| Based on a new designed project of the next generation Five-hundred MeterAperture Spherical Telescope (FAST) integrating optics and electromechanics, therequirements of FAST3level adjustment system are analyzed firstly in this paper, andso are the status and trends of motion control network. According to the high accuracytrajectory tracking requirements of feed point tracking system, the software andhardware of FAST AB axis platform are designed, and the control system of theStewart platform is implemented, both through the engineering practices. All these canbe summarized as the following three aspects.First, the advantages and disadvantages of the2level adjustment system areanalyzed. Based on such system, a new3level adjustment system is designed and adetailed introduction on its control strategy is given.Second, by deducing the angle distribution equation of AB axis platform, a betterway to solve AB axis’ rotation has been found out. At the same time, through usingMATLAB to simulate the angle distribution under several different situations, thetrajectory planning principle of Stewart platform is analyzed, the Stewart platformkinematic model is built, and two kinds of typical track under the Stewart platform areplanned. Its feasibility is also proved under the MATLAB data simulation.Third, according to the motion control requirements, the control system of FASTAB axis and the Stewart platform are designed in this paper, based on the technologyof SynqNet motion control. In the mean time, the software and hardware of FAST ABaxis platform and the control system of the Stewart platform are designed anddeveloped through experiments verifying the feasibility of the new control software. |
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