机翼后缘电磁散射特性分析  

Electromagnetic Scattering Characteristics Analysis of Trailing Edge of a Trapezoidal Wing

作　　者：张维仁 艾俊强 王健 ZHANG Weiren;AI Junqiang;WANG Jian(AVIC The First Aircraft Institute,Xi′an 710089,China)

机构地区：[1]航空工业第一飞机设计研究院,西安710089

出　　处：《电讯技术》2021年第2期242-247,共6页Telecommunication Engineering

摘　　要：采用多层快速多极子方法分析了梯形机翼后缘行波电磁散射和极化特性。针对机翼后缘半径和机翼展长等关键设计参数,建立了变参数模型并进行了多方案仿真分析,讨论了后缘半径和展长参数对机翼后缘行波在前向角域产生波峰的变化规律和散射量级。最后针对机翼后缘应用吸波材料的方案进行了计算分析,结果证明在机翼后缘应用吸波材料可以有效减缩后缘产生的行波散射。The electromagnetic scattering and polarization characteristics of the trailing edge of a trapezoidal wing are analyzed by using the multilevel fast multipole method(MLFMM).The radar cross section(RCS)behavior in the forward angular region related to the traveling wave is investigated by comparing various geometrical models which are established referring to the trailing edge radius and the wingspan.Two coating schemes with radar absorbing materials are calculated,and the result shows noticeable reduction in the traveling wave lobe.

关 键 词：机翼后缘 电磁散射 行波 多层快速多极子方法 

分 类 号：V218[航空宇航科学与技术—航空宇航推进理论与工程]