柔性侧支撑在大型望远镜中的应用综述

摘要

The current development trend of the large aperture telescope is expounded.In order to ensure the mirror surface accuracy,the flexure support is the essential technology.From the factors that thermal and gravity coupling load conditions affect the mirror surface figure,the necessity of flexible technology in the telescope support system is explained.The advantages of flexible support are summarized comparing with rigid support,and several principles are given when the flexible support is designed.Lateral flexible support structures including three points tangent support, edge support,bipod flexible support are introduced,and these support structures in the application of several large tel-escopes are introduced.Application fields and development prospect of flexible support technology are summarized, which offer some references for the further development of the flexible support technology.%阐述了目前大型望远镜口径的发展趋势，为保证镜面面形精度的前提下得出了柔性支撑是必不可少的环节这一现状。从力热耦合工况影响镜面面形的因素说明柔性技术在望远镜支撑系统中的必要性。概括了柔性支撑较于刚性支撑所具备的优势并且给出了柔性支撑设计时要遵循的几个原则。以柔性侧支撑为主介绍了三点切向支撑、边缘支撑、两脚架柔性支撑三种径向支撑形式，结合这三种支撑思想介绍国内外具有代表意义的几种大型望远镜中的应用实例。总结柔性支撑技术的应用领域及发展前景。希望能对柔性支撑技术的进一步发展提供一些借鉴意义。