Archivio Istituzionale della RicercaThe current airworthiness regulation CS 23.527 describes the ditching of a seaplane. The regulation defines the pressure distribution along the structure profiles in line with the theoretical study carried out by T. Von Karman [1] and Wagner [2]. Therefore, the current rules describe the phenomenon without investigating the dynamic aspects of this phenomenon and the particular effects on the pressure/time relationship. This research aims to investigate the behavior of the fluid-structure interaction during the specific impact phase. The objective is to study a methodology that can describe this phenomenon and thus allow the correct sizing of the seaplane hull during the impact on water. A step-by-step methodology based on numerical calculations using LS-DYNA and experimental ditching tests is proposed.
Design Of A Vertical Ditching Test / Nicolosi, G.; Valpiani, F.; Grilli, G.; SAPONARO PIACENTE, A.; DI IANNI, L.; Cestino, E.; Sapienza, V.; Polla, A.; Piana, P.. - (2021). (Intervento presentato al convegno 32nd ICAS Congress tenutosi a Shanghai (China) nel 6-10 September 2021).
Design Of A Vertical Ditching Test
DI IANNI, L.;CESTINO, E.;POLLA, A.;
2021
Abstract
The current airworthiness regulation CS 23.527 describes the ditching of a seaplane. The regulation defines the pressure distribution along the structure profiles in line with the theoretical study carried out by T. Von Karman [1] and Wagner [2]. Therefore, the current rules describe the phenomenon without investigating the dynamic aspects of this phenomenon and the particular effects on the pressure/time relationship. This research aims to investigate the behavior of the fluid-structure interaction during the specific impact phase. The objective is to study a methodology that can describe this phenomenon and thus allow the correct sizing of the seaplane hull during the impact on water. A step-by-step methodology based on numerical calculations using LS-DYNA and experimental ditching tests is proposed.
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https://hdl.handle.net/11583/2927178