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MULTI-FIDELITY WING MASS ESTIMATIONS BASED ON A CENTRAL MODEL APPROACH

Böhnke, Daniel and Dorbath, Felix and Nagel, Björn and Gollnick, Volker (2012) MULTI-FIDELITY WING MASS ESTIMATIONS BASED ON A CENTRAL MODEL APPROACH. 71th Annual Conference of Society of Allied Weight Engineers, Inc., 05.-10. Mai 2012, Manching, Deutschland.

Full text not available from this repository.

Abstract

Although computational power is constantly increasing and Moore’s Law is still not falsified, computational cost remains an essential barrier in aircraft design especially when a high number of design evaluations is necessary. This is especially true at the conceptual design stage of aircraft. While determining the characteristics of a new configuration the number of iterations and the low level of detail in the available data limit the analyses to simple empiric methods. Nevertheless, at a later point in the design it is necessary to determine parameters like the wing mass with higher-fidelity analysis modules. Especially when assessing configurations that lie outside of the well-known design space of conceptual design, empiric methods become unreliable. Examples to name include high aspect ratio and forward-swept wings. In this study a combination of an empiric method, a beam model and vortex lattice model for aerodynamic loads is introduced. While multi-fidelity approaches are already well known, this study focuses on the fact that all analysis modules derive their data from the same data model. Working on a central data model decreases the number of required interfaces and guarantees that all models relate to the same input data, i.e. a compliant geometry definition. This paper includes a design chain starting from the conceptual design tool VAMPzero as initiator for the more advanced models PESTwing and TRIMvl. Using the PESTwing tool a large design space will be explored. An equation for determination of the wing mass based on a physical model is then derived and compared to existing methods in conceptual design.

Item URL in elib:https://elib.dlr.de/77117/
Document Type:Conference or Workshop Item (Paper)
Title:MULTI-FIDELITY WING MASS ESTIMATIONS BASED ON A CENTRAL MODEL APPROACH
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Böhnke, DanielDaniel.Boehnke (at) dlr.deUNSPECIFIED
Dorbath, Felixfelix.dorbath (at) dlr.deUNSPECIFIED
Nagel, BjörnBjoern.Nagel (at) dlr.deUNSPECIFIED
Gollnick, Volkervolker.gollnick (at) dlr.deUNSPECIFIED
Date:May 2012
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Multifidelity CPACS Aircraft Design
Event Title:71th Annual Conference of Society of Allied Weight Engineers, Inc.
Event Location:Manching, Deutschland
Event Type:international Conference
Event Dates:05.-10. Mai 2012
Organizer:Society of Allied Weight Engineers, Inc.
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 - Concepts & Integration (old)
Location: Hamburg
Institutes and Institutions:Air Transport Operations > Integrated Aircraft Design
Deposited By: Böhnke, Daniel
Deposited On:05 Mar 2013 09:55
Last Modified:05 Mar 2013 10:32

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