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Multidisciplinary Optimization of Supersonic Aircraft Including Low-Boom Considerations

Brezillon, Joel and Carrier, Gerald and Laban, Martin (2011) Multidisciplinary Optimization of Supersonic Aircraft Including Low-Boom Considerations. Journal of Mechanical Design, 133 (10), pp. 1-9. American Society of Mechanical Engineers (ASME). doi: 10.1115/1.4004972. ISSN 1050-0472.

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Official URL: http://mechanicaldesign.asmedigitalcollection.asme.org/


This paper presents a multidisciplinary optimization framework developed by the authors and applied to small-size supersonic aircraft. The multidisciplinary analysis suite is based on the combination of low (empirical) and high-fidelity computational fluid dynamics (CFD) and computational structure mechanics (CSM) tools for predicting the overall aircraft performance and the sonic boom overpressure at supersonic flight, which represents the most challenging environmental constraint for supersonic aircraft. The analysis suite is coupled with a multi-objective optimization strategy for quantifying the trade-off between the maximum take-off weight, mission range, and the sonic boom overpressure. The optimization framework is applied to a small-size supersonic business-jet cruising at Mach number M=1.8 and featuring a double delta wing. The trade-offs between disciplines are well captured and an optimized configuration achieving the target mission range with a lower maximum take-off weight, and a moderate sonic boom signature is obtained through changes in wing dihedral and sweep. A more drastic reduction of the sonic boom signature is also obtained but at the cost of a significant reduction of the aircraft performance.

Item URL in elib:https://elib.dlr.de/72430/
Document Type:Article
Additional Information:Paper: 105001
Title:Multidisciplinary Optimization of Supersonic Aircraft Including Low-Boom Considerations
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Brezillon, JoelJoel.Brezillon (at) dlr.deUNSPECIFIED
Carrier, GeraldGerald.Carrier (at) onera.frUNSPECIFIED
Laban, MartinLaban (at) nlr.nlUNSPECIFIED
Date:25 October 2011
Journal or Publication Title:Journal of Mechanical Design
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1115/1.4004972
Page Range:pp. 1-9
Publisher:American Society of Mechanical Engineers (ASME)
Keywords:supersonic, CFD, CSM, sonic boom, MDO, multiobjective optimization
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 - Flight Physics (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Brezillon, Joel
Deposited On:08 Dec 2011 14:14
Last Modified:06 Sep 2019 15:23

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