Topologic Optimization Design of Telescope Main Frame Based on Optistruct
MA Zhao-cai CHEN Hua LIU Wei (Changchun Institute of Optics,Fine Mechanics and Physics, Chinese Academy of Sciences,Changchun 130033,China) (Graduate School of the Chinese Academy of Sciences,Beijing 100039,China)
In order to reduce the weight of an aerial telescope main structure, a topologic optimization design method of the aerial telescope main frame was presented. The telescope main frame with overloaded gravity was optimized based on topologic theory. The topologic optimization model takes the whole frame as variation, takes volume fraction and natural frequency as computing constrains, takes the maximal structure stiffness as the objective function. The resulted model was analyzed with MSC.PATRAN/NASTRAN software. The result indicated that the structure’s total weight was reduced 77%, the structure’s static stiffness increased, the dynamic stiffness was suitable and the optical imaging condition was improved.
【CateGory Index】： TH743