双体船阻力性能计算及船型设计优化  

Resistance Calculation and Hull Design and Optimization of Catamaran

作　　者：邓芳[1] 邓魏彬 

机构地区：[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

出　　处：《青岛科技大学学报（自然科学版）》2015年第1期72-76,共5页Journal of Qingdao University of Science and Technology:Natural Science Edition

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。This paper investigates the method of catamaran numerical design and optimi- zation, 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 opti- mization was conducted and the catamaran design was accomplished based on the analy- sis results of the critical Froude number Frc, the non-interference Froude number Fro between hulls, and the insensitive resistance influence range of K/b and Lib.

关 键 词：双体船 船型优化 细长体理论 兴波阻力 干扰因子 

分 类 号：U661.311[交通运输工程—船舶及航道工程]