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Parametrised fuselage modelling to evaluate aircraft crash behaviour in early design stages

Schwinn, Dominik (2015) Parametrised fuselage modelling to evaluate aircraft crash behaviour in early design stages. International Journal of Crashworthiness, 20 (5), pp. 413-430. Taylor & Francis. DOI: 10.1080/13588265.2015.1022435 ISSN 1358-8265

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Official URL: http://www.tandfonline.com/doi/pdf/10.1080/13588265.2015.1022435

Abstract

Trade studies during the preliminary design phase play an important role in the design process of a new aircraft. However, the generation and adaption of appropriate finite element (FE) models still takes a lot of time which in turn may prevent comprehensive trade studies and, therefore, lead to time- and cost-intensive redesign during the detailed design phase. Based on a standardised aircraft description, a fuselage modelling tool was developed to automatically generate global FE models for preliminary sizing purposes using beam elements for the fuselage stiffening structure. To be also used in crash simulations these models can be extended in a way that certain regions - where high plastic deformations or failure is expected - may be modelled much finer by the use of extruded profiles and shell elements. Nevertheless, this fine representation is still based on the same standardised aircraft description. In this paper the crash analysis tool AC-CRASH is presented introducing various modelling options and applications. They range from standard section drops with a pure vertical velocity up to full fuselage models under realistic crash and ditching conditions. As an exemplary application of AC-CRASH a vertical drop of a generic fuselage rear section is evaluated in detail.

Item URL in elib:https://elib.dlr.de/97722/
Document Type:Article
Title:Parametrised fuselage modelling to evaluate aircraft crash behaviour in early design stages
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schwinn, Dominikdominik.schwinn (at) dlr.deUNSPECIFIED
Date:26 March 2015
Journal or Publication Title:International Journal of Crashworthiness
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:20
DOI :10.1080/13588265.2015.1022435
Page Range:pp. 413-430
Publisher:Taylor & Francis
ISSN:1358-8265
Status:Published
Keywords:crash simulation; model generation; aircraft section; aircraft fuselage; parametrisation; automation
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 - Structures and Materials
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Schwinn, Dominik
Deposited On:19 Nov 2015 10:13
Last Modified:06 Sep 2019 15:18

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