NURBS方法的深V型三体船稳性  

Research on deep-vee trimaran stability based on the non-uniform rational B-spline method

作　　者：胡开业[1] 卢友敏[1,2] 丁勇[1] 

机构地区：[1]哈尔滨工程大学多体船国防重点学科实验室,黑龙江哈尔滨150001 [2]武昌船舶重工有限责任公司潜艇设计工艺所,湖北武汉430060

出　　处：《哈尔滨工程大学学报》2011年第10期1273-1277,1294,共6页Journal of Harbin Engineering University

基　　金：多体船国防重点学科实验室开放基金资助项目(002010260737);中央高校基本科研业务费专项基金资助项目(HEUCF100111)

摘　　要：为了掌握深V型三体船稳性特征,采用NURBS方法对其稳性进行了研究.利用NURBS技术建立了一深V型三体船模型并进行了相应的网格划分,给出了从传统二维型线图表示向三维立体表示的转化过程,并编制程序对其稳性进行计算和分析.研究表明,深V型三体船的稳性较同吨位圆舭型三体船的稳性更为优异,片体布局和片体吃水的不同对三体船稳性有较大影响,增加片体与主体间的跨距可显著提高三体船的稳性,取适当的片体吃水值和底部横向斜升角对提高深V型三体船稳性有一定作用.This paper researched deep-vee trimaran stability performance using the non-uniform rational B-spline （NURBS） method. Applying the NURBS method, a deep-vee trimaran hull surface model was designed, and corresponding grid division was used to show the transformation process from traditional 2-dimensional drawing lines to 3-dimensional representation of the deep-vee trimaran hull. A Fortran （Formula transformation） program was devel- oped to calculate and analyze the intact stability of the deep-vee trimaran. The research shows that the deep-vee tri- maran has better stability performance than the round-bilge trimaran with the same displacement. As the side hull transverse position or displacement increases, the trimaran^s stability increased. The result also shows that proper deadrise angle has a certain influence on the deep-vee trimaran~ intact stability.

关 键 词：非均匀有理B样条 三体船 稳性 片体布局 

分 类 号：U661.2[交通运输工程—船舶及航道工程]