基于多种组合优化算法外形优化设计  

Shape optimization design based on a variety of combinatorial optimization algorithms

作　　者：谢鹏 高志旺 王志东[1] 凌宏杰 XIE Peng;GAO Zhi-wang;WANG Zhi-dong;LING Hong-jie(College of Ship and Marine Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;Marine Equipment Research Institute,Jiangsu University of Science And Technology,Zhenjiang 212003,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003 [2]江苏科技大学海洋装备研究院,江苏镇江212003

出　　处：《舰船科学技术》2021年第7期45-48,共4页Ship Science and Technology

摘　　要：针对船型特征参数和特征参数曲线对船体阻力性能的影响,首先利用CAESES软件建立完全参数化船体模型,并用FINE/Marine软件进行水动力性能计算,并与试验结果进行比较,验证了数值模拟的可靠性。对船型进行优化时,以设计航速2.02 m/s下的总阻力为优化目标,利用2种组合优化算法进行分析,发现第1种Sobol算法和NSGA-II算法组合优化算法具有优势。船型优化后球鼻首发生了显著变化,球鼻首变为抬首型球鼻首,其中,球鼻首的长度和宽度变化对船体阻力影响不大,基本上可以忽略。在设计航速下,优化后的总阻力减少14.89%,摩擦阻力减少0.43%,剩余阻力减少36.9%。In view of the influence of ship shape characteristic parameters and characteristic parameter curve on hull resistance performance,then CAESES software was used to establish a completely parametric hull model,and FINE/Marine software was used to calculate the hydrodynamic performance,and compared with the test results,to verify the reliability of the numerical simulation.When ship type is optimized,the total resistance under the design speed of 2.02 m/s is taken as the optimization objective,and two combination optimization algorithms are used to analyze it.It is found that the first Sobol algorithm and nsga-ii algorithm have advantages.After ship shape optimization,bulbous bow changed significantly,and bulbous bow changed into bulbous bow,in which the length and width of bulbous bow had little influence on the hull resistance and could be ignored basically.Under the design speed,the optimized total resistance was reduced by 14.89%,frictional resistance by 0.43%and residual resistance by 36.9%.

关 键 词：高速船 船型 球鼻首 优化 数值模拟 

分 类 号：U662.2[交通运输工程—船舶及航道工程]