Abstract
In this paper, a topological optimization procedure has been applied on a real component of the deck of a sailing multi-hull in order to find the internal shape that best save the material used in the manufacturing process without a relevant loss of structural rigidity. The multi-hull boat is a 16 feet length catamaran equipped with an asymmetric foil on both centerboards and with a symmetric foil on both rudders. The task of the analyzed object is to act as a cylindrical support for the screw that drives the rotation of the centerboard. The process adopted to manufacture this object is the Fused Deposition Modeling (FDM) technique, because of its high versatility and its relative low-cost impact. The aim of this work is to verify the applicability of FDM to structural naval component subjected to demanding loads during navigation and, at the same time, to investigate on the robustness of a topology optimization strategy in creating new shapes that recent additive manufacturing are able to create.
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Acknowledgments
This activity is the result of a research program named “The use of rapid prototyping techniques in yachting” where the University of Palermo and the University of Enna Kore are involved in. The authors also wish to thank ANSYS Inc. and HBM Italia for their support in supplying software and hardware equipments. Finally, a special thank goes to the Zyz Sailing Team of Palermo that makes available the boat LED and its crew for the test at sea.
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Mancuso, A., Pitarresi, G., Saporito, A., Tumino, D. (2019). Topological Optimization of a Structural Naval Component Manufactured in FDM. In: Cavas-Martínez, F., Eynard, B., Fernández Cañavate, F., Fernández-Pacheco, D., Morer , P., Nigrelli, V. (eds) Advances on Mechanics, Design Engineering and Manufacturing II. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-12346-8_44
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