and their boundary conditions yield good predictions of both the bearing stiffness and the damping coefficient in a wide range of designing conditions.
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