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FE-Analyses of Water Impact Tests on Helicopter Structures

Kohlgrüber, D. and Pentecote, N. and Vigliotti, A. and Bartosch, H. and Weisberg, V. (2003) FE-Analyses of Water Impact Tests on Helicopter Structures. 4th International KRASH Users’ Seminar, Amsterdam, The Netherlands, June 2 – 4, 2003.

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The paper describes two different water impact simulations performed on helicopter structures and their correlation with measured data. In a first part a detailed FE-analysis of the crash test of a full scale WG30 helicopter will be presented. This simulation of the helicopter that represents a typical aluminium subfloor design shows the potential of numerical methods to investigate the global and local behaviour of helicopter structures in case of water impact. In a second part of the paper a new design idea to avoid skin breakage in a generic sub-floor structure of a composite helicopter is presented. The results of pre-test simulations have been used to modify the design prior to the manufacturing of two test articles. Finally, the results of the simulations are compared to the destructions observed in a first water impact test.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2003,
Title:FE-Analyses of Water Impact Tests on Helicopter Structures
AuthorsInstitution or Email of Authors
Vigliotti, A.CIRA
Bartosch, H.Eurocopter Deutschland
Weisberg, V.Israel Aircraft Industries
Keywords:helicopter, crash, water impact, ditching, finite element, FE, simulation, sub-floor design
Event Title:4th International KRASH Users’ Seminar, Amsterdam, The Netherlands, June 2 – 4, 2003
Organizer:NLR / Dynamic Response Incorporated
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
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 22:35

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