Journals Articles Conferences News About CLP
Submit a paper Email Alert
Search
Search
Articles
Journals
News
Advanced Search
Top Searches
2D MaterialsTransformation opticsQuantum PhotonicsSmall lasersSemiconductor UV PhotonicsSupersymmetric microring laser arrays

Acta Optica Sinica, Volume. 42, Issue 5, 0522001(2022)

Design of Integrated Carbon Fiber Secondary Mirror Supporting Structure

Sheng Wang, Shanshan Cong*, Zhipeng Xue, and Lei Zhang
Author Affiliations
  • Chang Guang Satellite Technology Co., Ltd., Changchun, Jilin 130031, China
    • show less
    AbstractGet PDF(in Chinese)
    Figures&Tables (19)
    Equations (0)
    References (11)
    Cited By (3)
    Tools
    Paper Information
    Topics
    Figures & Tables(19)
    Layout of optical system

    Fig. 1. Layout of optical system

    Download full size
    Finite element model for topology optimization

    Fig. 2. Finite element model for topology optimization

    Download full size
    Cell density distribution of structure after topology optimization

    Fig. 3. Cell density distribution of structure after topology optimization

    Download full size
    Integrated second mirror supporting structure

    Fig. 4. Integrated second mirror supporting structure

    Download full size
    Finite element model for size optimization

    Fig. 5. Finite element model for size optimization

    Download full size
    Optimized size distribution

    Fig. 6. Optimized size distribution

    Download full size
    First order vibration shape of truss

    Fig. 7. First order vibration shape of truss

    Download full size
    In-site vibration experiment

    Fig. 8. In-site vibration experiment

    Download full size
    Experimental data of sine-frequency sweep

    Fig. 9. Experimental data of sine-frequency sweep

    Download full size
    In-site statics experiment

    Fig. 10. In-site statics experiment

    Download full size

    • Table 1. Tolerance of optical system

      View table

      Table 1. Tolerance of optical system

      MirrorEccentric valueTilt
      Δx /μmΔy /μmΔz /μmθx /(″)θy /(″)θz /(″)
      Primary mirrorDatumDatumDatumDatumDatumDatum
      Secondary mirror1010101010—

    • Table 2. Supporting structure materials of space camera in common use

      View table

      Table 2. Supporting structure materials of space camera in common use

      MaterialDensity ρ /(g·cm-3)Elastic modulusE /GPaSpecific stiffnessThermal expansion coefficient /(10-6 ℃-1)
      TC44.4011425.909.10
      2A122.787025.1822.70
      SIC/Al (55%)2.9418061.208.00
      Invar8.1014117.400.05--7.50
      M401.607245.000.60

    • Table 3. Sizes of second mirror supporting structuremm

      View table

      Table 3. Sizes of second mirror supporting structuremm

      DesignvariableVariationrangeOptimizationvalueDesignvalue
      T1[1.5,6]1.822
      T2[1.5,6]3.754
      T3[1.5,6]2.052
      T4[1.5,6]3.924
      T5[1.5,6]1.602
      T6[1.5,6]2.072
      T7[1.5,6]1.501.5
      T8[1.5,6]4.034
      T9[1.5,6]6.006
      T10[1.5,6]1.541.6
      T11[1.5,6]1.712

    • Table 4. M40 single-plate material parameters

      View table

      Table 4. M40 single-plate material parameters

      r /(g·cm-3)Ex /GPaEy /GPaGxz /GPaGyz /GPaGxy /GPaAx /(10-6 ℃-1)Ay /(10-6 ℃-1)μ
      1.720074.54.54.5-0.5823.20.28

    • Table 5. Optimization results of lay-up of second mirror supporting structuremm

      View table

      Table 5. Optimization results of lay-up of second mirror supporting structuremm

      MaterialVariationrangeOptimizationvalueDesignvalue
      T0°[0.1,2]22
      T45°[0.1,2]0.9350.9
      T-45°[0.1,2]0.9350.9
      T90°[0.1,2]0.130.2

    • Table 6. Material parameters of truss

      View table

      Table 6. Material parameters of truss

      r /(g·cm-3)Ex /GPaEy /GPaGxz /GPaGyz /GPaGxy /GPaAx /(10-6 ℃-1)Ay /(10-6 ℃-1)μ
      1.711335.225.34.54.5-0.619.770.28

    • Table 7. Results of statics analysis

      View table

      Table 7. Results of statics analysis

      MirrorEccentricTilt
      Δx /μmΔy /μmΔz /μmθx /(″)θy /(″)θz /(″)
      Primary mirrorDatumDatumDatumDatumDatumDatum
      Secondary mirror2.50.07—0.012.78—

    • Table 8. Comparison of intrinsic frequency

      View table

      Table 8. Comparison of intrinsic frequency

      ModeIntrinsic frequencyfor analysis /HzIntrinsic frequencybefore vibration /HzIntrinsic frequencyafter vibration /HzError 1 /%Error 2 /%
      Mode 1141142.35142.350.90
      Mode 2252.2254.18252.870.80.6

    • Table 9. Results of in-site statics experiment(″)

      View table

      Table 9. Results of in-site statics experiment(″)

      Angle ofpitchOpticaltoleranceTiltangle foranalysisTilt anglefor gravityloadTilt anglefor thermalload
      θx102.7833.31
    Tools

    Get Citation

    Copy Citation Text

    Sheng Wang, Shanshan Cong, Zhipeng Xue, Lei Zhang. Design of Integrated Carbon Fiber Secondary Mirror Supporting Structure[J]. Acta Optica Sinica, 2022, 42(5): 0522001

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Set citation alerts for article
    Save article for my favorites
    Paper Information

    Category: Optical Design and Fabrication

    Received: Jul. 29, 2021

    Accepted: Sep. 10, 2021

    Published Online: Mar. 8, 2022

    The Author Email: Cong Shanshan (21390266@qq.com)

    DOI:10.3788/AOS202242.0522001

    Topics

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