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Analysis of a spaceborne mirror on a main plate with isostatic mounts

机译:具有等静压座的主板上的星载反射镜分析

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The paper is aimed at obtaining the deformation results and optical aberration configurations of a spaceborne mirror made of ZERODUR~® glass on a main plate with three isostatic mounts for a space Cassegrain telescope. On the rear side of the main plate four screws will be locked to fix the focal plane assembly. The locking modes for the four screws will be simulated as push and pull motions in the Z axis for simplification. The finite element analysis and Zernike polynomial fitting are applied to the whole integrated optomechanical analysis process. Under the analysis, three isostatic mounts are bonded to the neutral plane of the mirror. The deformation results and optical aberration configurations under six types of push and pull motions as well as self-weight loading have been obtained. In addition, the comparison between the results under push and pull motions with 0.01 mm and 0.1 mm displacements in Z axis will be attained.
机译:本文旨在获得由ZERODUR〜®玻璃制成的星载反射镜在玻璃板上的变形结果和光学像差配置,该反射镜在用于三个Cassegrain望远镜的三个等静压支架上。在主板的背面,将锁定四个螺钉以固定焦平面组件。为简化起见,将四个螺钉的锁定模式模拟为Z轴上的推拉运动。将有限元分析和Zernike多项式拟合应用于整个集成的光机械分析过程。在分析下,将三个等静压座连接到反射镜的中性面。获得了六种推拉运动和自重载荷作用下的变形结果和光学像差配置。此外,将在Z轴上具有0.01 mm和0.1 mm位移的推拉运动下的结果之间进行比较。

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