Device and method for damping vibration of rotating shaft system

摘要

A device for damping runout vibration of a rotating shaft system at least including a rotating shaft and a rotating body rotatably supported by the shaft. A ring ( 24 ) is provided outside a bearing ( 23 ) fitted on a rotating shaft with a clearance between the ring and an outer ring of the bearing. A vibration damping mechanism includes, in order to suppress runout vibration of a rotating shaft system from the radially outside of the ring ( 24 ), a blade spring ( 25 ) compressed by a preload and a stopper ( 26 ) for setting an operation limit of the blade spring.