Patent ID: 9701402
Date: 2017-07-11
CPC Classifications: B64C

Claim:
1. An active vibration control system (AVCS) providing improved vibration control at steady state and transient performance conditions for an aircraft having real-time aircraft information, the AVCS comprising: at least one sensor configured to detect at least one vibration associated with the aircraft and generate vibration information; a controller in electronic communication with the at least one sensor and adapted to receive the vibration information, the controller configured to receive the real-time aircraft information via a signaling interface, wherein the real-time aircraft information is selected from the group consisting of forward air speed, rotor speed, pitch, yaw, roll, altitude, relative altitude, aircraft weight, weight on wheels, aircraft center of gravity, glass cockpit mode and combinations thereof, and wherein the controller is configured to modify at least one control parameter based upon the receive real-time aircraft information, the at least one control parameter selected from the group consisting of an least means squared (LMS) adaptation rate, a sensor weighting matrix, a force weighting matrix, an adaptive algorithm updated parameter, a band-pass break frequency, an algorithm update low pass filter break frequency, an accelerometer de-modulation low pass filter, and combinations thereof, wherein the controller is adapted to simultaneously receive both the vibration information from the at least one sensor and the real-time aircraft information from an aircraft avionics system; and at least one actuator in electronic communication with the controller and configured to generate a vibration canceling force in response to an electronic force command from the controller, the electronic force command a result of the modifying of the at least one control parameter to reduce the at least one vibration at the steady state and transient performance conditions, thereby counteracting aircraft vibration.