公开(公告)号：US20210156415A1

公开(公告)日：2021-05-27

申请号：US16694638

申请日：2019-11-25

Applicant: Bell Textron Inc.

Inventor： Scott David Poster ,  Steven Kirk Spears

IPC: F16C3/02 ,  B29C70/86

Abstract: A composite shaft has a fiber orientation that is a combination of fibers perpendicular to each other and a longitudinal axis of the shaft; and a second composite layer disposed at an angle ranging between 25 to 45 degrees+/−3 degrees from the fibers in the first composite layer; a third composite layer disposed at an angle ranging between 7 to 13 degrees+/−3 degrees from the fibers in the second composite layer and each subsequent transition layer(s); a fourth composite layer disposed at an angle ranging between 25 to 45 degrees+/−3 degrees from the fibers in the third composite layer(s); and a fifth composite generally perpendicular +/−3 degrees to each other and the fibers in the fourth composite layer.