一种优化渔船船型的方法

IF 1.3 4区 工程技术 Q3 ENGINEERING, CIVIL
T. G. Tran, Ha Vu Nguyen, Q. Huynh
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引用次数: 0

摘要

船体优化是提高船舶安全性和经济技术效率的一个重要方面。这个问题已经研究了很长时间,并取得了许多重要成果,但在实际应用中,仍有一些内容需要改进,如现有船体的表示和转换、适用于特定类型船舶的最优数学模型或目标函数的求解方法等。在此基础上,本文,提出了一种优化渔船船体形状的方法,包括使用插值三次样条来生成精确通过给定偏移的现有船体的算法,并以在阻力预测中使用计算流体动力学(CFD)分析和在船体形状变换中使用Lackenby方法的格式构建,一个适用于渔船船体优化问题的数学模型,一个基于CFD、Kriging代理模型和传统优化技术的有效求解器。此外,在确保三维船体模型的准确性和确定用于CFD模拟的合适输入参数的基础上,还提出了提高基于CFD的阻力预测准确性的解决方案。本研究应用于一艘越南传统木制渔船MH076的船体形状优化,获得了符合理论和实践趋势的结果,基于CFD的阻力值和相应的模型测试数据的偏差在63%的范围内,并且在设计运行时总阻力或所需功率的减少约为8.81%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Method for Optimizing the Hull Form of Fishing Vessels
Hull optimization is an important aspect of ship design to improve safety and economic-technical efficiency for ships. This problem has been studied for a long time and has achieved many significant results, but in practical applications, there are still some contents that need to be improved such as the presentation and transformation of the existing hulls, an optimal mathematical model suitable for a specific type of ship, or method for solving the objective function, etc. On that basis, in this paper, a method for optimizing the hull form of fishing vessels is presented, including algorithms using interpolating cubic spline to generate the existing hulls that pass exactly through the given offsets and are constructed in a format to use both Computational Fluid Dynamics (CFD) analysis in resistance prediction and Lackenby method in hull form transformation, a suitable mathematical model for hull optimization problem of fishing vessels, an effective solver based on a combination of CFD, Kriging surrogate models, and traditional optimization techniques. In addition, solutions for improving the accuracy of CFD-based resistance predictions are also presented based on ensuring the accuracy of the 3D hull models and determining the suitable input parameters used for CFD simulations. This study was applied to optimize the hull form of a Vietnamese traditional wooden fishing vessel, symbol MH076, and obtained results that are consistent with the theoretical and practical trends, with the deviations of CFD-based resistance values and corresponding model test data are within the range of 63% and the reduction in total resistance or required power at design operating is around 8.81%.
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来源期刊
Journal of Ship Research
Journal of Ship Research 工程技术-工程:海洋
CiteScore
2.80
自引率
0.00%
发文量
12
审稿时长
6 months
期刊介绍: Original and Timely technical papers addressing problems of shipyard techniques and production of merchant and naval ships appear in this quarterly publication. Since its inception, the Journal of Ship Production and Design (formerly the Journal of Ship Production) has been a forum for peer-reviewed, professionally edited papers from academic and industry sources. As such, it has influenced the worldwide development of ship production engineering as a fully qualified professional discipline. The expanded scope seeks papers in additional areas, specifically ship design, including design for production, plus other marine technology topics, such as ship operations, shipping economic, and safety. Each issue contains a well-rounded selection of technical papers relevant to marine professionals.
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