Parametric design of sailing hull shapes

Mancuso, Antonio

doi:10.1016/j.oceaneng.2005.03.007

Cited by 28 publications

(13 citation statements)

References 9 publications

(9 reference statements)

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“…The technique in [1] cannot generate any of the displacement and semi-displacement yacht hulls and the technique in [2] cannot produce flat bottom planing yacht hull and displacement yacht hulls. However, there are other techniques in the literature [3,4] which can generate displacement yacht hulls, but not any type of planing yacht hulls. Table 1 provides the comparison between the capability of existing techniques and the proposed method.…”

Section: Introductionmentioning

confidence: 99%

A novel design framework for generation and parametric modification of yacht hull surfaces

2017

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This paper proposes a new design framework for the parametric design and shape modification of a yacht hull. In this framework, the hull is divided into three regions (entrance, middle and run) and each region is represented separately. In this way, a designer has better design flexibility so that higher design variations of the hull can be achieved. Each region consists of keel line(s), deck line, chine line(s) and station lines that are represented using Bezier curves and these lines are called feature curves. A 3D surface model of a yacht hull is obtained by generating Coons patches using feature curves. Shape operators are also introduced and implemented for the modification of the given hull shape while considering some quality criteria such as hull fairness. Experiments in this study show that a variety of hull shapes can be generated using the proposed design framework with the application of the shape operators.

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Section: Introductionmentioning

confidence: 99%

A novel design framework for generation and parametric modification of yacht hull surfaces

2017

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“…Under the operational environment of FRIENDSHIP-Framework, substantial changes to the hull form may be yielded from these control points (Lee, Kim, & Kang, 1995;Tahara, Wilson, Carrica, & Stern, 2006) and optimized geometric modeling is achieved as a result (Birk & Harries, 2003;Saha et al, 2004;Saha, Suzuki, & Kai, 2005). This method has been widely used (Campana, Peri, Tahara, & Stern, 2006;Chen & Huang, 2004;Harries & Abt, 1998;Harries, Abt, & Hochkirch, 2004;Kang & Lee, 2010;Mancuso, 2006;Sarioz, 2006;Pérez & Clemente, 2011;Ping, Xiang, & Hao, 2008). In this paper, the F-Spline curve has been chosen as the parametric representation for the transformation of the ship bulbous bow.…”

Section: Introductionmentioning

confidence: 99%

A hydrodynamic optimization design methodology for a ship bulbous bow under multiple operating conditions

Chang

2016

Engineering Applications of Computational Fluid Mechanics

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The main objective of this article is to describe an innovative methodology for the hydrodynamic optimization of a ship bulbous bow which considers multiple operating conditions. The proposed method is more practical and effective than the traditional optimization process, which is only based on contractually specified design condition. Parametric form approaches are adopted by employing an F-spline curve in order to generate variants of the hull bulbous bow forms using form design parameters modified, resulting in an optimization system based on improved genetic algorithms. The Rankine source panel method is used for the hydrodynamic evaluation, wherein non-linear free surface conditions and the trim and sinkage of the ship are taken into consideration. The validity and effectiveness of the proposed methodology for a large container ship is investigated by comparing the computational results with experimental data, which demonstrates that the proposed methodology can engage well in the automation process and improve hydrodynamic performance during actual ship design practices. ARTICLE HISTORY

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“…There are several methods of parametric design that have been used in ship modeling. The use of the control points of the cubic B spline to generate the parametric of ship hull design as well as the parametric of bulbous bow design has been introduced with successful results [1][2][3][4][5]. Campana et al [6] has used the Bezier polynomial patches method, in which the shape modification was controlled by a given number of control points that were used as design variables/input parameters for finding an optimum shape in the optimization process.…”

Section: Introductionmentioning

confidence: 99%

Parametric bulbous bow design using the cubic Bezier curve and curve-plane intersection method for the minimization of ship resistance in CFD

Chrismianto

Kim

2014

J Mar Sci Technol

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Parametric geometric modeling plays an important role in ship's hull form optimization by use of computational fluid dynamic (CFD) analysis. However, it is difficult to create satisfactory parametric modeling for some curved shapes, such as a ship's bulbous bow. In this study, the cubic Bezier curve and curve-plane intersection methods are applied to generate the parametric design of a bulbous bow in a solid modeling procedure by taking into account the input of 4 (four) design parameters. For this, a suitable application program interface script within the ANSYS Design Modeler was developed. An application to the ship resistance minimization by use of CFD was made to show that the proposed method could be implemented properly. In this respect, the parametric design of the bulbous bow of a container ship (KRISO Container Ship type) was chosen to be modified. First, it was shown that the computational results generated by CFD were close to the experimental data for the original ship hull form. The developed optimization method was subsequently applied to find the optimal bulbous bow. Finally, the dependence of the optimum bulbous bow on a ship's speed (some variations of Fn values) was investigated and the results were compared to each other.

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Parametric design of sailing hull shapes

Cited by 28 publications

References 9 publications

A novel design framework for generation and parametric modification of yacht hull surfaces

A novel design framework for generation and parametric modification of yacht hull surfaces

A hydrodynamic optimization design methodology for a ship bulbous bow under multiple operating conditions

Parametric bulbous bow design using the cubic Bezier curve and curve-plane intersection method for the minimization of ship resistance in CFD

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