机载激光测照器发射光轴不稳定度仿真分析
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Simulation analysis of the instability of the emission axis of the airborne laser finder /illuminator
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    摘要:

    针对某型无人机机载激光测照器,分析了导致激光发射光轴产生偏离的原因,然后使用CAE软件ANSYSWorkbench分别对受安装力、热和振动等因素影响下的结构形变进行仿真,通过谐振腔光路和扩束光学相关公式计算得到激光发射光轴的最大综合偏转角,从而确定出激光测照器的发射光轴不稳定度,以验证设计是否满足相应可靠性指标要求。

    Abstract:

    Aiming at a certain type of UVA airborne laser finder/illuminator,this paper analyzes the reasons for the deviation of the laser emission axis,and then uses the CAE software ANSYS Workbench to simulate the structural deformation under the influence of structural forces、heat and vibration,Analyze and calculate the maximum comprehensive deflection angle of the laser emission axis through the calculation of the resonant cavity optical path and the beam expanding optics formula,so as to determine the instability of the emission axis of the laser finder/illuminator to verify whether the design meets the corresponding reliability index requirements.

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耿园园,徐光烁,谢桂娟,吕华昌,赵开瑞,褚凡忠.机载激光测照器发射光轴不稳定度仿真分析[J].激光与红外,2021,51(5):640~645
GENG Yuan-yuan, XU Guang-shuo, XIE Gui-juan, LV Hua-chang, ZHAO Kai-rui, CHU Fan-zhong. Simulation analysis of the instability of the emission axis of the airborne laser finder /illuminator[J]. LASER & INFRARED,2021,51(5):640~645

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  • 在线发布日期: 2021-06-30
  • 出版日期: 2021-05-20