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Simulation of the impact on water ofa subfloor component and a full-scale WG30 helicopter

Pentecôte, N. and Vigliotti, A. (2002) Simulation of the impact on water ofa subfloor component and a full-scale WG30 helicopter. AHS International 58th Annual Forum, Montréal, Kanada, 11-13 Juni 2002.

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Abstract

This paper describes DLR’s work concerning the simulations of a sub-floor component and of a full-scale WG 30 helicopter impacting on water with the explicit Finite-Element code PAM-CRASH. For the modelling of the water medium, a classical Lagrangian mesh and an elastic-plastic hydrodynamic model are used. The metallic components of the structures are modelled with an elastic-plastic material model, in which material failure is considered. The behavior of the composite parts are described by a multi-layered shell material including orthotropic input data. Regarding the structure/water interactions, they are modelled with a classical node to segment contact. For both structures, the results of the PAM-CRASH analyses are compared qualitatively and quantitatively to the measured data gained during the tests conducted at CIRA in order to validate the code used. The most representative comparisons are discussed in detail and show that the test data and simulation results correlate well.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2003,
Title:Simulation of the impact on water ofa subfloor component and a full-scale WG30 helicopter
Authors:
AuthorsInstitution or Email of Authors
Pentecôte, N.UNSPECIFIED
Vigliotti, A.CIRA, Italien
Date:2002
Status:Published
Keywords:helicopter, water impact, SPH, explicit finite element, FE, modelling
Event Title:AHS International 58th Annual Forum, Montréal, Kanada, 11-13 Juni 2002
Organizer:American Helicopter Society
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 22:32

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