Parametric Shape and Manufacturing Optimization of Customized Kitesurf Hydrofoils

• Main Authors: Jakob Schmidt, Marc Fleischmann, Conrad Ehemann, Jörg Kaufmann, Holger Cebulla
• Format: Article
• Language: English
• Published: MDPI AG 2020-06-01
• Series: Proceedings
• Subjects: computational fluid dynamic analysis; structural finite element analysis; coupled simulation; hydrofoil; wing shape optimization; dry fiber placement
• Online Access: https://www.mdpi.com/2504-3900/49/1/126

To minimize the costs of the current manufacturing of kitesurf hydrofoil wings, a workflow using a finite elements model was developed. By coupling a computational fluid dynamic (CFD) analysis with a structural finite element analysis (FEA), an optimization based on a genetic algorithm is implemented. The design space of the optimization is defined by the manufacturing processes. This enables the algorithm to find wing shapes which are not only suitable for the rider’s weight and preferred take-off speed but can also be produced directly on a universal mold surface. To reduce the amount of cut-off material and sustain the mechanical stresses, the output of the optimization contains the required number and orientation of all fiber layers within the reinforcement structure. This research shows that a single mold can produce different wing shapes to satisfy the needs of a wide range of customers.