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

机译:多种工况下船形球首的水动力优化设计方法

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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...
机译:本文的主要目的是描述一种考虑了多种运行条件的,用于船首球形船首水动力优化的创新方法。与仅基于合同规定的设计条件的传统优化过程相比,该方法更具实用性和有效性。通过采用F样条曲线采用参数化形式方法,以便使用修改后的形式设计参数来生成船体球形弓形形式的变体,从而产生基于改进遗传算法的优化系统。朗肯源面板法用于流体力学评估,其中考虑了非线性自由表面条件以及船舶的纵倾和下沉。通过将计算结果与实验数据进行比较,研究了所提出的方法在大型集装箱船上的有效性和有效性,这表明所提出的方法可以很好地参与自动化...

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