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Optimization of parameters structural design of lightweight reflector

WU Qing-bin, CHEN Shi-jin, DONG Shen(School of Mechanical Engineering, Harbin Institute of Technology, Harbin 150001, China)  
A parametric structure model has been established using FEA software ANSYS for an aspherical primary reflector with lightening sector holes. With some structural parameters having significant effect on mechanical properties of reflector, such as thickness of reflector, and location and size of sector hole, used as design variables, and feasible domains established in accordance with reflector machining and assembly processes for these design variables, an optimal design is done for the structure of a reflector using the zero-order optimization method provided in the Design Opt module of ANSYS. Mechanic analyses show that the optimized structure of the reflector is much lighter and stronger than the original design.
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