Fourier NUBS method to express ship hull form |
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Authors: | Email author" target="_blank">Munehiko?HinatsuEmail author |
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Institution: | (1) Center for CFD Research (CCR), National Maritime Research Institute, 6-38-1 Shinkawa, Mitaka, Tokyo, 181-0004, Japan |
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Abstract: | This article presents a method of numerical expression to draw ship hull forms. Recent developments in research into ship hull optimization need a method to express ship hull form as precisely as possible with a small number of design parameters. This method is based on a combination of the Fourier–sine series expansion and nonuniform B-spline (NUBS) interpolation. The merit of the combination is that it removes the wiggles which are often found when generating a rectangular-type curve, such as the midship section of tanker ship, with a simple Fourier series expansion. Here, the procedure is explained, and then a tanker ship hull is generated. Through the discussion, we show the effectiveness of the method. |
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Keywords: | Fourier NUBS method Hull form expression Ship design |
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