机载宽温条件下反射镜组件与粘接层设计

张家齐; 郭艺博; 张友建; 张志华

doi:10.37188/CO.2022-0194

Volume 16 Issue 3

May 2023

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Chinese Optics > 2023 > 16(3): 578-586.

ZHANG Jia-qi, GUO Yi-bo, ZHANG You-jian, ZHANG Zhi-hua. Design of reflector assembly and adhesive layer under airborne wide temperature conditions[J]. Chinese Optics, 2023, 16(3): 578-586. doi: 10.37188/CO.2022-0194

Citation:

ZHANG Jia-qi, GUO Yi-bo, ZHANG You-jian, ZHANG Zhi-hua. Design of reflector assembly and adhesive layer under airborne wide temperature conditions[J]. Chinese Optics, 2023, 16(3): 578-586. doi: 10.37188/CO.2022-0194

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Design of reflector assembly and adhesive layer under airborne wide temperature conditions

doi: 10.37188/CO.2022-0194

ZHANG Jia-qi^{1
,
,},
GUO Yi-bo^{1, 2
,},
ZHANG You-jian^3
,,
ZHANG Zhi-hua^{1, 2
,}

1.
National and Local Joint Engineering Research Center of Space and Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130000, China
2.
College of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun 130000, China
3.
Jilin Henghui Photoelectricity Technology Co, ltd., Changchun 130000, China

Funds: Supported by the Major Research plan of the National Natural Science Foundation of China (No. 91338116)

More Information

Corresponding author: zjq_cust@foxmail.com
Received Date: 16 Sep 2022
Rev Recd Date: 08 Oct 2022
Accepted Date: 02 Nov 2022

Available Online: 09 Dec 2022

Abstract

Abstract

Airborne ambient temperature varies widely and airborne vibration can be strong. Because there is a difference in the thermal expansion coefficients of an Invar inlay and mirror material, a mirror’s higher coating temperature means that the traditional bonding process will lead to bonding failure and the surface precision of the mirror cannot meet system requirements. Therefore, this paper proposes a new method of bonding the mirror after processing and coating, and designs some important parameters for the adhesive layer. RTV is used as the main binder for the mirror and the inlay, and the effect of RTV curing on the structure is alleviated by favorable elasticity. The thickness of RTV is 1.1 mm, its width is 7.2 mm and the thickness of the epoxy adhesive is 0.022 mm. The simulation results show that the RMS of the mirror shape is 25.91 nm and the first-order frequency of the mirror group mode is 242 Hz when the gravity is 1 g and temperature change are −40 °C (the initial temperature is 20 °C). The final surface detection RMS is 15.8 nm and the resonance frequency is 213 Hz. The experimental results show that the design, structure and bonding layer can meet the wide temperature range and vibration requirements.
- single pendulum mirror,
- bonding layer design,
- finite element analysis,
- infrared tracking system

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References(18)

References

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