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《Electronics Optics & Control》 2013-10
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Structure Optimization of Scanning Mirror in a Certain Type Airborne Photoelectrical Equipment

LIU Jian;YANG Yaoshan;ZHANG Honggang;LI Yundong;SUN Bei;Luoyang Institute of Electro-Optical Equipment,AVIC;  
The scanning mirror is widely used in airborne photoelectrical Equipment,which deformation has effect on the optical system's optical path and quality of imaging. On the other hand,as a rotational structure,the mirror should be as light as possible to reduce its moment of inertia while keeping its rigidity.In this paper,we optimized a reflected mirror of a certain type of airborne photoelectrical equipment with OptiStruct,Nx. Nastran and UG software,considering the overload and random vibration cases. We obtained a particular shape for two point supported scanning mirror. Compared with the original mirror,the optimized mirror has roughly the same rigidity,obvious lower weight and smaller moment of inertia. Based on the optimized mirror,high volume fraction SiC / Al composites( SiCp / Al) was used to further reduce the mirror's weight and improve its rigidity.
【CateGory Index】: TH74
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