上海交通大学学报

上海交通大学学报（自然版）

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基于Rankine源法的船体线型优化设计

张宝吉1，马坤2
  

  1. (1.上海海事大学 海洋环境与工程学院，上海 201308； 2.大连理工大学 船舶工程学院， 辽宁 大连 116024)
  • 收稿日期:2009-10-30 修回日期:1900-01-01 出版日期:2010-10-31 发布日期:2010-10-31

Optimization Design of Hull Lines Based on Rankine Source Method

ZHANG Baoji1，MA Kun2
  

  1. (1.College of Ocean Environment Engineering, Shanghai Maritime University, Shanghai 201306, China; 2.School of Naval Architeoture Engineering Dalian University of Technology, Dalian 116024,Liaoning,China)
  • Received:2009-10-30 Revised:1900-01-01 Online:2010-10-31 Published:2010-10-31

摘要： 在船舶初步设计阶段，为了快速、准确地获得阻力性能优良的船型方案，将势流兴波阻力理论Rankine源法、黏性理论和最优化技术有机结合，开发了适用于实船的线型优化设计程序.在优化计算过程中，将降低兴波阻力作为主要目标，将排水量限制作为基本约束条件，将反映船型变化的船型修改函数参数作为设计变量，采用非线性规划法中的SUMT(sequential unconstrained minimization technique)内点法进行最优化计算.通过对某高速水面舰船前半体不同区域的优化计算，获得的改良船型降阻效果明显，由此验证了该程序用于船型优化的有效性和可行性.

关键词: Rankine源法, 线型优化, 非线性规划法

Abstract: In the preliminary design of a ship, in order to obtain a hull form with excellent resistance performance rapidly and accurately, the optimized design program of ship lines using optimal fullscale ship was developed, which combined the Rankine source method (one of the wavemaking resistance theory of potential flow ) and viscous theory with the optimization technique. In the optimization process, the SUMT interior point method of Nonlinear Programming (NLP) was proposed with reducing wavemaking resistance as the main objective function, with appropriate displacement as a basic constraint condition and the parameters of hull form modification function as design variables. Finally, the numerical optimization examples for different regions of forebody of fullscale surface vessel were provided, which indicated that the resistance was reduced distinctly by this optimal method.

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