HELICOPTER VIBRATION CONTROL SYSTEM AND CIRCULAR FORCE GENERATION SYSTEM FOR CANCELING VIBRATIONS

• Main Authors: SWANSON DOUGLAS A, JOLLY MARK R, IVERS DOUGLAS E, MELLINGER DANIEL, BADRE ALAM ASKARI, ALTIERI RUSSELL E, MEYERS ANDREW D
• Format: Patent
• Language: English; Korean
• Published: 24.12.2010
• Subjects: AEROPLANES; AIRCRAFT; AVIATION; CALCULATING; COMPUTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COSMONAUTICS; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; HELICOPTERS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PERFORMING OPERATIONS; PHYSICS; REGULATING; TRANSPORTING

A vehicle a nonrotating vehicle body, a rotating machine member, and including a vehicle vibration control system, the vehicle vibration control system including a vehicle vibration control system controller, a vehicle rotating machine member sensor for inputting vehicle rotating machine member data correlating to the relative rotation of the vehicle rotating machine member rotating relative to the nonrotating vehicle body into the vehicle vibration control system controller, at least a first nonrotating vehicle body vibration sensor, the at least first nonrotating vehicle body vibration sensor inputting at least first nonrotating vehicle body vibration sensor data correlating to vehicle vibrations into the vehicle vibration control system controller, at least a first nonrotating vehicle body circular force generator, the at least a first nonrotating vehicle body circular force generator fixedly coupled with the nonrotating vehicle body, the at least first nonrotating vehicle body circular force generator controlled to produce a rotating force with a controllable rotating force magnitude and a controllable rotating force phase, the controllable rotating force magnitude controlled from a minimal force magnitude up to a maximum force magnitude, and with the controllable rotating force phase controlled in reference to the vehicle rotating machine member sensor data correlating to the relative rotation of the vehicle rotating machine member rotating relative to the nonrotating vehicle body wherein the vehicle vibration sensed by the at least first nonrotating vehicle body vibration sensor is reduced.