公开(公告)号：US11319055B2

公开(公告)日：2022-05-03

申请号：US16558071

申请日：2019-08-31

Applicant: Textron Innovations Inc.

Inventor： George Ryan Decker ,  Andrew G. Baines ,  Frank Douglas Sauer

IPC: B64C5/10 ,  B64C5/02 ,  B64C1/26 ,  B64C29/00

Abstract: A compliant tail structure for a rotorcraft having rotating components and a fuselage. The tail structure includes a tail assembly having first and second oppositely disposed tail members. A tail joint connects the tail assembly to an aft portion of the fuselage. The tail joint includes at least four tail mounts configured to establish a nodding axis for the tail assembly. At least two of the tail mounts are resilient tail mounts that are configured to establish a nodding degree of freedom for the tail assembly relative to the fuselage about the nodding axis, thereby detuning dynamic fuselage responses from excitation frequencies generated by the rotating components.

公开(公告)号：US11603183B2

公开(公告)日：2023-03-14

申请号：US17714967

申请日：2022-04-06

Applicant: Textron Innovations Inc.

Inventor： George Ryan Decker ,  Andrew G. Baines ,  Frank Douglas Sauer

IPC: B64C5/10 ,  B64C5/02 ,  B64C1/26 ,  B64C29/00

Abstract: A compliant tail structure for a rotorcraft having rotating components and a fuselage. The tail structure includes a tail assembly having first and second oppositely disposed tail members. A tail joint connects the tail assembly to an aft portion of the fuselage. The tail joint includes at least four tail mounts configured to establish a nodding axis for the tail assembly. At least two of the tail mounts are resilient tail mounts that are configured to establish a nodding degree of freedom for the tail assembly relative to the fuselage about the nodding axis, thereby detuning dynamic fuselage responses from excitation frequencies generated by the rotating components.

公开(公告)号：US20220227478A1

公开(公告)日：2022-07-21

申请号：US17714967

申请日：2022-04-06

Applicant: Textron Innovations Inc.

Inventor： George Ryan Decker ,  Andrew G. Baines ,  Frank Douglas Sauer

IPC: B64C5/10 ,  B64C5/02 ,  B64C1/26

Abstract: A compliant tail structure for a rotorcraft having rotating components and a fuselage. The tail structure includes a tail assembly having first and second oppositely disposed tail members. A tail joint connects the tail assembly to an aft portion of the fuselage. The tail joint includes at least four tail mounts configured to establish a nodding axis for the tail assembly. At least two of the tail mounts are resilient tail mounts that are configured to establish a nodding degree of freedom for the tail assembly relative to the fuselage about the nodding axis, thereby detuning dynamic fuselage responses from excitation frequencies generated by the rotating components.