大气及地面红外辐射对高空飞机长波低发射率红外隐身效果的影响

黄伟; 吉洪湖; 卢浩浩

doi:10.13224/j.cnki.jasp.2016.02.013

大气及地面红外辐射对高空飞机长波低发射率红外隐身效果的影响

doi: 10.13224/j.cnki.jasp.2016.02.013

南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室, 南京 210016

基金项目:

航空科学基金(20132752039)

详细信息

作者简介:
黄伟(1983-),男,江苏淮安人,讲师,博士后,主要从事飞行器红外隐身研究.

中图分类号: V218;TN215
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出版历程
- 收稿日期: 2014-06-13
- 刊出日期: 2016-02-28

Impact of atmospheric and ground infrared radiation on infrared stealth effect of long-wave band low emissivity of high-flying aircraft

Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 计算分析了蒙皮反射的大气及地面红外辐射对高空飞机采用低发射率材料的红外隐身效果的影响.蒙皮温度采用恢复温度,红外辐射采用反向蒙特卡罗法计算.考虑了夏季和冬季两种典型大气和地面条件,亚声速巡航和超声速巡航两种飞行状态.结果表明:蒙皮对背景红外辐射的反射使得低发射率材料对飞机红外辐射强度的抑制效率降低1.5%~6%;考虑反射的背景红外辐射时,探测距离增加20%~70%;背景红外辐射对低速飞机的红外辐射影响较大,且夏季比冬季更明显;当飞行速度较低时,降低飞机上表面发射率,当飞行速度较高时,降低飞机全部表面的发射率,可获得更好的红外隐身效果.
- 背景红外辐射 /
- 低发射率 /
- 探测距离 /
- 红外辐射 /
- 红外隐身
Abstract: The impact of atmospheric and ground infrared radiation reflected by skin on the infrared stealth effect of low emissivity material of high-flying aircraft was computed and analyzed. The recovery temperature was applied to calculate the skin temperature, and the infrared radiation was computed by the reverse Monte Carlo method. Both summer and winter, the two typical climate conditions were considered in the computation. And both subsonic and supersonic cruise, the two typical flight conditions were also considered in the computation. Results show that,the reduction efficiency of low emissivity material on the aircraft infrared radiation is reduced 1.5%-6%;the detection distance of the detector is increased by 20%-70% considering the reflected infrared radiation of background infrared radiation; the infrared radiation of low-speed aircraft is more susceptible to the background infrared radiation, and the effect of summer is more obvious than winter; if reducing the emissivity of the upper surface of a low-speed aircraft, the total surface of a high-speed aircraft can get a better infrared stealth effect.
- background infrared radiation /
- low emissivity /
- detect distance /
- infrared radiation /
- infrared stealth

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