大型客机概念设计的外形参数化CAD模型  

Parametric CAD model of aircraft configuration for civil jets conceptual design

作　　者：湛岚[1] 余雄庆[1] 沈琼[1] 

机构地区：[1]南京航空航天大学飞行器先进设计技术国防重点学科实验室,江苏南京210016

出　　处：《计算机工程与设计》2009年第16期3887-3890,共4页Computer Engineering and Design

摘　　要：为了加快飞机概念设计中外形造型的进程,应用一种基于形状函数/分类函数变换的参数化建模方法,研究出一种针对大型客机CAD模型的外形参数化方法。该方法可以用较少的参数来完成机身、机翼、短舱等飞机部件的外形建模。采用CATIA二次开发技术,开发了一个面向大型客机概念设计的参数化CAD模型快速生成的软件。精度测试表明,用该软件生成的机翼-机身组合体CAD模型完全能满足概念设计的精度需求,并为以后进一步实现客机多学科设计优化系统打下了基础。To provide an efficient way to shorten cycle of aircraft conceptual design and reducethe worklad, a parametric mathematical model for civil jets is proposed by using class function and shape function transformation method, which can use relative few parameters to describe the components including fuselage, wing, nacelle and empennage. The software, which can automatically generate the CAD model of the civil jets, was developed using AP1 of the commercial CAD software CATIA. A wing-body CAD model generated by the software is validated. It is concluded that the accuracy of the CAD model is quite satisfactory for conceptual design of the civil jets and is used for the multidisciplinary design optimization of the civil jets.

关 键 词：飞机设计 计算机辅助设计 参数化模型 概念设计 客机 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]