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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This paper describes DLRs 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)|
|Title:||Simulation of the impact on water ofa subfloor component and a full-scale WG30 helicopter|
|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|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L - no assignement|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L ST - Starrflüglertechnologien|
|DLR - Research theme (Project):||UNSPECIFIED|
|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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