Kinematic coupling design and analysis for 30 m telescope tertiary mirror system

被引：0

作者：

Zhao, Hongchao ^{[1
]}

Zhang, Jingxu ^{[1
]}

Yang, Fei ^{[1
]}

Guo, Peng ^{[1
]}

机构：

[1] Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, Jilin

来源：

Guangxue Xuebao/Acta Optica Sinica | 2015年 / 35卷 / 03期

关键词：

Finite element method; Kinematic coupling; Mirror; Optical design; Positioning accuracy repeatability; surface figure;

D O I：

10.3788/AOS201535.0312003

中图分类号：

学科分类号：

摘要：

In order to avoid the introduction of aberrations which make the image quality degrade, both alignment and shift of the optical components are strictly guaranteed in the optical system. The kinematic interface has a wonderful performance in repeatability and low level of contact stress. So it is widely used in optical system. The thirty meter telescope (TMT) is an Ritchey-Chirtien (R-C) optical system. The tertiary mirror is employed to bend the light to the instruments. According to the requirement of the accuracy assembly this mirror is frequently removed to clean and recoat. So a kinematic interface is designed to meet the requirement. The study on the kinematic principle in positioning the rigid body is introduced. Then a preliminary design is constructed according with the mechanical principles. Thus the Hertz contact theory and IBM wear theory are employed to check the contact stress and the wear situation. At last, a positioning accuracy simulation is carried out by the Monte-Carlo method. In addition, a simulation is carried out to analyze the support performance in Ansys software. And some parameters is optimized. The results show that both the contact stress and the wear situation can meet the requirements. In addition, the repeatability in three directions and the support performance are achieved. ©, 2015, Chinese Optical Society. All right reserved.

引用

页数：8

共 10 条

[1]

Design requirements document for tertiary mirror system (M3S)

[2]

Nelson J., Sanders G.H., The status of the thirty meter telescope project, SPIE International Society for Optics and Photonics, 7012, (2008)

[3]

Wang F., Yang F., Zhao H., Et al., Progress in TMT M3 system, Chinese Optics, 10, 6, pp. 643-651, (2013)

[4]

Schouten C.H., Rosielle P., Schellekens P.H.J., Design of a kinematic coupling for precision applications, Precis Eng, 20, 1, pp. 46-52, (1997)

[5]

Hale L.C., Slocum A.H., Optimal design techniques for kinematic couplings, Precis Eng, 25, 2, pp. 114-127, (2001)

[6]

Hart A.J., Slocum A., Willoughby P., Kinematic coupling interchangeability, Precis Eng, 28, 1, pp. 1-15, (2004)

[7]

Chang L., Zhao B., Qiu Y., Et al., Optical system design of polarization imaging spectrometer for ground-based astronomical observation, Acta Optica Sinica, 33, s2, (2013)

[8]

Yu X., Gong Y., Ni M., Et al., Optical surface figure of lens under kinematic mount apparatus and its reproducibility, Optics and Precision Engineering, 21, 8, pp. 2000-2007, (2013)

[9]

Huang J., Liu C., Xie Y., Et al., Design of 2-D reflection mirror gimbal for lunar based astronomy optical telescope, Optics and Precision Engineering, 22, 8, pp. 2173-2179, (2014)

[10]

Tang Y., Wu Q., Chen X., Et al., Optimization design of the meridian line of progressive addition lenses based on genetic algorithm, Acta Optica Sinica, 34, 9, (2014)

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