中国光学（中英文）2025，Vol.18Issue(3)：460-466,7.DOI:10.37188/CO.2024-0172
460mm口径单轴支撑碳化硅主镜的优化设计
Optimized design of single-axis supported SiC mirror with aperture of 460 mm
摘要
Abstract
In order to simplify the support method of the mirror of a ground-based telescope and ensure the imaging quality and accuracy of the telescope,the optimization design of a uniaxial supported SiC mirror with 460 mm aperture was studied.First,a uniaxial support scheme for materials with similar linear expan-sion coefficients and a fan-shaped mirror back structure were determined.Advanced SiC sintering techno-logy was used to prepare anisotropic structures according to the support structure and the material character-istics.Combined with optimization design theory,the mirror was designed to be lightweight while meeting the required accuracy.The optimized mirror weighs only 4.82 kg,and the RMS of the horizontal simulation analysis of the mirror is λ/51.4.After actual engineering verification,the accuracy detection results of the ho-rizontal state under the mirror support are found to be better than λ/42.The lightweight effect is significant and meets the requirements of practical use.This research provides a theoretical foundation and technical re-serve for engineering projects.关键词
碳化硅主镜/轻量化/有限元分析/优化设计Key words
SiC mirror/lightweight/finite element analysis/optimization分类
机械工程引用本文复制引用
王涛,汪向阳,赵新宇,刘瑞起,曹永刚..460mm口径单轴支撑碳化硅主镜的优化设计[J].中国光学（中英文）,2025,18(3):460-466,7.基金项目
国家自然科学基金(No.62105330)Supported by National Science Foundation of China(No.62105330) （No.62105330）
