Patent ID: 8480364
Filing Date: 2013-07-09
Classification: B64C,F16F,G01M

Abstract:
1. A rotating assembly vibration control system for a rotating assembly having a periodic vibration while rotating at an operational rotation frequency, said rotating assembly vibration control system including a first imbalance mass concentration rotor and a second imbalance mass concentration rotor, wherein said first imbalance mass concentration rotor and said second imbalance mass concentration rotor are rotated at a whole number multiple vibration canceling rotation frequency greater than said rotating assembly operational rotation frequency while controlling the rotational position of said first imbalance mass concentration and said second imbalance mass concentration to produce a rotating net force vector to inhibit said periodic vibration, and said first imbalance mass concentration is opposingly oriented relative to said second imbalance mass concentration during a starting stopping rotation speed less than said whole number multiple vibration canceling rotation frequency.