公开(公告)号：EP3401751B1

公开(公告)日：2020-03-25

申请号：EP17178494.5

申请日：2017-06-28

Applicant: Bell Helicopter Textron Inc.

Inventor： BOTHWELL, Christopher Mike ,  ALFRED, Jillian Samantha ,  KIM, Sung Kyun ,  VUGA, Marko ,  HENDRICKS, Matthew ,  WASIKOWSKI, Mark ,  PARHAM, Thomas ,  SMITH, Michael Reaugh

IPC: G05D1/08 ,  B64C27/04 ,  B64C27/57 ,  B64C27/82

公开(公告)号：EP3401751A1

公开(公告)日：2018-11-14

申请号：EP17178494.5

申请日：2017-06-28

Applicant: Bell Helicopter Textron Inc.

Inventor： BOTHWELL, Christopher Mike ,  ALFRED, Jillian Samantha ,  KIM, Sung Kyun ,  VUGA, Marko ,  HENDRICKS, Matthew ,  WASIKOWSKI, Mark ,  PARHAM, Thomas ,  SMITH, Michael Reaugh

IPC: G05D1/08 ,  B64C13/50 ,  B64C27/04

Abstract: In accordance with an embodiment of the present invention, a method of operating a rotorcraft (101) includes receiving a measured yaw rate from a yaw rate sensor or a measured lateral acceleration from a lateral acceleration sensor of the rotorcraft (101), filtering the measured yaw rate or the measured lateral acceleration using a filter to form a filtered measured yaw rate or a filtered measured lateral acceleration , and regulating a yaw rate or a lateral acceleration of the rotorcraft based on the measured yaw rate or the measured lateral acceleration. The filter includes a bandpass characteristic or a notch characteristic, and the filtering is configured to reduce lateral vibrations caused by airflow in a tail section (123) of the rotorcraft (101).