Research Of Bearing And Supporting For Large-size Vehicle-borne Photoelectric Instrument

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".