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大型光电设备载车平台承载及支撑技术研究

Research of Bearing and Supporting for Large-size Vehicle-borne Photoelectric Instrument

【作者】 姜伟伟

【导师】 高云国;

【作者基本信息】 中国科学院研究生院(长春光学精密机械与物理研究所) , 机械制造及自动化, 2011, 博士

【摘要】 随着现代国防装备发展,陆基光电设备由地基固定式发展到车载式,车载式光电设备以其高机动性、灵活性特点成为世界各国优先发展的对象,载车平台为车上光电设备的工作基础,如载车平台稳定性较差则影响车上设备的工作效果。本文针对载车平台上具有长距离光路对准设备及载车支撑稳定性不如地基固定式的特点,开展载车平台承载及支撑技术研究,主要工作如下:1、对载车平台上仪器位置分布作了详细的论述,提出确定仪器位置三原则:精密仪器设备优先安置原则、基于车架小变形理论仪器安置原则、基于重心法的仪器安置原则,为确定车上设备位置提供了理论依据。2、为增强车载设备工作时的稳定性,设计了载车平台支撑系统、基于CAN总线的分布式调平控制系统。3、对载车平台进行稳定性实验测试。载车平台支撑变形重复性实验表明:多次重复支撑下自准直仪方位角变化0.4"、俯仰角变化0.2",可保证车上长光路对准设备有较高的对准重复性。载车平台支撑稳定性及载车发电机振动传递实验表明:载车平台在干扰下倾角变化大,倾角变化量为地基固定式10倍以上。4、对实时消除载车平台倾斜引入测角误差方法进行研究。采用基于CAN总线的自动调平系统对载车平台实时调平,实现调平精度:车载发电机不工作时优于19.0",工作时优于25.5"。实时消除跟踪架基准面倾斜引入测角误差实验表明:可将基准面倾角控制在25.7"之内。

【Abstract】 With the development of national defense equipment, Land-based photoelectric instrument has been from ground-fixed to vehicle-borne. Because of the maneuverability and flexibility, vehicle-borne photoelectric instrument becomes the research hotspot of many nations. Carrier platform is work foundation of vehicle-borne photoelectric instrument, if the stability of carrier platform worse, it will influence the working effect of photoelectric instrument .There are long beam aim at one target and supporting stability of carrier platform worse than ground-fixed , with the particular project my work in this dissertation are as follows:1, Discussed how to decide the position of equipment on the vehicle in detail, and put forward three rules: priority make sure location of precision equipment, based on smaller distort; the regulation of laying up the equipment based on barycenter.2, Designed the mechanical supporting and the distributed leveling control system based on CAN-bus in order to boost stability when the photoelectric instrument working.3, Carry out the stability experiment on the carrier platform. The repeat distortion of the carrier platform indicates that azimuth angle changed under 0.4", elevation angle changed under 0.2" can make sure long beam aims at one target. The experiment for stability of carrier platform supported and generator librate indicates that obliquity changed at large-scale, stability worse than ground-fixed. 4, Researched on measure error brooght by carrier platform incline. According to the real-time leveling control system based on CAN-bus, the experiment indicates that the obliquity of carrier platform can be controlled under 19.0" without the generator, under 25.5" with the generator work. The experiment of real-time aviod datum-plane incline bringed measure error indicates that the angle of datum-plane incline under 25.7".

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