Patent ID: 11858621
Assignee: LOCKHEED MARTIN CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 9:
10. The rotary blade aircraft of claim 1, further comprising:
a sensor on the airframe configured to measure vibrations of the airframe during flight; and
a control processor coupled to the harmonic control actuator, the control processor configured to
receive a signal from the sensor representing measured vibrations of the airframe during flight,
determine a desired movement of at least one of the plurality of rotor blades about the respective longitudinal axis based on the signal from the sensor, and
control an electric motor of the harmonic control actuator to move the swashplate assembly relative to the rotor axis to provide the desired movement of the at least one of the plurality of rotor blades to reduce the measured vibrations of the airframe.