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Integrated Optimization of Ailerons for Active Gust Load Alleviation

Pusch, Manuel and Knoblach, Andreas and Kier, Thiemo (2015) Integrated Optimization of Ailerons for Active Gust Load Alleviation. IFASD 2015, 28.6.-02.7.2015, St. Petersburg, Russland.

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An active gust load alleviation (GLA) system offers great potential for weight savings in aircraft design. Its effectiveness, however, strongly depends on the layout of available control surfaces, which is investigated in this paper. For the purpose of wing load reduction, the parameters of a static gain feedback controller are optimized simultaneously with aileron geometry parameters. Therefor, an efficient update routine for the nonlinear model of a largescale flexible aircraft, including unsteady aerodynamics, is presented. Compared to a GLA system using the original aileron configuration, 9% performance improvement is achieved. An additional study is carried out to quantify the necessary trade-off between individual load channels. Concluding, the significant influence of aileron size and position on overall GLA performance is clearly demonstrated and hence a consideration in preliminary aircraft design is strongly recommended.

Item URL in elib:https://elib.dlr.de/97235/
Document Type:Conference or Workshop Item (Speech)
Title:Integrated Optimization of Ailerons for Active Gust Load Alleviation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Pusch, ManuelManuel.Pusch (at) DLR.deUNSPECIFIED
Knoblach, AndreasAndreas.Knoblach (at) DLR.deUNSPECIFIED
Kier, ThiemoThiemo.Kier (at) DLR.deUNSPECIFIED
Date:June 2015
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Multidisciplinary Design Optimization, Aileron Design, Gust Load Alleviation, Flexible Aircraft
Event Title:IFASD 2015
Event Location:St. Petersburg, Russland
Event Type:international Conference
Event Dates:28.6.-02.7.2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
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 System Dynamics and Control
Deposited By: Pusch, Manuel
Deposited On:13 Jul 2015 17:07
Last Modified:31 Jul 2019 19:54

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