摘要
金枪鱼船对航速有很高要求,因此优化船体线型以减少阻力是较为重要的。以总阻力系数(C_(t))为目标函数,重点研究船体尾部型线的优化。验证了计算流体动力学(CFD)数值方法的可靠性,对某金枪鱼船进行参数化建模;根据灵敏度分析,从4个设计参数中筛选2个作为设计变量,再构建多项式响应面作为设计优化空间,并采用自适应矩估计(ADAM)算法求解。结果表明:设计工况下优化船型较母型船C_(t)降低1.85%,尾部兴波、压力均有所改善。研究结果可为今后相关研究提供参考和支持。
Because the tuna boats have significant requirements on speeding,it is essential to optimize the stern profile to reduce the resistance.The total resistance coefficient(C_(t))is considered as the objective function and concentrate on the optimization of stern-half profile.The reliability of computational fluid dynamics(CFD)simulation circumstance is proved,and the ship hull is parametrically modeled.The number of design parameters reduced from four to two after the sensitivity analysis,and a polynomial responding surface is constructed as the design and optimization space.The Adaptive Moment estimation method(ADAM)is applied to solve the optimum solution.The result indicates that the C_(t)reduced 1.85%between the optimum and original model under design condition,and the hydrodynamic performance around stern is improved.The research results can provide reference and support the relevant studies in the future.
作者
张起敏
李广年
袁文鑫
祁江涛
杜林
郭海鹏
ZHANG Qimin;LI Guangnian;YUAN Wenxin;QI Jiangtao;DU Lin;GUO Haipeng(Faculty of Maritime and Transportation,Ningbo University,Ningbo 315211,Zhejiang,China;National Key Laboratory of Science and Technology on Hydrodynamics,China Ship Scientific Research Center,Wuxi 214082,Jiangsu,China)
出处
《船舶工程》
CSCD
北大核心
2022年第8期41-47,共7页
Ship Engineering
基金
宁波市科技创新2025重大专项(2020Z076)
作者简介
张起敏(1997-),男,硕士。研究方向:船舶与海洋结构物设计制造;通信作者:李广年(1980-),男,博士、教授。研究方向:船舶水动力构型优化设计研究。
