基于势流理论的集装箱船型球首优化设计研究  

Study on Optimal Design of Bulbous Bow for a Container Vessel Based on Potential Flow Theory

作　　者：张宝吉[1] 马坤[2] 纪卓尚[2] 

机构地区：[1]上海海事大学海洋环境与工程学院,上海201306 [2]大连理工大学船舶工程系,大连116024

出　　处：《武汉理工大学学报（交通科学与工程版）》2011年第3期505-508,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金青年科学基金项目资助(批准号:51009087)

摘　　要：带球首船型的降阻效果已被许多理论和实践所证实,然而要确定球首的大小和位置却比较困难,为了快速、准确地获得阻力性能优良的船型,以势流兴波阻力Rankine源法为基础,结合非线性规划法中的SUMT内点法进行船型优化设计.选取某集装箱船型为初始船型,对其首部进行三种改型,然后分别对其改型区域进行优化设计,得到三个带球首的改良船型.通过分析改良船型的阻力性能和球首形状,表明不同球首的降阻效果,从而为理论确定球首的大小和位置提供有益的借鉴,这一设计思想也可以改变已往大多凭经验和试验来设计球首.Though the effect of drag reduction of the hull form with bulbous bow has been confirmed by theories and practices,the process of determining the position and the size of the bulbous bow is still extraordinarily difficult.An optimal method,which is based on the Rankine source method and combined with SUMT interior point method of Nonlinear Programming（NLP） is applied in this article to obtain the hull form with the excellent resistance performance quickly and accurately.Firstly,apply three kinds of modification to the bow of a container vessel selected as the parent ship to obtain three kinds of original hull form,and then three kinds of optimal hull form with bulbous bow are obtained with the application of optimal method to the modified region respectively.The analysis of resistance performance and bulbous bow form shows the different effect of drag reduction with different bulbous form.

关 键 词：球首 最小阻力船型 Rankine源法 优化设计 

分 类 号：U661.1[交通运输工程—船舶及航道工程]