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Hybrid Surrogate-Based Rubber Engine Model for Aircraft Multidisciplinary Design Optimization

Häßy, Jannik and Schmeink, Jens and Becker, Richard-Gregor and Reitenbach, Stanislaus and Vieweg, Maximilian and Bekemeyer, Philipp and Merle, Andrei (2020) Hybrid Surrogate-Based Rubber Engine Model for Aircraft Multidisciplinary Design Optimization. In: AIAA-2020-3186. AIAA AVIATION Forum 2020, 15.-19. Jun. 2020, Virtuelles Event.

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The engine design should be selected optimally in terms of the overall aircraft system taking into account snowball effects, since the engine size, weight and fuel consumption have a large influence on both the structural aircraft sizing process and the aerodynamics. But the Multidisciplinary Design Optimization (MDO) of an aircraft is a challenging task due to the high degree of coupling of various components and disciplines. Therefore, a scalable rubber engine model can be applied within the MDO to enable the optimal selection of an engine design while reducing additional complexity to a minimum. In this publication a hybrid surrogate-based rubber engine concept is proposed, which consists of surrogate-models covering a range of engine designs and a tool for thermodynamic cycle analysis. Thereby, dimensions, weight and center of gravity of different engine designs as well as the individual operating behaviour over the entire flight mission are made available for the MDO process. A generic three-spool unmixed turbofan design similar to the Trent 1000 is created. Design variations are performed to generate a rubber engine model that covers different thrust requirements and a range of bypass ratios. For the model creation, different methods for design of experiment and interpolation with a varying number of samples are assessed and compared.

Item URL in elib:https://elib.dlr.de/135385/
Document Type:Conference or Workshop Item (Speech)
Title:Hybrid Surrogate-Based Rubber Engine Model for Aircraft Multidisciplinary Design Optimization
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Häßy, JannikJannik.Haessy (at) dlr.deUNSPECIFIED
Schmeink, JensJens.Schmeink (at) dlr.deUNSPECIFIED
Becker, Richard-GregorRichard-Gregor.Becker (at) dlr.deUNSPECIFIED
Reitenbach, StanislausStanislaus.Reitenbach (at) dlr.deUNSPECIFIED
Vieweg, MaximilianMaximilian.Vieweg (at) dlr.deUNSPECIFIED
Bekemeyer, PhilippPhilipp.Bekemeyer (at) dlr.deUNSPECIFIED
Merle, AndreiAndrei.Merle (at) dlr.deUNSPECIFIED
Date:June 2020
Journal or Publication Title:AIAA-2020-3186
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:rubber engine, engine model, MDO, MDAO, multidiscilinary design optimization, propulsion, turbofan, Trent 1000, collaborative design
Event Title:AIAA AVIATION Forum 2020
Event Location:Virtuelles Event
Event Type:international Conference
Event Dates:15.-19. Jun. 2020
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 - VicToria (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Engine
Institute for Aerodynamics and Flow Technology > CASE, BS
Deposited By: Häßy, Jannik
Deposited On:25 Jun 2020 13:22
Last Modified:25 Jun 2020 13:22

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