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刘战合,苗楠,王菁,等. 不同气动布局轰炸机电磁隐身性能对比研究[J]. 科学技术与工程, 2020, 20(23): 9640-9646.
LIU Zhan-he,MIAO Nan,WANG Jing,et al.Comparative Study on Stealth Performance of Bombers with Different Aerodynamic Layouts[J].Science Technology and Engineering,2020,20(23):9640-9646.
不同气动布局轰炸机电磁隐身性能对比研究
Comparative Study on Stealth Performance of Bombers with Different Aerodynamic Layouts
投稿时间:2020-01-29  修订日期:2020-03-04
DOI:
中文关键词:  电磁  隐身  轰炸机  气动布局  RCS
英文关键词:electromagnetic  stealth  bomber  aerodynamic layout  Radar Cross Section(RCS)
基金项目:国家自然科学基金(11702255);河南省科技攻关计划(182102210444);郑州航空工业管理学院青年骨干教师资助计划(2017-12)第一作者:刘战合(1977-),男,汉族,陕西富平,博士,副教授。研究方向:飞行器设计,计算电磁学。E-mail:nwpulzh@163.com。 (1.School of Aeronautic Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, China;
              
作者单位
刘战合 郑州航空工业管理学院 航空工程学院
苗楠 郑州航空工业管理学院 航空工程学院
王菁 郑州航空工业管理学院 航空工程学院
郭乐 西北工业大学 航空学院
张曼 郑州航空工业管理学院 航空工程学院
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中文摘要:
      轰炸机是重要的空中武装力量,为研究其电磁隐身性能,以美军B-52、B-1B、B-2及概念机B-3为对象,分别建立了不同气动布局的轰炸机电磁模型A、B、C、D,基于物理光学法计算了不同状态的RCS(Radar Cross Section)曲线及各角域均值。结果表明,RCS曲线的分布特征与轰炸机气动布局、重要结构部件相关,同状态下A、B、C、D曲线依次向内收缩;频率增加时,布局A的RCS曲线变化较小而D曲线内陷,前向角域上布局B、C、D的RCS均值逐渐减小,后向角域上布局C、D逐渐减小;俯仰角对布局A散射曲线影响较大,其前后向峰值减小变窄,布局A的RCS均值较高,B、C、D较低,具有较好隐身性;布局A隐身性较差,B有提高,C、D具有优秀隐身性能。
英文摘要:
      The bomber is one type of the important air force. In order to study its electromagnetic stealth performance, the electromagnetic models named with A, B C and D were established respectively based on the US military B-52, B-1B, B-2, and concept aircraft B-3. And their RCS (Radar Cross Section) curves and mean values in different angular domains with different status were calculated by Physical Optics method. The results show that the distribution characteristics of RCS curves are related to the aerodynamic layout and important structural components of bombers. The RCS curves of A, B, C, and D with same state shrink inward in sequence. When the frequency increases, the RCS curve of A changes little and the curve of D towards inside, and the RCS mean values in nose direction of B, C, and D gradually decrease, and the values of C and D in rear angular domain gradually decrease. The pitch angle has a greater influence on the scattering curve oft A, and its peak values in nose and rear direction decrease, and its peak become narrower, the RCS mean values of A are higher, and B, C, and D’s values are smaller which means they possess better stealth performance. In summary, A has poor stealth, B possess better stealth, and C, D have excellent stealth performance.
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