US 11,745,861 B2
Active vibration control system in a gunfire vibration environment
Douglas Swanson, Cary, NC (US); and Paul Joseph Bachmeyer, Charlotte, NC (US)
Assigned to LORD Corporation, Cary, NC (US)
Appl. No. 17/432,041
Filed by LORD Corporation, Cary, NC (US)
PCT Filed Feb. 25, 2020, PCT No. PCT/US2020/019710
§ 371(c)(1), (2) Date Aug. 18, 2021,
PCT Pub. No. WO2020/176515, PCT Pub. Date Sep. 3, 2020.
Claims priority of provisional application 62/939,728, filed on Nov. 25, 2019.
Claims priority of provisional application 62/809,918, filed on Feb. 25, 2019.
Prior Publication US 2022/0185463 A1, Jun. 16, 2022
Int. Cl. B64C 27/00 (2006.01)
CPC B64C 27/001 (2013.01) [B64C 2027/004 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An active vibration control system (AVCS) for an aircraft having an aircraft structure and at least one gun positioned on the aircraft, the AVCS comprising:
at least one control sensor positioned on the aircraft;
at least one force generator positioned on the aircraft; and
at least one controller in electronic communication with the at least one control sensor and the at least one force generator, the at least one controller configured for:
determining, using the at least one control sensor, a first plurality of force generating commands for controlling vibrations acting on the aircraft structure;
sending the first plurality of force generating commands to the at least one force generator, causing the at least one force generator to produce a vibration canceling force;
determining that the gun is firing; and
in response to determining that the gun is firing, determining a second plurality of force generating commands and sending the second plurality of force generating commands to the at least one force generator.