ACTIVE VIBRATION CONTROL SYSTEM AND METHOD FOR REDUCING SOUND AND/OR VIBRATION IN A PASSENGER CABIN OF AN AIRCRAFT

摘要

An active vibration control system (110) includes a plurality of actuators (150-155) corresponding to and disposed adjacent each engine (102) of an aircraft (100), at least one sensor (650) located within a passenger cabin (100C) of the aircraft (100) and configured to detect a magnitude and frequency of one or more of vibration and sound produced by a respective engine (102) and generate one or more of a vibration and sound feedback signal, and a controller (500) connected to each of the plurality of actuators (150-155) and each of the at least one sensor (650), the controller (500) being configured to effect control of no more than two of the plurality of actuators (150-155) for a respective engine (102) based the feedback signal where the no more than two actuators (150-155) effect suppression of one or more of vibration and sound of a respective engine due to rotating axis of the respective engine (102).