运载火箭贮箱典型结构件自主统一造型方法研究  

Research for the Unified and Independent Modeling Method of the Classic Parts on the Tank of Launch Vehicle

作　　者：王腾 张茜 李澍 聂蓉梅 Wang Teng;Zhang Qian;Li Shu;Nie Rong-mei(Beijing Institute of Astronautical Systems Engineering,Beijing,100076)

机构地区：[1]北京宇航系统工程研究所,北京100076

出　　处：《导弹与航天运载技术》2020年第6期33-38,共6页Missiles and Space Vehicles

基　　金：国防基础科研项目(A0320131002)。

摘　　要：以实现贮箱典型结构件包含任意椭圆弧段、直线段、圆弧段的统一描述为目的,通过研究贮箱典型结构件的模型特点及NURBS表示的原理,实现了自主可控的基于航天产品结构的任意曲线类型的三维模型描述方法的定义,并借助开源几何造型引擎OpenCASCADE对统一描述的贮箱典型结构件的方法可行性进行了验证,为航天弹箭体三维模型的自主统一表示做技术储备。For the purpose to realize the uniform description of the arbitrary ellipse arc and line segment and arc segment,the modeling feature of the classic parts on the tank of launch vehicle and the principle of the NURBS are researched.Finally the self-controlled uniform description for the arbitrary model of the launch vehicle is raised and the feasibility of the uniformed description method is verified by the open source kernel OpenCASCADE,which makes theoretical preparations for the self controlled and uniformed description method of 3D launch vehicle.

关 键 词：贮箱 NURBS 自主造型 OPENCASCADE 

分 类 号：TH122[机械工程—机械设计及理论]