结合NURBS曲面理论的主船体模型CAD建模研究  

Research on CAD modeling of main hull model based on NURBS surface theory

作　　者：李韶楠 LI Shao-nan(Henan Provincia1 Research Center of Wisdom Education and Intelligent Technology,Application Engineering Technology,Zhengzhou 450000,China)

机构地区：[1]河南省智慧教育与智能技术应用工程技术研究中心,河南郑州450000

出　　处：《舰船科学技术》2024年第5期145-148,共4页Ship Science and Technology

摘　　要：本文研究NURBS曲面理论,重点分析NURBS曲线以及曲面的定义和表达式,给出B样条曲线的计算方法,研究船舶曲线曲面光顺的解算方法,并且引入剪力跃度平方和的定义;研究船舶三维稳定性的计算方法以及船舶静稳性力臂的求解算法,并分析静稳性力臂的变化曲线以及船舶吃水深度的变化曲线;最后分析船舶船体模型的CAD建模技术,并给出船舶快速建模系统的设计方法。This article studies the theory of NURBS surfaces,with a focus on analyzing the definitions and expressions of NURBS curves and surfaces.It provides a calculation method for B-spline curves,studies the solution method for smooth-ing ship curves and surfaces,and introduces the definition of the sum of squared shear jumps;Studied the calculation meth-od for three-dimensional stability of ships and the algorithm for solving the static stability force arm of ships,and analyzed the variation curve of the static stability force arm and the variation curve of the ship's draft depth;Finally,the CAD model-ing technology for ship hull models was studied,and a design method for a fast ship modeling system was provided.

关 键 词：曲面理论 船体模型 建模 

分 类 号：U664.22[交通运输工程—船舶及航道工程]