基于FFD和轴变形方法的翼身融合水下滑翔机外形参数化建模  

Shape parameterization of blended-wing-body underwater glider based on FFD and axis deformation method

作　　者：张代雨 王志东[1] 凌宏杰[1] 朱信尧 ZHANG Dai-yu;WANG Zhi-dong;LING Hong-jie;ZHU Xin-yao(School of Naval Architecture and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003

出　　处：《舰船科学技术》2021年第3期89-92,125,共5页Ship Science and Technology

基　　金：国家自然科学基金资助项目(51909110);江苏省高等学校自然科学研究资助项目(19KJB570001);江苏省高校高技术船舶协同创新计划(HZ20190019)。

摘　　要：外形参数化是水下滑翔机外形优化设计的重要内容,针对现有几何参数化方法在翼身融合水下滑翔机外形参数化中存在的问题,本文提出一种基于FFD和轴变形方法的翼身融合水下滑翔机外形参数化建模方法。该方法首先基于B样条方法,建立翼身融合水下滑翔机外形的FFD参数化模型,实现滑翔机外形的自由变形;然后在此基础上,针对FFD参数化方法优化变量多的缺点,提出一种翼身融合水下滑翔机外形的轴变形参数化方法,对FFD控制体进行间接变形操纵,减少优化变量的数目;最后通过实例对所提方法的有效性进行了验证。Shape parameterization is an important part of the shape optimization design of underwater glider.In view of the problems existing in the current geometric parameterization methods in the shape parameterization of blended-wing-body underwater glider,this paper proposes a new parametric method of blended-wing-body underwater glider based on FFD and axial deformation method.Firstly,based on the B-spline method,the FFD parametric model of blended-wing-body underwater glider is established to realize the free deformation of the glider shape.Then,aiming at the disadvantage of the FFD method with many optimization variables,an axial deformation parametric method of blended-wing-body underwater glider is proposed to indirectly manipulate the FFD control points to reduce the optimization variables.Finally,the effectiveness of the proposed method is verified by examples.

关 键 词：水下滑翔机 自由变形方法 轴变形方法 B样条方法 

分 类 号：U674.941[交通运输工程—船舶及航道工程]