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Simulation on flexible feed support system of five-hundred-meter aperture spherical radio telescope

LI Hui,SUN Jinghai,ZHU Wenbai,PAN Gaofeng(National Astronomical Observatories,Chinese Academy of Sciences,Beijing 20012,China)  
To optimize the design of Five-hundred-meter Aperture Spherical radio Telescope(FAST),the flexible feed support system is simulated by 1:1 virtual prototype.The whole control architecture and control algorithm are designed and the virtual prototype is built.The kinematics,dynamics and control accuracy of the system under the disturbances are analyzed.The main simulation includes the dynamics analysis on cabin-cable suspension system and the control simulation analysis on other mechanisms and units.The former is implemented by finite element method,and the latter is implemented by multibody system dynamics mechatronic control.The better design optimization scheme can be achieved by the control accuracy evaluation of feed position,the blindness and cost of hardware design and experiment can be reduced,and the research process can be shorten.
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