【摘要】 多学科模型生成器是复杂产品多学科设计优化的关键问题之一。综合应用CATIA二次开发技术、网格生成软件Gridgen的脚本语言和Patran的二次开发语言,研究了一种多学科模型生成器。该模型生成器基于一个统一的三维CAD模型,可以自动生成各学科的分析模型。首先阐述编制多学科模型生成器的关键技术,然后以一个飞翼布局飞行器作为应用对象,详细阐述多学科模型生成器的编制过程。研究表明该多学科模型生成器能自动生成气动、隐身和结构分析模型,实现了从CAD模型到气动、隐身和结构分析模型的无缝连接,解决了飞翼布局飞行器总体多学科设计优化中的一个关键问题。更多还原

【Abstract】 The multidisciplinary model generator ( MMG) is one of the key issues for multidisciplinary design optimization ( MDO) of complex products. An approach for the MMG implementation was proposed by using API of Computer Aid Design ( CAD) software CATIA,script file of mesh generation software Gridgen and Patran Command Language. This MMG can automatically generate the analysis models for different disciplines based on a unified three dimensional CAD model. The key technology of MMG implementation was presented. A flying wing configuration aircraft was used to illustrate the detailed steps of MMG implementation. The application indicates that the MMG can automatically generate aerodynamic,radar cross section and structural analysis models. The seamless connection between CAD model and aerodynamic,stealthy and structural analysis models is accomplished,which solves one of the key issues for the multidisciplinary design optimization of the aircraft preliminary design with the flying wing configuration.更多还原