双立尾对战斗机隐身特性的数值模拟

岳奎志; 孙聪; 姬金祖

双立尾对战斗机隐身特性的数值模拟

北京航空航天大学航空科学与工程学院, 北京 100191

基金项目: 国家973基础研究资助项目（61320）；总装“十二五”预研项目

详细信息

中图分类号: V221
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- 文章访问数: 1891
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- 被引次数: 0
出版历程
- 收稿日期: 2013-04-08
- 网络出版日期: 2014-02-20

Numerical simulation on the stealth characteristics of twin-vertical-tails for fighter

School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics,Beijing 100191, China

摘要

摘要: 为了降低战斗机的雷达散射截面（RCS，Radar Cross Section）特性，研究了双立尾外倾对战斗机RCS特性的影响.对战斗机的三维数字样机进行网格划分，基于物理光学法数值模拟出双立尾向两侧对等偏转对三翼面战斗机的头向、侧向和尾向的RCS特性的影响，并对战斗机的缩比实体样机进行电磁测试，证明了方法的可行性和数值模拟的准确性.数值模拟结果表明，当双立尾从0°向外偏转10°时，三翼面战斗机侧向RCS值缩减至原来的 9.8%，而头向和尾向的RCS值变化幅度较小.
- 双立尾 /
- 隐身 /
- 飞机总体设计 /
- 物理光学法
Abstract: In order to reduce the radar cross section (RCS) of fighter, the twin-vertical-tails effect on the RCS character of fighter was studied. The 3D digital fighter prototype was meshed. The RCS character effect of head, side and tail in three-surface fighter when twin-vertical-tails had a same deflection to two direction based on physical optics method was simulated. The electromagnetic testing on prototype fighter shrunk on a certain scale was made. The practicality of the physical optics method and the accuracy of numerical simulation were verified. The simulation results show that the side RCS of three-surface fighter reduced to 9.8% of what it had been, but the head and tail RCS had a little change when twin vertical fins deflected from 0° to 10°.
- twin-vertical-tails /
- stealth /
- aircraft conceptual design /
- physical optics method

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参考文献(17)

[1]	Sheta E F.Alleviation of vertical tail buffeting of F/A-18 aircraft[J].Journal of Aircraft, 2004, 41(2):322-330
[2]	李劲杰, 杨青, 杨永年.边条翼布局双垂尾抖振的数值模拟[J].空气动力学学报, 2007, 25(2):205-210 Li Jinjie, Yang Qing, Yang Yongnian.The numerical investigation of twin-vertical tail buffet of strake-wing configuration[J].Acta Aerodynamica Sinica, 2007, 25(2):205-210(in Chinese)
[3]	苏浩秦, 邓建华.含有V 型垂尾飞机的舵面配置[J].航空学报, 2004, 25(2):165-167 Su Haoqin, Deng Jianhua.Effect or deployment for the airplane with V shape vertical tail[J].Acta Aeronautica et Astronautica Sinica, 2004, 25(2):165-167(in Chinese)
[4]	郑遂, 李桂生, 蔡广平, 等.双垂尾对边条翼布局大迎角升力影响机理研究[J].空气动力学学报, 2011, 29(2):248-251 Zheng Sui, Li Guisheng, Cai Guangping, et al.A study on the effects of the twin-tails on the lift of a LEX-wing configuration at high AOA[J].Acta Aerodynamica Sinica, 2011, 29(2):248-251(in Chinese)
[5]	李劲杰, 杨青, 李建英.双垂尾抖振实验研究[J].西北工业大学学报, 2005, 23(4):444-447 Li Jinjie, Yang Qing, Li Jianying.Wind tunnel investigation of twin-vertical-tails buffet[J].Journal of Northwestern Polytechnical University, 2005, 23(4):444-447(in Chinese)
[6]	Krist S L, Washburn A E.A computation and experimental investigation of a delta wing with vertical tails[R].AIAA93-3009, 1993
[7]	Kandil O, Sheta E F, Massey S.Twin tail/delta wing configuration buffet due to unsteady vortex breakdown flow[R].AIAA96-2517-CP, 1996
[8]	Liu Hu, Wu Zhe, Wang Ganglin.Implementation of a sketch based approach to conceptual aircraft design synthesis and modeling[J].Chinese Journal of Aeronautics, 2004, 17(4):207-214
[9]	王允良, 李为吉.物理规划方法及其在飞机方案设计中的应用[J].航空学报, 2005, 26(5):562-566 Wang Yunliang, Li Weiji.Physical programming and its application in aircraft concept design[J].Acta Aeronautica et Astronautica Sinica, 2005, 26(5):562-566(in Chinese)
[10]	黄爱凤, 余雄庆, 姚卫星.翼面隐身结构电磁散射特性的数值模拟[J].航空学报, 2005, 26(4):422-425 Huang Aifeng, Yu Xiongqing, Yao Weixing.Numerical simulation of electromagnetic scattering for wing structures with low observability[J].Acta Aeronautica et Astronautica Sinica, 2005, 26(4):422-425(in Chinese)
[11]	白振东, 刘虎, 武哲.低可探测机身参数化造型与优化[J].北京航空航天大学学报, 2007, 33(12):1391-1394 Bai Zhendong, Liu Hu, Wu Zhe.Parametric modeling and optimization of low observability fuselage in aircraft conceptual design[J].Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(12):1391-1394(in Chinese)
[12]	高旭, 刘战合.缝隙目标电磁散射特性试验[J].航空学报, 2008, 29(6):1497-1501 Gao Xu, Liu Zhanhe.Experimentation on scattering characteristics of serrate gap[J].Acta Aeronautica et Astronautica Sinica, 2008, 29(6):1497-1501(in Chinese)
[13]	姬金祖, 刘战合.基于面元分组的电磁遮挡算法及其优化[J].北京航空航天大学学报, 2009, 35(4):453-456 Ji Jinzu, Liu Zhanhe.Electromagnetic occultation algorithm bas-ed on facets grouping and optimization[J].Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(4):453- 456(in Chinese)
[14]	黄敏杰, 李葳, 武哲.邻域辅助径迹法提高射线追踪效率[J].北京航空航天大学学报, 2007, 33(3):298-301 Huang Minjie, Li Wei, Wu Zhe.Neighborhood-aided trace method in improving efficiency of ray tracing[J].Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(3): 298- 301(in Chinese)
[15]	包晓翔, 张云飞, 杜晓松.通用直升机雷达散射特性及RCS减缩[J].北京航空航天大学学报, 2013, 39(6):745-750 Bao Xiaoxiang, Zhang Yunfei, Du Xiaosong.Radar scattering characteristics and RCS reduction of utility helicopter[J].Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(6):745-750(in Chinese)
[16]	何国瑜, 卢才成, 洪家才.电磁散射的计算和测量[M].北京:北京航空航天大学出版社, 2006:292-293 He Guoyu, Lu Caicheng, Hong Jiacai.Calculation and measurement of electromagnetic scattering[M].Beijing:Beihang University Press, 2006:292-293(in Chinese)
[17]	罗明强, 魏城龙, 刘虎．基于三维参数化模型构建的飞机重量重心快速估算[J]．航空学报, 2013, 34(3):566-573 Luo Mingqiang, Wei Chenglong, Liu Hu.Rapid estimation for aircraft weight and center of gravity based on 3-D parametric modeling[J].Acta Aeronautica et Astronautica Sinica, 2013, 34(3): 566-573(in Chinese)