空间太阳望远镜中摆镜支架装夹变形的研究  

The Distortion in Fixing the Swing Mirror Bracket of the Space Solar Telescope

作　　者：寿建军[1] 关富玲[1] 孙亚良 

机构地区：[1]浙江大学空间结构研究中心,杭州310027 [2]绍兴市特种设备检测院,浙江绍兴312001

出　　处：《科技通报》2007年第6期902-907,925,共7页Bulletin of Science and Technology

基　　金：国家973计划资助编号(51329010302)

摘　　要：空间太阳望远镜上的自适应光学摆镜要求具有高形面精度、高机械谐振频率,由于机械接口原因,只有通过连接支架才能装夹于摆镜平台。该支架结构直接影响摆镜的形面精度以及整个系统的机械谐振频率。运用接触非线性有限元技术,对四种不同结构的支架在螺栓装夹力作用下的变形进行详细计算,分析螺栓压力、螺栓压力差、重力以及螺栓垫片材料等因素对不同结构支架变形影响,为摆镜的装夹实验提供理论依据。The swing mirror of the Space Solar Telescope requires high surface precision and resonance frequency and it can only be fixed on the Mirror flat using connecting bracket for the sake of mechanical interface. This bracket has a direct affect on the surface precision and the resonance frequency of the whole system. In this paper, the distortion of four different structure brackets under the impact of bolts is given using the Contact Nonlinear Finite Element, analyzing the distortion degree caused by the bolts pressure, bolt pressure difference, gravity and gasket material. It provides theoretical data for the experiment of mirror fixing.

关 键 词：摆镜支架 接触非线性 装夹 

分 类 号：V447[航空宇航科学与技术—飞行器设计]