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Load Alleviation for Large Aeroplanes by Active Mode Control of the Coplanar Motion of the Horizontal Tailplane

Kordt, M. and Ballauf, C. and Joos, H.-D. (2001) Load Alleviation for Large Aeroplanes by Active Mode Control of the Coplanar Motion of the Horizontal Tailplane. Proc. of IFASD International Forum on Aeroelasticity Structural Dynamics, 2001-06-05 - 2001-06-07, Madrid. ISBN 84-931375-6-1

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Abstract

A standard FE-analysis of large aeroplanes reveals one or several 2-4 Hz modes of the horizontal tailplane (HTP), termed coplanar modes. They describe a coplanar or a fore / aft motion of the HTP. Due to their low eigenfrequencies, these modes can be easily excited by lateral gust, in particular by continuous turbulence on the fin. As the aerodyamic damping of these modes is small, strong resonance phenomena occur, yielding high loads at the HTP root. Via a mode control system, consisting of a dynamic feedback of the x-acceleration at the HTP-tip to the rudder, active damping and thereby a loads reduction of more than 20 % is demonstrated. The system is termed HTP-contol(ler).

Item URL in elib:https://elib.dlr.de/12203/
Document Type:Conference or Workshop Item (Paper)
Additional Information:LIDO-Berichtsjahr=2004,
Title:Load Alleviation for Large Aeroplanes by Active Mode Control of the Coplanar Motion of the Horizontal Tailplane
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kordt, M.EADS Airbus GmbH, HamburgUNSPECIFIED
Ballauf, C.UNSPECIFIEDUNSPECIFIED
Joos, H.-D.UNSPECIFIEDUNSPECIFIED
Date:2001
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:III
Page Range:pp. 323-330
Editors:
EditorsEmail
Associación de Ingenieros Aeronáuticos des Espana, UNSPECIFIED
ISBN:84-931375-6-1
Status:Published
Keywords:active mode control, gust load alleviation
Event Title:Proc. of IFASD International Forum on Aeroelasticity Structural Dynamics
Event Location:Madrid
Event Type:international Conference
Event Dates:2001-06-05 - 2001-06-07
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics (until 2012)
Deposited By: DLR-Beauftragter, elib
Deposited On:16 Sep 2005
Last Modified:31 Jul 2019 19:15

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