Fastening torque simulation method of pressure-ring based on finite element simulation analysis and experimental verification

Yue Zhao; Shifa Kang; Xihong Fu; Gaopeng Zhang

doi:10.1117/12.2611752

15 February 2022 Fastening torque simulation method of pressure-ring based on finite element simulation analysis and experimental verification

Yue Zhao, Shifa Kang, Xihong Fu, Gaopeng Zhang

Author Affiliations +

Proceedings Volume 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021); 121661I (2022) https://doi.org/10.1117/12.2611752
Event: Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 2021, Hong Kong, Hong Kong

Abstract

Aiming at the problem of abnormal sound of lens caused by incomplete tightening of pressure coil after optical lens installation, this paper presents a method for calculating and verifying the tightening moment of pressure coil. According to the mechanical dimension of the screw thread of the pressing ring, the mechanical properties of the pressing ring of the mirror tube and the optimal number of turning rings were calculated and analyzed. In order to meet the practical application requirements, the tightening moment of the pressure coil obtained by the solution was brought into the 3D model for simulation, and the finite element modeling analysis of the tightening moment of the pressure coil of the optical lens was completed, so as to further solve the displacement variation of the lens group. Finally, the above analysis results were quantified by torque wrenches, and random vibration was carried out at one third of the order of acceptance level vibration test conditions, so as to complete the bottom analysis and verify the tightening torque of the screw ring under different ratios of XM-31 adhesive and vulcanizing agent. The experimental results show that the characteristic sweep curve of the optical lens does not change before and after the vibration, the mode of the optical lens remains stable all the time, and the data modal analysis results are consistent with the actual situation.

Citation Download Citation

Yue Zhao, Shifa Kang, Xihong Fu, and Gaopeng Zhang "Fastening torque simulation method of pressure-ring based on finite element simulation analysis and experimental verification", Proc. SPIE 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 121661I (15 February 2022); https://doi.org/10.1117/12.2611752

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KEYWORDS

Mirrors

Finite element methods

Optical components

3D modeling

Reliability

Resistance

Sensors

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