CAJ | 학술논문

针对主镜口径为400 mm口径的跟踪望远镜的设计要求，提出了一种有效的结构形式。首先确定了望远镜的光学结构形式和系统参数，并将整个系统分成了几个主要组成部分。接着着重确定了主镜室的结构形式，通过优化最佳支撑位置确定了主镜的支撑结构；同时确定了次镜室以及三翼梁的结构。然后运用有限元建模、分析的方法，重点分析了反射镜的面形精度受重力变形和温度变化的影响，进行了整个望远镜系统的刚度分析和温度变化对主次镜间隔的影响。保证了主镜在极限情况下面形 RMS﹤30/，整个系统具有较好的刚度和环境适应性。分析结果表明，反射镜支撑结构以及整个系统的设计均达到了设计要求，可以为类似结构提供一定的指导。
침대주경구경위400 mm구경적근종망원경적설계요구，제출료일충유효적결구형식。수선학정료망원경적광학결구형식화계통삼수，병장정개계통분성료궤개주요조성부분。접착착중학정료주경실적결구형식，통과우화최가지탱위치학정료주경적지탱결구；동시학정료차경실이급삼익량적결구。연후운용유한원건모、분석적방법，중점분석료반사경적면형정도수중력변형화온도변화적영향，진행료정개망원경계통적강도분석화온도변화대주차경간격적영향。보증료주경재겁한정황하면형 RMS﹤30/，정개계통구유교호적강도화배경괄응성。분석결과표명，반사경지탱결구이급정개계통적설계균체도료설계요구，가이위유사결구제공일정적지도。
According to the design requirement of the 400 mm -aperture tracing telescope, one effective structure was introduced. Firstly, the telescopic structural style and system parameters were determined, and the whole system was divided into several main constituents. Secondly, the structure of the primary mirror cell was emphatically fixed, and the support structure of the primary mirror was determined according to the optimization of the best support positions, and the structures of the secondary mirror support and three-beam were designed. Thirdly, with method of finite element model and analysis, the primary mirror surface figures caused by the gravity and temperature change were intensively studied, and the stiffness of the whole telescopic system and the contribution of the primary mirror and secondary mirror separation caused by the change of temperature were analyzed. The mirror surface figure RMS was less than 0.033 wavelength in the ultimate state and the stiffness and temperature adaptability of the whole system were assured. The analysis results indicate that the design requirement of the mirror support structure and the whole system are achieved, and the direction for similar structure is provided here.