扭曲型材腹板曲面几何模型研究  

Study on Geometric Model of Web Surface of Twisted Profile

作　　者：王全华[1,2] 李培勇 吕浩[3] 张文杰 WANG Quanhua;LI Peiyong;LYU Hao;ZHANG Wenjie(Wuhan University of Technology Enterprise Group Co.Ltd.,Wuhan 430063,China;Wuhan Yihua Ship Design Co.Ltd.,Wuhan 430063,China;School of Transportation,Wuhan University of Technology,Wuhan 430063,China)

机构地区：[1]武汉理工大学产业集团有限公司,武汉430063 [2]武汉易华船舶设计有限公司,武汉430063 [3]武汉理工大学交通学院,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2021年第3期507-511,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

摘　　要：基于扭曲型材构件的几何特征,将腹板曲面作为主要的研究对象.采用B样条曲面对型材腹板曲面进行建模,从理论上证明了扭曲型材构件腹板曲面的任意横剖线都是直线,且扭曲型材腹板曲面具有直纹面的特征,可以采用直纹面方程进行建模.算例结果验证了上述结论的正确性.Based on the geometric characteristics of twisted profile members,the web surface was taken as the main research object.B-spline surface was used to model the web surface of profile,and it is proved theoretically that any cross-section line of web surface of twisted profile member is a straight line.Moreover,the web surface of twisted profile has the characteristics of ruled surface,which can be modeled by ruled surface equation.The results of an example verify the correctness of the above conclusions.

关 键 词：船舶扭曲型材构件 腹板曲面 曲面建模 B样条曲面 直纹面 

分 类 号：U662.2[交通运输工程—船舶及航道工程]