【摘要】 如何快速地生成飞机三维外形模型是飞机总体设计中的一个重要问题。本文以飞翼布局飞机作为研究对象,研究了一种飞翼外形参数化数学模型,包括总体轮廓参数化模型、剖面形状参数化模型和过渡面参数化模型。基于该模型,应用CATIA二次开发技术,编制了能自动生成飞翼三维外形的CAD模型程序。应用算例表明,本文提出的参数化数学模型和所开发的程序能快速生成各种不同的飞翼三维外形模型。更多还原

【Abstract】 Quick generation of a three-dimensional shape model of aircraft is one of the most important issues in the process of aircraft conceptual/preliminary design.The aim of this paper is to find an approach to rapidly generate a 3-D shape of flying-wing configurations by the parametric geometric modeling under CATIA.The geometric model of the flying-wings consists of three elements: contour parametric,section parametric and transition parametric model.Based on this model,a Microsoft Visual Basic routine for the parametric geometric modeling of the flying-wings was developed and implemented by the VB-CATIA scripts.The results from the application to 3 flying wing configurations show that the parameterized mathematical model and routine developed here can rapidly generate 3-D shapes of different flying-wing configurations.更多还原