公开(公告)号：US20210001980A1

公开(公告)日：2021-01-07

申请号：US16504057

申请日：2019-07-05

Applicant: Bell Textron Inc.

Inventor： Matthew Carl VanBuskirk ,  Michael Scott Seifert

IPC: B64C29/00 ,  B64C7/00 ,  F16F7/108 ,  F16F7/10

Abstract: A vibratory motion reduction system for a pylon assembly includes an inner member having an opening extending therein that receives a first end of the pylon assembly, an outer member moveably attached to the inner member, a tuning mass attached to the inner member and the outer member such that a vibratory motion of the pylon assembly accelerates the tuning mass, a spring member that couples to a second end of the pylon assembly, and the spring member and the tuning mass reduce the vibratory motion of the pylon assembly.

公开(公告)号：US20210016903A1

公开(公告)日：2021-01-21

申请号：US16516088

申请日：2019-07-18

Applicant: Bell Textron Inc.

Inventor： Matthew Carl VanBuskirk

IPC: B64F5/60 ,  F16D3/84 ,  G01B21/24 ,  F16C1/04

Abstract: A driveshaft misalignment measurement system for a drivetrain of an aircraft includes a driveshaft having a first end forming a driveshaft spline and a drivetrain subsystem including a spline adapted to connect to the driveshaft spline to form a splined connection. Rotational energy is transferred between the drivetrain subsystem and the driveshaft via the splined connection. The driveshaft misalignment measurement system also includes accelerometers coupled to the drivetrain configured to detect acceleration data and a flight control computer configured to measure misalignment at the splined connection using the acceleration data.