公开(公告)号：US11719301B2

公开(公告)日：2023-08-08

申请号：US16399458

申请日：2019-04-30

Applicant: BELL TEXTRON INC.

Inventor： Peter Quinn Romano ,  Michael S. Seifert ,  Jeffrey M. Bosworth

IPC: F16F7/10 ,  B64C17/00

CPC classification number: F16F7/1034 ,  B64C17/00 ,  F16F7/10 ,  F16F7/1017 ,  F16F2222/08 ,  F16F2228/066 ,  F16F2230/18 ,  F16F2236/08

Abstract: An aircraft comprises an aircraft component, a sensor, and a multiple frequency vibration absorber (absorber). The sensor is operable to detect a frequency of a vibration of the aircraft component. The absorber is coupled to the aircraft component and configured to absorb the vibration. The absorber comprises a beam element, a fluidic flexible matrix composite (FFMC) tube, a valve, and a controller. The beam element is attached to the aircraft component. The fluidic flexible matrix composite (FFMC) tube is coupled to the beam element and is operable to absorb the vibration based on a stiffness of the FFMC tube. The valve is fluidically coupled to the FFMC tube and is to control the stiffness of the FFMC tube based on regulating a flow of a liquid through the FFMC tube. The controller can actively control absorption of the vibration via the FFMC tube based on opening and/or closing the valve.