25th Congress of International Council of the Aeronautical Sciences, 3 - 8 September 2006, Hamburg, Germany
Paper ICAS 2006-9.6.3

HELICOPTER SUBFLOOR-INTEGRATED FUEL-TANK CRASHWORTHINESS

M. Anghileri, E. Francesconi, L.- M. L. Castelletti
Politecnico di Milano, Italy

Keywords: Fuel Tank, Crashworthiness, Nonlinear Explicit Finite Element Analysis

Helicopters subfloor is designed to absorb impact energy undergoing large deformations. In that, the presence of a subfloor-integrated fuel-tank is detrimental as, to be homologated, a fuel-tank is called to be little deformable. A concept of mechanical device meant to conceal these opposite exigencies is introduced and developed.

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