飞翼布局飞机舵面偏转对RCS的影响研究  

Research on the Influence of the Control Surface Deflection on RCS of Flying Wing Aircraft

作　　者：李艺海 何太 袁广田[1] LI Yihai;HE Tai;YUAN Guangtian

机构地区：[1]中国飞行试验研究院飞机所,陕西西安710059

出　　处：《科技创新与应用》2020年第25期5-8,共4页Technology Innovation and Application

摘　　要：针对舵面偏转后飞翼布局的雷达截面积(RCS)特性的变化,应用高精度的快速多极子算法(MLFMM)对不同组合舵偏对典型飞翼布局无人机的RCS的影响进行量化研究,研究表明舵面偏转会对低RCS的隐身无人机RCS的峰值、峰值宽度和均值造成一定的影响;在隐蔽突防过程中,应避免使用类似开裂式组合方向舵的控制方式;也应尽量避免偏转后的不同舵面在同一个照射方向形成夹角,以避免飞机RCS的波峰、波峰宽度及RCS均值显著增加。For the change of Radar Cross Section(RCS)of flying wing when its control surface is rotated,a highly accurate Multi Level Fast Multipole Method(MLFMM)was used to study the influence of different combinations of surface deflection on RCS of a typical flying wing aircraft.The results show that surface deflection has a certain effect on the RCS peak of low RCS stealth aircraft,as well as the peak width and average.In the process of stealthy penetration,the use of split-drag-rudder should be avoided,and different surfaces forming an angle in the same radar exposure direction should be avoided,so as not to lead to a significant increase in RCS peak,peak width and RCS mean of the plane.

关 键 词：飞翼布局 RCS 控制舵面 隐蔽突防 

分 类 号：V218[航空宇航科学与技术—航空宇航推进理论与工程]