HUB-BASED ACTIVE VIBRATION CONTROL SYSTEMS, DEVICES, AND METHODS WITH OFFSET IMBALANCED ROTORS
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United States of America Patent
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Nov 10, 2016
app pub date -
Jan 15, 2015
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Jan 15, 2014
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Abstract
Systems, devices, and methods for a hub-based active vibration control (AVC) design includes at least one pair of co-rotating motorized imbalanced rotors that create a controllable rotating force vector that can be controlled to cancel hub loads on a rotating hub. This control is achievable using a configuration in which each rotor has an axis of rotation that is offset from the hub axis of rotation. In this way, in a loss of operation failure mode, the system is designed such that centrifugal forces will cause the masses to spin to an orientation of low static imbalance.
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