双体船阻力性能计算及船型设计优化

邓芳1， 邓魏彬2

（1.青岛科技大学 机电工程学院，山东 青岛 266061；2.中交二航局工程装备分公司，湖北 武汉 430014）

摘要： 研究了基于船体阻力性能优化的双体船数字化设计方法。优化选取适宜菱形系数Cp和宽度吃水比b/T，运用Maxsurf建立双体船片体模型，并运用Hullspeed细长体理论分析不同片体中心距K/b及长宽比L/b下的双体船阻力，得出兴波阻力及其干扰因子变化规律。分析找出设计船的临界傅汝德数Frc和片体无干扰傅汝德数Fr0，以及对阻力影响减弱的K/b和L/b范围，据此进行双体船船型优化，完成双体船设计。

关键词： 双体船； 船型优化； 细长体理论； 兴波阻力； 干扰因子

中图分类号： U 661.31+1                      文献标志码： A

Resistance Calculation and Hull Design and Optimization of Catamaran

DENG Fang1, DENG Weibin2

(1.College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China;

2.Engineering

Equipment Company, China Communications Construction Company Second Harbor Engineering Company Ltd., Wuhan 430014, China)

Abstract： This paper investigates the method of catamaran numerical design and optimization, aiming at improving its resistance performance. By optimal selection for diamond coefficient Cp and beamdraft ratio b/T, the catamaran hull model was established. The investigation was performed based on the slender body method, by calculating the wave resistance of varying spacing ratio K/b and lengthwidth ratio L/b, the variation of ship wave resistance and its interference factor was obtained. Thus, the hull parametric optimization was conducted and the catamaran design was accomplished based on the analysis results of the critical Froude number Frc, the noninterference Froude number Fr0 between hulls, and the insensitive resistance influence range of K/b and L/b.

Key words: catamaran; parametric optimization; slender body method; wave resistance; interference factor

收稿日期： 20131231

作者简介： 邓芳（1981─），女，讲师.