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)|
|Title:||FE-Analyses of Water Impact Tests on Helicopter Structures|
|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|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L RR - Rotorcraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L RR - Rotorcraft Research|
|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 22:35|
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