Design and geometrical tolerance detection of center section of large-aperture telescope

doi:10.37188/OPE.20223023.3039

CIOMP OpenIR

	Design and geometrical tolerance detection of center section of large-aperture telescope
	Z. Wang; T. Chen; Y. Cao and C. Zhou
	2022
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	30 期号:23 页码:3039-3044
摘要	To satisfy the requirements of high stiffness and low inertia of the center section of a large aperture telescopea lightweight center section is designed. Furtherbecause the traditional method cannot detect the geometric tolerance of the center sectionan optical detection method based on an autocollimator and laser tracker is proposed. According to the requirements of the overall structure of the telescopethe size range of the center section is determinedand the transmission path of the force is analyzed. The topology optimization analysis and structure design are carried out using the variable density method to minimize strain energy. Based on the angle measurement principle of the autocollimatorthe reflecting mirror is placed on the face of the center section hole to measure the parallelism error of the face on both sides. Based on the position measurement principle of the laser trackera high-precision turntable is used to find the central point of the center section hole. Thenthe central point coordinates of holes on both sides are measuredand the coaxiality error is measured. Compared with the center section designed by traditional meansthe mass of the center section designed under the guidance of topology optimization is reduced by 21. 5%and the static stiffness is increased by 14. 3%. The parallelism error of the faces of the holes on both sides of the center section detected by the optical method is 0. 016 mm and the concentric error of the holes on both sides is 0. 03 mm. The center section designed by topology optimization has obvious advantages in improving stiffness and reducing inertia. The detection of geometric tolerance of the center section can be realized by using the proposed optical detection methodwhich solves the detection problems in processing. 2022 Chinese Academy of Sciences. All rights reserved.
DOI	10.37188/OPE.20223023.3039
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收录类别	ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66524
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Z. Wang,T. Chen,Y. Cao and C. Zhou. Design and geometrical tolerance detection of center section of large-aperture telescope[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2022,30(23):3039-3044.
APA	Z. Wang,T. Chen,&Y. Cao and C. Zhou.(2022).Design and geometrical tolerance detection of center section of large-aperture telescope.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,30(23),3039-3044.
MLA	Z. Wang,et al."Design and geometrical tolerance detection of center section of large-aperture telescope".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 30.23(2022):3039-3044.

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