Title: Optimal design and simulation of the stepped beam of a large-scale ultra-precision optical aspheric machine

Authors: Lin Sun; Shuming Yang; Pu Zhao; Jianjun Ding; Xingyuan Long; Zhuangde Jiang

Addresses: State Key Laboratory of Mechanical Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, 710049, China ' State Key Laboratory of Mechanical Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, 710049, China; State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China ' State Key Laboratory of Mechanical Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, 710049, China ' State Key Laboratory of Mechanical Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, 710049, China ' State Key Laboratory of Mechanical Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, 710049, China ' State Key Laboratory of Mechanical Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, 710049, China

Abstract: We have designed a precision machine for the manufacture of large-scale optical aspheric mirrors. The beam is one key component of the machine and it has a feature of three steps with the length of 3,100 mm. The technique driven at the centre of gravity has been used in the beam design. This feature makes a contribution to optimise force distribution, increase stiffness and reduce deformation so as to realise high accuracy.

Keywords: optimal design; finite element method; stepped beam.

DOI: 10.1504/IJNM.2017.085109

International Journal of Nanomanufacturing, 2017 Vol.13 No.3, pp.210 - 220

Accepted: 29 Dec 2015
Published online: 13 Jun 2017 *

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