摘要
以目标船舶主尺度要素和承载船舶信息的基本曲线为输入信息,以曲线应变能为目标函数,提出参数化生成以NURBS表示船体型线的数学模型,采用两种优化计算方法(牛顿/拉夫森迭代法和微分群体智能算法)来数值求解该模型,并比较了不同算法所得出的船体曲线和计算过程。结果表明,依据本文介绍的数值算法,经参数化生成的船体型线能满足工程应用要求,并有望在船型优化设计中应用。
The target ship＇s principle elements and basic curves are chosen as the input parameters and strain energy chosen as target function to propose a new mathematic model presented with NURBS. Two different optimization algorithms, that is, Newton-Raphson method and Different Swarm method are applied, and the difference between the two methods in calculation results and calculation processes are inuesigated. Results show that the parametric ship hull form developed in this paper can satisfy engineering requirments, and present method can be used in ship hull form optimization design.
出处
《中国造船》
EI
CSCD
北大核心
2012年第3期68-74,共7页
Shipbuilding of China
关键词
参数化
型线设计
曲线应变能
光顺
智能群体
parametric
hull form design
bending energy
fairness
Different Swarm
