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运用有限元方法对一种超薄反射镜的多个支撑方案进行分析计算,其中包括支撑点数量及排布方式的合理选择、支撑组件的优化设计。分析结果表明:该超薄反射镜在自重下的面形精度通过多点调节能够满足要求,预示了将该支撑技术应用于超薄反射镜具有可行性,并为超薄反射镜结构在面形控制实验中实施主动调节提供了数值依据。
The finite element method is used to analyze and calculate the multiple support schemes of an ultra-thin mirror, including the reasonable choice of the number of support points and the arrangement of supporting elements, and the optimal design of support components. The analysis results show that the surface shape accuracy of the ultra-thin mirror under self-weight can meet the requirements through multi-point adjustment, which indicates the feasibility of applying the support technology to the ultra-thin mirror, Control experiments to provide an active adjustment to provide a numerical basis.