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公开(公告)号：US10386858B2
公开(公告)日：2019-08-20
申请号：US15594393
申请日：2017-05-12
Applicant: Bell Helicopter Textron Inc.
Inventor： Christopher Mike Bothwell , Jillian Samantha Alfred , Sung Kyun Kim , Marko Vuga , Matthew Hendricks , Mark Wasikowski , Thomas Parham , Michael Reaugh Smith
Abstract: In accordance with an embodiment of the present invention, a method of operating a rotorcraft includes receiving a measured yaw rate from a yaw rate sensor or a measured lateral acceleration from a lateral acceleration sensor of the rotorcraft, 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 of the rotorcraft.
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公开(公告)号：US20180329430A1
公开(公告)日：2018-11-15
申请号：US15594393
申请日：2017-05-12
Applicant: Bell Helicopter Textron Inc.
Inventor： Christopher Mike Bothwell , Jillian Samantha Alfred , Sung Kyun Kim , Marko Vuga , Matthew Hendricks , Mark Wasikowski , Thomas Parham , Michael Reaugh Smith
CPC classification number: G05D1/0858 , B64C27/001 , B64C27/04 , B64C27/57 , B64C27/82 , G05D1/0825
Abstract: In accordance with an embodiment of the present invention, a method of operating a rotorcraft includes receiving a measured yaw rate from a yaw rate sensor or a measured lateral acceleration from a lateral acceleration sensor of the rotorcraft, 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 of the rotorcraft
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