2 m主镜主动支撑优化设计

Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering(2013)

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Abstract
  结合某空间光学系统的任务需求,对其2 m口径主镜的支撑难点作了详细的论述。为了使主镜达到光学设计所要求的面形精度,运用了结构有限元法和优化设计方法对主镜进行了支撑位置优化;并分别针对主镜轴向1 g重力载荷、轴向1 g重力载荷耦合1益均匀温升两种工况,以主镜镜面RMS为目标函数、力驱动器驱动力为优化变量进行了多参数优化。通过优化获得了最佳的驱动力组合,镜面RMS分别达到19 nm、43 nm。该方法具有一定的应用价值。
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Key words
Active optics,Finite element,Optimization design
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