Environmental worthiness design of shipborne electro-optical system
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摘要: 为了提高舰载光电系统的环境适应性，在分析舰船环境对光电系统影响和危害的基础上，开展环境适应性设计的研究，提出对各组成设备进行加固优化与隔离防护，从材料选用、光学系统设计、结构设计和三防工艺技术等方面，给出了提高抗腐蚀性能、耐温度变化、抗冲振能力具体的设计方法和解决措施。产品试验和使用效果表明：采用耐蚀材料、结构优化和三防措施改善了设备的防护能力；采用复合材料隔热罩最大降低了太阳辐射附加温升8.1 ℃，改善了光电传感器的工作环境；采用机械被动补偿措施使在-40 ℃～+60 ℃温度范围内最大弥散斑均方差半径小于探测器像元间距，保证了红外热像仪的成像质量；方位轴系加装推力轴承提高了径向刚度25.9%，实现了冲振条件下系统稳定工作。Abstract: In order to improve the environmental worthiness of the shipborne electro-optical system, we analyzed the effect and hazard of the ship environment on the electrooptical system, conducted the research of environmental worthiness design, and suggested reinforcing and protecting all equipments. From the aspects such as material selection, optical system design,structure design and three-proofing, we gave some methods and measures for ameliorating the properties of anticorrosion, resistant to temperature change,shock and vibration. Through the experimentation and application in these years，the results show that we improve the protection ability of the equipment by using the material of good corrosion resistance,optimizing structure,and taking threeproofing measures;we reduce the annexable temperature rise whose maximum is 8.1 ℃ in the sun and improve the work environment of the electro-optical sensors；we ensure the infrared imaging quality because the maximum dispersion root-mean-square(RMS) radius is less than the pitch of the detector in -40 ℃～+60 ℃ with the mechanical compensation method;we improve the radial rigidity more than 25.9% and realize the work stabilization of the system by installing the thrust bearing．
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