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Integrated Opto-mechanical Optimization Analysis of Large-aperture Primary Mirror's support Position

机译：大口径主镜支撑位置的集成光机械优化分析

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Large mirror's support position plays a very important role in optical system's wave-front error. This paper took a Φ1.2m diameter primary mirror as an example and introduced the method of integrated opto-mechanical optimization analysis, then structure's parametric model in Proe, finite element's parametric model in Patran, structure analysis in Nastran and opto-mechanical coupling analysis in Sigfit were integrated as a fully automatic process in Isight by use of command streams and result documents produced by these softwares. After the process was established and verified, automatic gradient searches of primary mirror's optimal support position were conducted using optimizer embedded in Isight. The optimization objective is the minimum of surface error's RMS and the optimization variables are support positions. New searches can easily be conducted repeatedly after mirror's model is modified in the structure parameter document. Because of the search process is fully automatic, manpower and computing time are greatly saved. This example also provides a good reference for problems in opto-mechanical fields.
机译：大镜的支撑位置在光学系统的波前误差中起着非常重要的作用。本文以一个Φ1.2m直径的主镜为例，介绍了集成光机械优化分析的方法，然后介绍了Proe中的结构参数模型，Patran中的有限元参数模型，Nastran中的结构分析以及Inn中的光机耦合分析。通过使用命令流和这些软件生成的结果文档，将Sigfit集成为Isight中的全自动过程。建立并验证过程后，使用Isight中嵌入的优化程序对主镜的最佳支撑位置进行自动梯度搜索。优化目标是表面误差的RMS最小值，并且优化变量是支撑位置。在结构参数文档中修改镜像的模型后，可以轻松地重复进行新的搜索。由于搜索过程是全自动的，因此大大节省了人力和计算时间。该示例还为光机械领域的问题提供了很好的参考。

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