Optimization of the Internal Structure and Shape of a 470 Dinghy Centerboard

The purpose of this paper is to design an improved centerboard for the Olympic 470 sailing dinghy sailing upwind. The design is improved by introducing a composite design that makes the centerboard twist to windward when sailing upwind, thereby reducing the angle of attack of the hull. The results s...

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Main Authors: David Ekström, Max Forkman, Martin Fagerström, Adam Persson, Lars Larsson, Christian Finnsgård
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Proceedings
Subjects:
Online Access:https://www.mdpi.com/2504-3900/49/1/36
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author David Ekström
Max Forkman
Martin Fagerström
Adam Persson
Lars Larsson
Christian Finnsgård
author_facet David Ekström
Max Forkman
Martin Fagerström
Adam Persson
Lars Larsson
Christian Finnsgård
author_sort David Ekström
collection DOAJ
description The purpose of this paper is to design an improved centerboard for the Olympic 470 sailing dinghy sailing upwind. The design is improved by introducing a composite design that makes the centerboard twist to windward when sailing upwind, thereby reducing the angle of attack of the hull. The results show that a beneficial twist up to 1.5° is possible to achieve without compromising the centerboard strength. According to our estimates, by utilizing the improved design it is possible to obtain a gain of up to 9 s per race in a world cup race.
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spelling doaj.art-e147a2c9887749d1aaf256939d04fa5b2023-11-20T03:48:02ZengMDPI AGProceedings2504-39002020-06-014913610.3390/proceedings2020049036Optimization of the Internal Structure and Shape of a 470 Dinghy CenterboardDavid Ekström0Max Forkman1Martin Fagerström2Adam Persson3Lars Larsson4Christian Finnsgård5Department of Mechanics and Maritime Sciences, Chalmers University of Technology, SE-412 96 Gothenburg, SwedenDepartment of Mechanics and Maritime Sciences, Chalmers University of Technology, SE-412 96 Gothenburg, SwedenDepartment of Industrial and Materials Science, Chalmers University of Technology, SE-412 96 Gothenburg, SwedenDepartment of Mechanics and Maritime Sciences, Chalmers University of Technology, SE-412 96 Gothenburg, SwedenDepartment of Mechanics and Maritime Sciences, Chalmers University of Technology, SE-412 96 Gothenburg, SwedenResearch department, SSPA Sweden AB, SE-400 21 Gothenburg, SwedenThe purpose of this paper is to design an improved centerboard for the Olympic 470 sailing dinghy sailing upwind. The design is improved by introducing a composite design that makes the centerboard twist to windward when sailing upwind, thereby reducing the angle of attack of the hull. The results show that a beneficial twist up to 1.5° is possible to achieve without compromising the centerboard strength. According to our estimates, by utilizing the improved design it is possible to obtain a gain of up to 9 s per race in a world cup race.https://www.mdpi.com/2504-3900/49/1/36470sailinghydrodynamicsinduced resistancetwisted centerboardcomposite design
spellingShingle David Ekström
Max Forkman
Martin Fagerström
Adam Persson
Lars Larsson
Christian Finnsgård
Optimization of the Internal Structure and Shape of a 470 Dinghy Centerboard
Proceedings
470
sailing
hydrodynamics
induced resistance
twisted centerboard
composite design
title Optimization of the Internal Structure and Shape of a 470 Dinghy Centerboard
title_full Optimization of the Internal Structure and Shape of a 470 Dinghy Centerboard
title_fullStr Optimization of the Internal Structure and Shape of a 470 Dinghy Centerboard
title_full_unstemmed Optimization of the Internal Structure and Shape of a 470 Dinghy Centerboard
title_short Optimization of the Internal Structure and Shape of a 470 Dinghy Centerboard
title_sort optimization of the internal structure and shape of a 470 dinghy centerboard
topic 470
sailing
hydrodynamics
induced resistance
twisted centerboard
composite design
url https://www.mdpi.com/2504-3900/49/1/36
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