The squeeze-film damper, undergoing a whirl orbit as may be caused by rotor unbalance, resists eccentricity of the whirl orbit with a static stiffness which is proportional to the dynamic force carried by the squeeze-film. In addition, the fluid film force would develop nonsynchronous components. The short bearing analysis is applied to treat this problem. Implications regarding the unbalance dynamics of a rigid rotor in the presence of a static load are examined.
Issue Section:
Research Papers
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