| 鸭翼电磁散射特性分析与RCS减缩方法研究 |
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| 引用本文： | 李启鹏,王和平,孙珍,付伟.鸭翼电磁散射特性分析与RCS减缩方法研究[J].航空计算技术,2010,40(3). |
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| 作者姓名： | 李启鹏 王和平 孙珍 付伟 |
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| 作者单位： | 1. 西北工业大学航空学院,陕西,西安,710072
2. 中国矿业大学信电学院,江苏,徐州,221116 |
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| 摘 要： | 利用多层快速多极子方法计算鸭翼模型雷达散射截面(RCS),分析了鸭翼前缘后掠角和展长对鸭翼RCS值的影响,并根据计算结果拟合了随前缘后掠角和展长变化的鸭翼RCS曲线。建立飞机模型,计算了鸭翼不同偏转角时飞机的RCS值,研究鸭翼偏转对飞机头向RCS的影响。计算结果表明,鸭翼偏转会显著增大飞机头向RCS,影响飞机隐身性能。根据计算结果分析推导出鸭翼纵向操纵力矩、飞机头向RCS和鸭翼几何参数之间的函数关系,为鸭翼的隐身和气动优化设计提供了技术基础。对鸭翼上使用吸波材料的情况进行计算,结果验证了在鸭翼上涂敷吸波材料能够大幅降低飞机头向RCS。
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| 关 键 词： | 隐身技术 鸭翼 雷达散射截面 多层快速多极子方法 |
Research on Electromagnetic Scattering Characteristics and Radar Cross Section Reduction of Canard |
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| LI Qi-peng,WANG He-ping,SUN Zhen,FU Wei.Research on Electromagnetic Scattering Characteristics and Radar Cross Section Reduction of Canard[J].Aeronautical Computer Technique,2010,40(3). |
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| Authors: | LI Qi-peng WANG He-ping SUN Zhen FU Wei |
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| Institution: | 1 ( 1. School of Aeronautics; Northwestern Polytechnical University; Xi′an 710072; China; 2. School of Information Engineering and Electrical; China University of Mining and Technology; Xuzhou 221116; China); |
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| Abstract: | Multilevel Fast Multipole Algorithm is used to calculate canard s radar cross section ( RCS) . The impact of leading-edge sweep angle and span on canard′s RCS is analyzed and then canard′s RCS curves with leading-edge sweep angle and span are fitted by the calculation results. Aircraft model was built to calculate RCS of different canard deflection angle and research the influence of canard deflection angle on RCS. The calculation results show that canard deflection angle will increase head-on RCS of aircra... |
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| Keywords: | stealth technique canard radar cross section MLFMA |
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