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Analysis of the application of fuselage skin reinforcements with beam element representations in flexible full aircraft models for ditching simulations

Leon Munoz, Christian and Kohlgrüber, Dieter and Langrand, Bertrand (2021) Analysis of the application of fuselage skin reinforcements with beam element representations in flexible full aircraft models for ditching simulations. 11th EASN International Conference, 01.-03. Sept. 2021, Virtual.

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Abstract

The aim of this paper is the application of beam element representations for structural skin reinforcements in flexible full aircraft FE models used in ditching simulations. To verify this approach, it was initially analyzed on flexible reinforced bottom-aircraft panels under guided ditching conditions, considering also structural mesh size variations and partly corresponding fluid mesh densities. For this analysis two different numerical methods were used for comparisons, the coupled Finite Element-Smoothed Particle Hydrodynamics and the Arbitrary Lagrangian Eulerian methods. For the generation of the full aircraft model a multidisciplinary process chain approach and a standardized data format description are used. The beam element representations are considered for the modelling of skin reinforcement as well as other structures like cabin and cargo floor structures. By this approach, first time feasible full aircraft ditching simulations and the subsequent analysis of both global kinematics and the local fuselage structural response could be achieved

Item URL in elib:https://elib.dlr.de/146171/
Document Type:Conference or Workshop Item (Speech)
Title:Analysis of the application of fuselage skin reinforcements with beam element representations in flexible full aircraft models for ditching simulations
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Leon Munoz, ChristianChristian.LeonMunoz (at) dlr.dehttps://orcid.org/0000-0002-6557-6655
Kohlgrüber, DieterDieter.Kohlgrueber (at) dlr.dehttps://orcid.org/0000-0002-6626-0927
Langrand, BertrandONERA-DADSUNSPECIFIED
Date:3 September 2021
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Accepted
Keywords:Aircraft Ditching, FSI, SPH-FE, ALE-CEL, Modelling Techniques
Event Title:11th EASN International Conference
Event Location:Virtual
Event Type:international Conference
Event Dates:01.-03. Sept. 2021
Organizer:EASN
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
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Leon Munoz, Christian
Deposited On:25 Nov 2021 11:51
Last Modified:25 Nov 2021 11:53

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