基于全参数化建模的单拖网渔船水动力船体形状优化

IF 0.6 Q4 ENGINEERING, MARINE
Wu Hao, Lu Cong Hong, Liu Qiang, Yu Xin, Fan Wei, Peng Bi Ye
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引用次数: 0

摘要

背景:绿色船舶技术在船舶设计的各个领域越来越重要。目的:探索船舶初级设计阶段的节能环保船舶。方法:结合计算流体动力学(CFD)分析,采用Sobol和NSGA-II算法,提出了一种基于全参数化建模的船体外形优化方法。以一艘674 m3单拖网渔船为例,利用CAESES软件采用f样条曲线对船身外形进行全参数化建模,利用SHIPFLOW集成软件对全尺寸船的总阻力进行数值计算。结果:所提出的优化方法能够很好地完成受排水量和纵浮心约束的船体外形设计自动化过程。在设计航速为11.5 kn时,优化后的船体总阻力比初始型减小了12.2%。结论:表明本文提出的基于全参数化建模的船体外形优化方法在实际船舶设计实践中具有较好的工程适用性和广阔的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Hydrodynamic hull form optimization of a single trawler based on full parametric modeling
Background: The green ship technologies are gaining in importance in diverse areas of ship design. Objective: To explore the energy-saving and environmentally friendly ship during the primary ship designs stage. Methods: A hull form optimization method based on the full parametric modeling is proposed, in which the Computational Fluid Dynamic (CFD) analysis is integrated, and the algorithms of Sobol and NSGA-II are used. Taking a 674 m3 single trawler as an example, the full parametric modeling of forebody hull form is adopted by employing an F-spline curve with the software CAESES and the total resistance of the full-scale ship is computed by the integrated software SHIPFLOW numerically. Results: It is proved that the presented optimization method can engage well in the automation process of the hull form design under the constraints of displacement and longitudinal center of buoyancy. Compared with the initial hull form, the total resistance of the optimal ship at the design speed of 11.5 kn decreases 12.2%. Conclusions: It indicates that the proposed method of hull form optimization based on full parametric modeling proposed in this paper has better engineering applicability and broad application prospect in practical ship design practices.
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来源期刊
CiteScore
2.60
自引率
0.00%
发文量
8
期刊介绍: The journal International Shipbuilding Progress was founded in 1954. Each year four issues appear (in April, July, September and December). Publications submitted to ISP should describe scientific work of high international standards, advancing subjects related to the field of Marine Technology, such as: conceptual design structural design hydromechanics and dynamics maritime engineering production of all types of ships production of all other objects intended for marine use shipping science and all directly related subjects offshore engineering in relation to the marine environment ocean engineering subjects in relation to the marine environment
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