OPTIMIZATION AND 3D PRINTING OF A FLIGHT CONTROL SYSTEM FOR MOTH HYDROFOILING BOAT

Matteo PERINI, Sasan AMIRABDOLLAHIAN, Ciro MALACARNE, Mattia CABRIOLI, Matteo VANAZZI

Abstract


The International Moth Class is a high-performance foiling dinghy. The Moth needs a system to control the angle of attack of the daggerboard flap and maintain ride height to ensure stability throughout the entire speed range. In this work, we initially employed the Design for Additive Manufacturing (DfAM) methodology as the primary approach to minimize material consumption while preserving stiffness and consolidating different components to reduce compliance in the bowsprit assembly. A weight reduction of 32% was realized along with a 44% reduction in front cross-section area to improve the aerodynamics of the component. Furthermore, the components were fabricated through laser powder bed fusion (L-PBF), using recycled titanium grade 5 powder to improve the sustainability of the design.


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References


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