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Acta Optica Sinica, Volume. 39, Issue 5, 0523002(2019)

Design of Adhesive Structure for Back-supported Space Reflector Inserts

Jichen Yu1、*, Jian Yuan1, Shanshan Cong1, Mingxuan Li1, and Xuezhi Jia1,2
Author Affiliations
  • 1 Chang Guang Satellite Technology Co. Ltd., Changchun, Jilin 130000, China
  • 2 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (14)
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    Cited By (5)
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    Figures & Tables(14)
    Structural diagram of mirror subassembly

    Fig. 1. Structural diagram of mirror subassembly

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    Variation of adhesive strength with adhesive layer thickness

    Fig. 2. Variation of adhesive strength with adhesive layer thickness

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    Schematic of relationship between adhesive layer thickness and sleeve radius

    Fig. 3. Schematic of relationship between adhesive layer thickness and sleeve radius

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    Finite element model. (a) Mirror subassembly; (b) sleeve; (c) local magnification of adhesive layer

    Fig. 4. Finite element model. (a) Mirror subassembly; (b) sleeve; (c) local magnification of adhesive layer

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    Adhesive layer stress curves under different thicknesses

    Fig. 5. Adhesive layer stress curves under different thicknesses

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    Cloud maps of static analysis. (a) X-direction gravity; (b) Y-direction gravity; (c) 4 ℃ temperature rise

    Fig. 6. Cloud maps of static analysis. (a) X-direction gravity; (b) Y-direction gravity; (c) 4 ℃ temperature rise

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    Deformation cloud map of mirror under adhesive layer contraction

    Fig. 7. Deformation cloud map of mirror under adhesive layer contraction

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    Flow chart of validation

    Fig. 8. Flow chart of validation

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    Surface shape of mirror

    Fig. 9. Surface shape of mirror

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    Mechanical conditions of random vibration experiment

    Fig. 10. Mechanical conditions of random vibration experiment

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    Frequency-sweep curve in Z direction

    Fig. 11. Frequency-sweep curve in Z direction

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    Surface shape of mirror after vibration experiment

    Fig. 12. Surface shape of mirror after vibration experiment

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    • Table 1. Parameters of optical epoxy (GHJ-01(Z))

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      Table 1. Parameters of optical epoxy (GHJ-01(Z))

      ParameterValue
      ExteriorNear colorless transparency
      Tensile bond strength (23 ℃) /MPa>10
      Temperature range /℃-60-+80
      Gelation time (25 ℃) /h8
      Cure cycle (25 ℃) /h168
      ToxicityLow

    • Table 2. Material properties

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      Table 2. Material properties

      MaterialDensity /(kg·mm-3)Young’s modulus E /MPaCTE /(10-6 K-1)ν
      Zerodur2.54×10-60.91×1050.10.24
      4J328.10×10-61.40×1050.10.25
      TC44.40×10-61.09×1059.10.34
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    Jichen Yu, Jian Yuan, Shanshan Cong, Mingxuan Li, Xuezhi Jia. Design of Adhesive Structure for Back-supported Space Reflector Inserts[J]. Acta Optica Sinica, 2019, 39(5): 0523002

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    Paper Information

    Category: Optical Devices

    Received: Nov. 8, 2018

    Accepted: Jan. 3, 2019

    Published Online: May. 10, 2019

    The Author Email:

    DOI:10.3788/AOS201939.0523002

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology