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Structural sizing of rotorcraft composite airframe using the open-source based design environment PANDORA

Schwinn, Dominik and Petsch, Michael and Kohlgrüber, Dieter and Weiand, Peter and Atci, Kagan (2022) Structural sizing of rotorcraft composite airframe using the open-source based design environment PANDORA. Deutscher Luft- und Raumfahrtkongress, 27.-29. Sep. 2022, Dresden, Germany.

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Abstract

During the last years, the design environment PANDORA has been developed at DLR in order to assess airand rotorcraft airframes. As part of this design environment structural sizing routines have been implemented. The airframe models are numerically solved using commercial Finite Elements solvers and the results are passed to the sizing algorithm using in-house developed converters. This paper introduces the sizing routine that was implemented into PANDORA to assess orthotropic structures using a two-step approach: Gradientbased optimization is conducted using lamination parameters and subsequently an evolutionary algorithm is executed to get a discrete ply lay-up. The theory behind the implemented methods is described and the evaluation of the implemented strength and stability criteria is illustrated. Exemplary sizing runs of rotorcraft main frames are shown and isotropic and orthotropic main frames designs are compared.

Item URL in elib:https://elib.dlr.de/188643/
Document Type:Conference or Workshop Item (Speech)
Title:Structural sizing of rotorcraft composite airframe using the open-source based design environment PANDORA
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schwinn, Dominikdominik.schwinn (at) dlr.dehttps://orcid.org/0000-0003-2341-9632
Petsch, MichaelMichael.Petsch (at) dlr.dehttps://orcid.org/0000-0002-2743-375X
Kohlgrüber, Dieterdieter.kohlgrueber (at) dlr.dehttps://orcid.org/0000-0002-6626-0927
Weiand, Peterpeter.weiand (at) dlr.deUNSPECIFIED
Atci, KaganKagan.Atci (at) dlr.dehttps://orcid.org/0000-0002-4975-4458
Date:2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:PANDORA; airframe structures; rotorcraft design; structural sizing; optimization
Event Title:Deutscher Luft- und Raumfahrtkongress
Event Location:Dresden, Germany
Event Type:national Conference
Event Dates:27.-29. Sep. 2022
Organizer:DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Structural Materials and Design, L - Virtual Rotorcraft and Validation
Location: Braunschweig , Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Institute of Flight Systems > Rotorcraft
Deposited By: Schwinn, Dominik
Deposited On:06 Oct 2022 11:14
Last Modified:06 Oct 2022 11:14

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