非线性发射过载对激光引信光学接收系统的影响

激光引信包含精密光学系统，其中光学接收系统占重要地位，在常规弹药引信过程的应用中，高发射过载环境对系统弱回波聚焦质量造成严重影响，系统工作可靠性无法保证。提出接收聚焦透镜与窄带滤波片一体化方案，设计出一种新型缓冲结构接收系统光学，应用有限元分析软件ANSYS建立传统激光接收系统以及新型结构动力学模型，对接收聚焦透镜进行非线性动力学仿真以及ZEMAX光学仿真；最后进行空气炮冲击实验，结果表明:在经历70 000 g冲击加速度后，新型光学系统缓冲结构可有效缓解接收聚焦透镜塑性变形，提高脉冲激光束聚焦整形质量，激光回波能量显著增强。为常规武器激光引信接收光学系统抗高过载设计提供了一种新的方法和理论依据。

Effect of on nonlinear emission overload laser fuze optical receiving system

The precision optical system is included in laser fuze, among them, an important role is played by the optical receiver system, when it is used in conventional ammunition, high emission overload environment has a serious impact on the quality of weak echo focusing, system reliability can not be guaranteed. The receiver focusing lens and integrated program of narrow band filters are proposed, a new type of receiver system optical buffer structure was designed, a mathematical model of tradition receiver system and a mathematical model of new structure were established by using finite element analysis software ANSYS, nonlinear dynamics simulation and optical simulation were did by ZEMAX to the receive focusing lens; finally, the air gun impact experiment was did. The results show that in the experience of the 70 000 g impact acceleration, buffer structure of the new optical system can alleviate the receiver focusing lens plastic deformation effectively, the quality of pulse laser beam focusing plastic can be improved, the laser echo energy is enhanced significantly. A new method and theoretical basis are provided to the anti-overload design for conventional weapons of laser fuse receiving optical system.