舰载察打无人机概念设计与隐身特性数值模拟  

Conceptual Design and Numerical Simulation of Stealth Characteristics for Shipborne Surveillance and Attack UAV

作　　者：岳奎志 程亮亮 赵建忠 Yue Kuizhi;Cheng Liangliang;Zhao Jianzhong(No.1 School,Naval Aviation University,Yantai 264001,China;No.2 School,Naval Aviation University,Yantai 264001,China;No.3 School,Naval Aviation University,Yantai 264001,China)

机构地区：[1]海军航空大学一院,山东烟台264001 [2]海军航空大学二院,山东烟台264001 [3]海军航空大学三院,山东烟台264001

出　　处：《兵工自动化》2022年第2期60-64,共5页Ordnance Industry Automation

基　　金：国家自然科学基金(51975580)。

摘　　要：为提高海军航空兵远洋战略投送能力,概念设计一种舰载察打无人机,并进行隐身特性分析。采用CATIA软件概念设计3D数字样机,基于物理光学法计算三角形面源散射,基于等效电磁流法计算劈边缘绕射,并将二者结合进行隐身特性分析,综合数值模拟飞机的雷达散射截面积(radar cross-section,RCS)散射特性。实验结果表明:采用CATIA软件,能高效地概念设计飞机的3D数字样机,可用于论证飞机设计方案;该RCS计算方法可高效地计算复杂飞机的RCS散射特性。In order to improve the ocean-going strategic delivery capability of naval aviation, a carrier-based reconnaissance and attack UAV is conceptually designed, and its stealth characteristics are analyzed. The 3D digital prototype is conceptually designed by using CATIA(computer aided three-dimensional interface application) software.The scattering of a triangular surface source is calculated based on the physical optics method, and the diffraction of the wedge edge is calculated based on the equivalent current method. The stealth characteristics are analyzed by combining the two methods, and the radar cross section(RCS) scattering characteristics of the aircraft are numerically simulated. The experimental results show that the 3D digital prototype of aircraft can be designed efficiently by using CATIA software,which can be used to demonstrate the aircraft design scheme, and the RCS calculation method can calculate the RCS scattering characteristics of complex aircraft efficiently.

关 键 词：概念设计 无人机 隐身 数值模拟 雷达散射截面积 

分 类 号：V221[航空宇航科学与技术—飞行器设计]