公开(公告)号：US20230266216A1

公开(公告)日：2023-08-24

申请号：US17678808

申请日：2022-02-23

Applicant: Bell Textron Inc.

Inventor： Louis CHARRON ,  Maxime LAPALME ,  Daniel DEL ROSSI ,  Alexis DUGRÉ

IPC: G01N3/20 ,  G01M5/00

CPC classification number: G01N3/20 ,  G01M5/0016 ,  G01N2203/0073

Abstract: An apparatus for introducing a test load to a rotor blade test specimen for fatigue testing includes a body extending along a longitudinal axis in a first direction from a first end to a second end, and the body having an internal cavity with an opening at the second end configured to dispose a tip portion of the rotor blade test specimen.

公开(公告)号：US20210380221A1

公开(公告)日：2021-12-09

申请号：US16893029

申请日：2020-06-04

Applicant: Bell Textron Inc.

Inventor： Guillaume BIRON ,  Marc OUELLET ,  Alexis DUGRÉ

IPC: B64C11/34 ,  B64C27/39

Abstract: An exemplary continuous variable pitch rotor system includes a blade extending radially from a hub along a longitudinal axis, the blade rotationally coupled to the hub to permit limited rotation of the blade about the longitudinal axis in response to a change in a rotational speed of the hub. In some embodiments, the blade is held in a radially fixed position relative to the hub. In some embodiments, the blade is permitted to translate radially.