空间引力波探测望远镜集成结构的胶接方法研究

赵宏超; 刘畅; 周文科; 朱汉斌; 陈文多

doi:10.37188/CO.EN-2024-0025

空间引力波探测望远镜集成结构的胶接方法研究

1.
中山大学先进制造学院, 广东深圳 518107
2.
中山大学航空航天学院, 广东深圳 518107
3.
中山大学材料学院, 广东深圳 518107

详细信息

中图分类号: O348
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出版历程
- 收稿日期: 2024-07-31
- 修回日期: 2024-09-04
- 录用日期: 2024-10-09
- 网络出版日期: 2024-10-22

Study of bonding layer for integrated structure of space gravitational wave detector telescope

doi: 10.37188/CO.EN-2024-0025

1.
School of Advanced Manufacturing, Shenzhen Campus of Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen, Guangdong 518107, P.R. China
2.
School of Aeronautics and Astronautics, Sun Yat-Sen University, No. 66, Gongchang Road, Guangming District, Shenzhen, Guangdong 518107, P.R. China
3.
School of Materials, Shenzhen Campus of Sun Yat-sen University, No. 66, Gongchang Road, Guangming District, Shenzhen, Guangdong 518107, P.R. China

Funds: Supported by Shenzhen Science and Technology Program (No. 20220818153519003); National Key R & D Program of China (No. 2021YFC2202103); National Natural Science Foundation of China (No. 22341303)

More Information

Author Bio:
ZHAO Hongchao (1985—), PH.D, Associate Professor, School of Advanced Manufacturing, Shenzhen Campus of Sun Yat-sen University. His research interests are in precision optical systems and ultra -precision and ultra-stable structures. E-mail: zhaohongch@mail.sysu.edu.cn

CHEN Wenduo (1986—), PH.D, Associate Professor, School of Materials, Shenzhen Campus of Sun Yat-sen University. Her research interests are in the computational simulation and big data work of polymer and composite materials. E-mail: chenwd29@mail.sysu.edu.cn

Corresponding author: chenwd29@mail.sysu.edu.cn

摘要

摘要:
为了实现超低频段空间引力波的探测，望远镜和光学平台的集成结构需要具有极高的稳定性和可靠性。然而，望远镜悬臂梁式的设计对集成结构的研制提出了重大挑战，特别是依赖于玻璃-金属异质键合的粘接结构。为了应对这些挑战实现望远镜系统的高可靠性研制，本研究对集成结构粘合层进行了设计、分析和实验研究。研究表明，J-133粘合剂在粘接层厚度为0.30 mm、金属基板的表面粗糙度为Ra 0.8时具有最佳性能。这些发现显著提高了光学系统的可靠性，同时最大限度地降低了潜在风险。
- 空间引力波探测器 /
- 集成结构 /
- 玻璃-金属异质键合
Abstract:
To detect gravitational waves in space, the telescope and optical platform require high stability and reliability. However, the cantilevered design presents challenges, especially in the glass-metal hetero-bonding process. This study focuses on the analysis and experimental research of the bonding layer in the integrated structure. By optimizing the structural configuration and selecting suitable bonding processes, the reliability of the telescope system is enhanced. The research indicates that the use of J-133 adhesive achieves the best performance, with a bonding layer thickness of 0.30 mm and a metal substrate surface roughness of Ra 0.8. These findings significantly enhance the reliability of the optical system while minimizing potential risks.
- space gravitational-wave detector /
- integrated structure /
- glass-metal hetero-bonding

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Figure 1. Movable optical subassemblies (MOSAs) and integrated structure. (a) Key components of movable optical subassemblies and (b) integrated structure and design parameters.

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Figure 2. The second and third modal shapes. (a) The second modal shape and (b) third modal shape.

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Figure 3. Stress cloud map of bonding layer in random vibration analysis. (a) Flexures bonded on with epoxy. (b) Maximum normal stress cloud map when excitations are applied in the x-direction. (c) Maximum normal stress cloud map when excitations are applied in the y-direction. (d) Random vibration inputs. (e) Maximum normal stress cloud map when excitations are applied in the z-direction. (f) Maximum shear stress cloud map of the bonding layer.

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Figure 4. Bonding process and tensile strength test. (a) Bonding process and (b) tensile strength test.

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Figure 5. Tensile strength test results. (a) Tensile strength test results of J-133 adhesive. (b) Tensile strength test results of GHJ-01(z) adhesive. (c) Tensile strength test results of 3M-DP2216 adhesive. (d) Average strength values of three adhesives at different roughness levels

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Figure 6. Failure process and experimental results of J-133 bonding layer.

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Table 1. Optimal solution of integrated structural parameters.

Variables	Range of values	Optimization results
The upper ring support radii r₁/mm	150–180	180.0
The lower ring support radii r₂/mm	180–240	206.5
The angle between the upper support points α/°	5–20	15.7
The angle between the lower support points β/°	15–40	35.0

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Table 2. Alternative epoxy adhesive and experimental design.

	Variables
Epoxy adhesive	J-133 GHJ-01(Z) 3M-DP2216
Bonding-layer thickness /mm	0.15 0.3 0.5
Surface roughness /μm	Ra0.8 Ra1.6 Ra3.2 Ra6.3
Single group specimens	36
Total specimens	108

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