气动热环境下高速飞行器光学头罩光传输分析  

Analysis of Optical Transmission Through High Speed Aircraft Optical Dome in Aerodynamic Thermal Environment

作　　者：范志刚[1] 肖昊苏[1] 李辉[1] 潘国庆[2] 李福巍[2] 

机构地区：[1]哈尔滨工业大学空间光学工程研究中心,哈尔滨150001 [2]中国空空导弹研究院,河南洛阳471009

出　　处：《航空兵器》2010年第5期59-61,64,共4页Aero Weaponry

基　　金：航空科学基金资助项目(20080177003)

摘　　要：气动热环境下,光学头罩由于受到气动热和热应力的作用,产生形变且其光学性质发生改变,进而影响到光学头罩内红外辐射光线的传输,使得头罩光学系统成像质量下降,最终将影响高速飞行器的制导精度。以红外成像在高速飞行器上的应用需求为背景,对头罩内光传输进行了数值仿真,得到了头罩光学系统在气动热环境中各项光学评价函数。The shape and optical properties of the optical dome are changed because of aerodynamic heating and thermal stress in the aerodynamic thermal environment. The transmission of infrared radiation through the optical dome is affected, which decreases the image quality of the dome optical system and finally impacts the guidance accuracy of high speed aircrafts. According to the requirements of IR imaging technique applied in high speed aircrafts, the optical transmission through the optical dome is simulated numerically, and the optical evaluation functions of the dome optical system in the aerodynamic environment are presented.

关 键 词：气动光学 光学头罩 光线追迹 气动热 

分 类 号：TJ760[兵器科学与技术—武器系统与运用工程]