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Acta Optica Sinica, Volume. 45, Issue 5, 0522001(2025)

Design of Optical Workbench with Honeycomb Sandwich Structure for Telescope

Jian Yuan1、*, Xiaotao Li1, Haoran Chen2, and Lei Zhang1、**
Author Affiliations
  • 1Chang Guang Satellite Technology Co., Ltd., Changchun 130033, Jilin , China
  • 2Harbin FRP Institute Co., Ltd., Harbin 150028, Heilongjiang , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (13)
    Equations (0)
    References (19)
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    Figures & Tables(13)
    Honeycomb sandwich structure and cellular characteristics

    Fig. 1. Honeycomb sandwich structure and cellular characteristics

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    Structural schematic of the telescope

    Fig. 2. Structural schematic of the telescope

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    Optical workbench with honeycomb sandwich structure. (a) Front side; (b) reverse side

    Fig. 3. Optical workbench with honeycomb sandwich structure. (a) Front side; (b) reverse side

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    Insert structures for optical workbench. (a) Heavy-load type; (b) edge type; (c) light-load type

    Fig. 4. Insert structures for optical workbench. (a) Heavy-load type; (b) edge type; (c) light-load type

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    Influence of workbench structural parameters on telescope performance. (a) Relative tilt θX; (b) relative deviation δY; (c) frequency f1

    Fig. 5. Influence of workbench structural parameters on telescope performance. (a) Relative tilt θX; (b) relative deviation δY; (c) frequency f1

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    Manufacturing process of workbench with honeycomb sandwich structure. (a) Hot bonding; (b) cold bonding

    Fig. 6. Manufacturing process of workbench with honeycomb sandwich structure. (a) Hot bonding; (b) cold bonding

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    Monitoring data for dimensional stability of optical workbench. (a) Interface flatness; (b) relative parallelism

    Fig. 7. Monitoring data for dimensional stability of optical workbench. (a) Interface flatness; (b) relative parallelism

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    Test of system stability on telescope mechanical prototype. (a) Distribution of reference prisms; (b) system mounting position; (c) monitoring data of relative angles

    Fig. 8. Test of system stability on telescope mechanical prototype. (a) Distribution of reference prisms; (b) system mounting position; (c) monitoring data of relative angles

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    System wavefront error test of telescope

    Fig. 9. System wavefront error test of telescope

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    System wavefront error data under different temperatures. (a) Normal temperature; (b) relative low temperature; (c) relative high temperature

    Fig. 10. System wavefront error data under different temperatures. (a) Normal temperature; (b) relative low temperature; (c) relative high temperature

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    • Table 1. Physical properties of M40J/cyanate ester prepreg and facepanel

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      Table 1. Physical properties of M40J/cyanate ester prepreg and facepanel

      MaterialE1 /GPaE2 /GPaμ12G12 /GPaG1Z /GPaG2Z /GPaα1 /（10-6 K-1）α2 /（10-6 K-1）ρ /（g·cm-3）
      Unidirectional prepreg200.007.000.304.84.84.8-0.5928.291.6
      Quasi-isotropic facepanel72.9772.970.3127.834.84.80.650.651.6

    • Table 2. Equivalent physical properties of honeycomb core

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      Table 2. Equivalent physical properties of honeycomb core

      Material

      E1 /

      GPa

      E2 /

      GPa

      E3 /

      GPa

      G12 /

      GPa

      G23 /

      GPa

      G31 /

      GPa

      		μ12μ23μ31

      α1 /

      （10-6 K-1）

      α2 /

      （10-6 K-1）

      α3 /

      （10-6 K-1）

      ρ /

      （kg·cm-3）

      Alluminum

      alloy

      		70.070.070.026.026.026.00.330.330.3323.623.623.62800

      Honeycomb

      core

      		2.6×10-32.6×10-32.1

      6.6×

      10-4

      		0.40.40.99750.00040.3123.623.623.646.20

    • Table 3. Simulation of telescope internal deformation under typical loadcases

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      Table 3. Simulation of telescope internal deformation under typical loadcases

      FEA loadcaseRMS /nmθX /（″）θY /（″）δX /μmδY /μmδZ /μm
      Horizontal gravity3.441-2.21-0.05+0.02+8.09-0.05
      Vertical gravity16.568+0.16-0.03-0.15-0.22+0.26
      Temperature change12.655-0.66+0.35-2.08+0.52-42.52
      Forced displacement0.745-0.15-1.18-3.33-0.34+0.07
      Cretiarion≤λ/30 （λ=632.8 nm）≤30≤30≤50≤50—
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    Jian Yuan, Xiaotao Li, Haoran Chen, Lei Zhang. Design of Optical Workbench with Honeycomb Sandwich Structure for Telescope[J]. Acta Optica Sinica, 2025, 45(5): 0522001

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    Paper Information

    Category: Optical Design and Fabrication

    Received: Nov. 6, 2024

    Accepted: Jan. 3, 2025

    Published Online: Mar. 24, 2025

    The Author Email: Jian Yuan (yuanjian@jl1.cn), Lei Zhang (zhanglei@jl1.cn)

    DOI:10.3788/AOS241718

    CSTR:32393.14.AOS241718

    Topics

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