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Evaluation of Flutter Analyses in the Context of New Concepts of Preliminary Aircraft Design

Rieke, J. and Heinze, W. and Horst, P. and Schwochow, Jan (2006) Evaluation of Flutter Analyses in the Context of New Concepts of Preliminary Aircraft Design. In: Jahrbuch der DGLR Jahrestagung 2006. DGLR Jahrestagung, Braunschweig.

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Abstract

The process chain of the aeroelasic flutter analysis for new aircraft configurations is presented in the context of the preliminary aircraft design and optimisation program PrADO of the IFL. Therefore a recalculated Fairchild Dornier 728JET is used as an example. The different software modules used in this process chain are described together with the models, which are needed for the computation: PrADO is used to calculate a fully converged aircraft design by an iterative process. As eigen frequencies and eigen modes of the aircraft structure are used by flutter analysis, a structural model for modal analyses with MSC.NASTRAN is generated by a PrADO sub module and transformed into the NASTRAN bulkdata format. With geometry information of PrADO database a ZAERO model is created to perform automated evaluation of flutter proneness. The results of the flutter analysis of the FD 728JET, performed at Fairchild Dornier, are compared to the results of the PrADO design. The differences between both are detailed. Further a modified PrADO 728JET with winglets is compared to the baseline design.

Item URL in elib:https://elib.dlr.de/48066/
Document Type:Conference or Workshop Item (Paper)
Title:Evaluation of Flutter Analyses in the Context of New Concepts of Preliminary Aircraft Design
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Rieke, J.Institut für Flugzeugbau und Leichtbau (IFL), TU BraunschweigUNSPECIFIED
Heinze, W.Institut für Flugzeugbau und Leichtbau (IFL), TU BraunschweigUNSPECIFIED
Horst, P.Institut für Flugzeugbau und Leichtbau (IFL), TU BraunschweigUNSPECIFIED
Schwochow, JanUNSPECIFIEDUNSPECIFIED
Date:2006
Journal or Publication Title:Jahrbuch der DGLR Jahrestagung 2006
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:aeroelastic flutter analysis, PrADO, aircraft design, MDO
Event Title:DGLR Jahrestagung
Event Location:Braunschweig
Event Type:national Conference
Organizer:DGLR
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:12 Jun 2007
Last Modified:27 Apr 2009 13:42

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