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Towards cooperative high-fidelity aircraft MDO: comparison of Breguet and ODE evaluation of the cruise mission segment

Ilic, Caslav and Führer, Tanja and Banavara, Nagaraj and Abu-Zurayk, Mohammad and Einarsson, Gunnar and Kruse, Martin and Himisch, Jan and Seider, Doreen and Richard-Gregor, Becker (2014) Towards cooperative high-fidelity aircraft MDO: comparison of Breguet and ODE evaluation of the cruise mission segment. STAB Symposium 2014, 4-5 Nov 2014, München.

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Official URL: http://www.stab2014.tum.de/


This report presents an organizational approach towards assembling and maintaining high-fidelity multi-disciplinary optimization (MDO) processes, in the environment of multiple institutes of the German Aerospace Center (DLR). Elements of the approach include both the technical conventions and the specialized software support. The approach is demonstrated on an early MDO process, that minimizes the mission fuel burn of an aeroelastic transport aircraft configuration, by modifying the wing planform, twist, and structural element thicknesses. Two optimizations are performed, one where the fuel burn is approximately evaluated through Breguet range equation, and the other where the ordinary differential equation (ODE) for the step-climb cruise is formally integrated. This is done in order to determine if the Breguet equation is still sufficient in face of high-fidelity aeroelastic simulations. The two optimized designs ended up practically the same, thus confirming the applicability of the Breguet equation, at least for the limited number of design parameters that were open for modification.

Item URL in elib:https://elib.dlr.de/92790/
Document Type:Conference or Workshop Item (Speech)
Title:Towards cooperative high-fidelity aircraft MDO: comparison of Breguet and ODE evaluation of the cruise mission segment
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Ilic, Caslavcaslav.ilic (at) dlr.deUNSPECIFIED
Führer, Tanjatanja.fuehrer (at) dlr.deUNSPECIFIED
Banavara, Nagarajnagaraj.banavara (at) dlr.deUNSPECIFIED
Abu-Zurayk, Mohammadmohammed.abu-zurayk (at) dlr.deUNSPECIFIED
Einarsson, Gunnargunnar.einarsson (at) dlr.deUNSPECIFIED
Kruse, Martinmartin.kruse (at) dlr.deUNSPECIFIED
Himisch, Janjan.himisch (at) dlr.deUNSPECIFIED
Seider, Doreendoreen.seider (at) dlr.deUNSPECIFIED
Richard-Gregor, Beckerrichard.becker (at) dlr.deUNSPECIFIED
Date:November 2014
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 42-43
Series Name:STAB-Mitteilung
Keywords:aircraft, optimization, cooperative, mission, Breguet, high-fidelity, multi-disciplinary, MDO
Event Title:STAB Symposium 2014
Event Location:München
Event Type:national Conference
Event Dates:4-5 Nov 2014
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 - Flight Physics (old)
Location: Braunschweig , Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Institut of Simulation and Software Technology > Distributed Systems and Component Software
Institute of Propulsion Technology > Engine
Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Ilic, Caslav
Deposited On:28 Nov 2014 15:43
Last Modified:31 Jul 2019 19:49

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