摘要
为获得影响大方形系数船舶艉部线型的主要船型特征参数,以某肥大型船为研究对象,在考虑排水体积约束的情况下,利用CAESES软件半参数化变形技术实现艉部线型自动变换,构建系列船型方案,并采用SHIPFLOW软件评估这些方案的阻力性能和伴流。应用软件集成的优化算法组合(Sobol与Nelder Mead Simplex优化算法组合)构建船型优化策略,回归分析系列船型方案的优化效果,并采用Star CCM+软件验证优选方案在船舶阻力和伴流不均匀度优化方面的有效性。通过回归分析发现,艉轴上方最大反曲位置的丰满度和艉封板变形对伴流的影响更显著,优选方案相比原方案有效功率下降约2%,伴流不均匀度下降约6.4%。
A ship with high block coefficient is studied to determine the influential ship type characteristic parameters in designing the stern form of full-formed ships.The stern form is modeled and automatically varied under the constraint of drainage volume through semi-parametric control by means of software CAESES and corresponding resistance performance and wake of the ship type are calculated by means of software SHIPFLOW.The optimization strategy is designed based on the combination of Sobol algorithm and Nelder Mead Simplex algorithm,and the regression analysis is performed to examine the resistance and wake non-uniformity of different ship forms.The Performances for the form variations are calculated and verified by software Star CCM+.The findings are as follows:the fullness of the stern form at the maximum contrary flexure position above the target stern axis and the shape of the stern transom have significant impact on the wake.The optimization achieved about 2%reduction of the effective power and 6.4%reduction of the wake non-uniformity compared with the original design.
作者
高旋
高玉玲
陈伟民
杜云龙
司南
GAO Xuan;GAO Yuling;CHEN Weimin;DU Yunlong;SI Nan(State Key Laboratory of Maritime Technology and Safety,Shanghai Ship and Shipping Research Institute Co.,Ltd.,Shanghai 200135,China;Key Laboratory of Marine Technology Ministry of Communications,Shanghai Ship and Shipping Research Institute Co.,Ltd.,Shanghai 200135,China)
出处
《上海船舶运输科学研究所学报》
2024年第5期8-15,55,共9页
Journal of Shanghai Ship and Shipping Research Institute
基金
国家重点研发计划(2022YFB4300802)。
关键词
肥大型船
参数化变形
船型优化
阻力
伴流不均匀度
优化算法
full-formed ship
parametric form variation
ship form optimization
resistance
wake non-uniformity
optimization algorithm
