基于修正函数法的双燃料散货船船型优化  

Research on the optimization of a bulk carrier based on the modified function method

作　　者：沈冠之 冯君 郑安燃 宗涛[1] SHEN Guan-zhi;FENG Jun;ZHENG An-ran;ZONG Tao(China Ship Scientific Research Center,Shanghai 200011,China)

机构地区：[1]中国船舶科学研究中心,上海200011

出　　处：《舰船科学技术》2022年第10期6-9,共4页Ship Science and Technology

摘　　要：随着绿色节能要求的提高,对船型优化工作的质量和设计周期提出了新要求。针对传统的船型优化方法在船体变形阶段耗时长、效率低的特点,基于修正函数方法,开发了船体自动变形程序。利用该程序,实现了21万吨双燃料散货船船体线型的自动变形。结合CFD线型优化经验,开展船首、船尾的线型优化,通过对优化过程中各线型方案的CFD结果进行分析,最终得到综合性能最优的优化船型。此外,在静水中对最终得到的优化船型进行快速性模型试验验证。结果表明,优化船型的螺旋桨收到功率较初始线型降低约3%。该方法成功实现了船体几何的快速变形,与传统的手动修改线型相比,节省大量时间,能获得更多数量的线型方案,提高了船型优化效率的同时达到性能指标要求。With the improvement of green energy saving requirements,new requirements have been put forward for the quality and design cycle of ship optimization work.Aiming at the time-consuming and low efficiency characteristics of traditional hull form optimization methods in the hull deformation stage,an automatic deformation program was developed based on the modified function method.Using this program,the automatic deformation of the hull lines of the 210000DWT bulk carrier was realized.Combining the experience of CFD,carry out line optimization of the bow and stern,and analyze the CFD results of each hull form in the optimization process,and finally obtain the optimized hull form with the best overall performance.In addition,the final optimized hull form was verified by a towing tank model test.The test results showed that the power received by the propeller of the optimized ship was about 3%lower than that of the initial ship.This method has successfully realized the rapid deformation of the hull lines.Compared with the traditional manual modification of the hull form,it saves a lot of time,can obtain a larger number of hull form schemes,and improves the optimization efficiency of the hull form while meeting the performance index requirements.

关 键 词：修正函数 自动变形 CFD 船型优化 

分 类 号：U662.2[交通运输工程—船舶及航道工程]