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飞翼无人机外形与进排气几何一体化参数化建模

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飞翼布局是无人作战飞机的优先布局方案,其特点是机体与发动机进排气系统高度融合.针对飞翼式无人作战飞机概念方案快速几何建模需求,提出一种飞翼机体外形和进排气几何外形的一体化参数化建模方法.基于类函数/形函数方法,建立飞翼机体和进排气几何外形的参数化数学模型;确定关联的外形参数和关联控制规则,实现飞翼外形参数与进排气几何外形的匹配;将所建立的模型与CATIA二次开发方法相结合,实现飞翼式无人机概念方案三维几何模型的自动生成.结果表明:针对不同的进排气方案,本文方法能自动调节飞翼外形,匹配进排气系统的几何外形,有效地提高了飞翼式无人作战飞机概念设计的效率.
Parametric geometry modeling of flying wing UAV configuration integrated with intake and exhaust
Flying wing is a preferred configuration for unmanned combat air vehicle(UCAV),in which its airframe is highly integrated with intake and exhaust of propulsion system.To implement rapid geometric model of flying wing UCAV concept,a parametric geometry modeling method for flying wing UCAV configuration integrated with the intake and exhaust is proposed in this paper.Firstly,parametric models for configuration of the flying wing airframe and the intake and exhaust are established using class function/shape function.Then,the related geometry parameters between the flying wing airframe and the intake and exhaust are identified,and the correlative control rules are set to match airframe-propulsion interactions.3D geometric models of the flying wing UCAV configura-tion are automatically generated by use of the parametric geometry model and CATIA API.Application examples indicate that flying wing UCAV configurations can automatically adjust its shape to match the different intake and exhaust concepts by use of the proposed method.The method can effectively improve efficiency for flying wing UCAV conceptual design.

flying wingconceptual designparametric modelingairframe-propulsion integrationunmanned air vehicle

方欣瑞、余雄庆

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南京航空航天大学 航空学院, 南京 210016

飞翼 概念设计 参数化建模 机体和推进系统一体化 无人机

国家科技重大专项

J2019-Ⅲ-0009-0053

2024

航空工程进展
中国航空学会 西北工业大学

航空工程进展

CSTPCD
影响因子:0.207
ISSN:1674-8190
年,卷(期):2024.15(1)
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