Method involving shape-morphing of multiple hull forms aimed at organizing and visualizing the propulsive performance of optimal ship designs
Method involving shape-morphing of multiple hull forms aimed at organizing and visualizing the propulsive performance of optimal ship designs
复制标题
涉及多种船体形状变形的方法，旨在组织和可视化最佳船舶设计的推进性能
DOI：
10.1016/j.oceaneng.2022.112355
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发表时间：
2022
影响因子：
5
通讯作者：
Ichinose Yasuo
中科院分区：
文献类型：
--
作者：
Ichinose Yasuo
大多数情况下，成功设计的船体形式开发使用传统的非线性优化方法提出的最佳候选人在一个特定的设计约束。此外，这些最佳设计包含在评估参数和设计条件方面的不确定性，从而提出了设计者需要调查以做出建造昂贵的船舶结构的决定的设计思想的鲁棒性问题。本文提出了一种组织和可视化任意数量的船体形式组合的推进性能的方法。通过引入重心坐标系的概念，将变形技术从仅限于两种或三种船体形状的混合，推广到N种船体形状的变形。为此，提出了以各船体型为基础的船型坐标系。通过对几种船型设计空间的分析，验证了该方法的有效性。该方法通过对最优点周围的设计空间进行分析和可视化，有助于提高非线性优化和机器学习获得的最优解的鲁棒性。
Most cases of successfully designed hull forms developed using conventional nonlinear optimization methods propose the optimal candidates in a particular design constraint. Furthermore, these optimal designs contain uncertainties in terms of the evaluation parameters and design conditions, thereby raising the issue of robustness of the design idea that the designer needs to investigate to arrive at a decision for building the expensive structure of a ship. This paper proposes a method to organize and visualize the propulsive performance of any number of hull form combinations. The shape morphing technique, which has been limited to the blending of two or three hull forms, is extended to the shape morphing ofNhull forms by introducing the concept of the barycentric coordinate system. Thus, a hull-form coordinate system with each hull form as a basis is proposed. The effectiveness of this method is demonstrated by analyzing several hull-form design spaces. This method can contribute to improving the robustness of the optimal solution obtained by nonlinear optimization and machine learning, by analyzing and visualizing the design space around the optimal point.