• Infrared and Laser Engineering
  • Vol. 53, Issue 8, 20240274 (2024)
Xu LIU, Heng WANG, Xiaofeng LIU, and Zhen JIA
Author Affiliations
  • Research and Design Department, Changchun Nationspace Optics Technology Co., Ltd., Changchun 130000, China
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    DOI: 10.3788/IRLA20240274 Cite this Article
    Xu LIU, Heng WANG, Xiaofeng LIU, Zhen JIA. Design and analysis of carbon fiber main load-bearing cylinder structure for space cameras[J]. Infrared and Laser Engineering, 2024, 53(8): 20240274 Copy Citation Text show less
    Layout of optical system
    Fig. 1. Layout of optical system
    Main load-bearing cylinder structure
    Fig. 2. Main load-bearing cylinder structure
    Upper cylinder structure
    Fig. 3. Upper cylinder structure
    Second mirror support rod structure
    Fig. 4. Second mirror support rod structure
    Simulation analysis of deformation cloud map
    Fig. 5. Simulation analysis of deformation cloud map
    Model of size optimization
    Fig. 6. Model of size optimization
    Optimized size distribution cloud map
    Fig. 7. Optimized size distribution cloud map
    First order fundamental frequency deformation cloud map
    Fig. 8. First order fundamental frequency deformation cloud map
    Static deformation cloud map
    Fig. 9. Static deformation cloud map
    4 ℃ temperature rise deformation cloud map
    Fig. 10. 4 ℃ temperature rise deformation cloud map
    The distribution of analysis sampling points
    Fig. 11. The distribution of analysis sampling points
    Sinusoidal sweep frequency analysis curve
    Fig. 12. Sinusoidal sweep frequency analysis curve
    Random vibration response curve
    Fig. 13. Random vibration response curve
    Vibration test site diagram
    Fig. 14. Vibration test site diagram
    Sinusoidal sweep frequency test curve
    Fig. 15. Sinusoidal sweep frequency test curve
    Random vibration test curve
    Fig. 16. Random vibration test curve
    Displacement/μmTilt/(″)
    Δx, Δy, Δzθx, θyθz
    Primary mirrorReference
    Second mirror≤6≤6None
    Table 1. Tolerance of optical system
    MaterialDensity ρ/g·cm−3Young's modulusE/GPaThermal expansivityα/×10−6 K−1Specific stiffness
    ZTC44.401149.126
    SiCp/Al2.951808.061
    2A122.807022.725
    CFRP1.60720.645
    Table 2. Physical property table of related materials
    ParameterValue
    ρ/g·cm−31.7
    Ex/GPa200
    Ey/GPa7
    αx/×10−6−1−0.59
    αy/×10−6−123.3
    μ0.29
    Table 3. Material parameters of M40J single-layer board
    DesignvariableInitial value/mmVariation range/mmOptimization value/mm
    T15.0[2.0,8.0]6.0
    T22.5[2.0,6.0]3.2
    T34.0[2.0,6.0]2.5
    T42.5[1.0,3.0]1.5
    T54.0[2.0,6.0]2.4
    T68.0[4.0,10.0]5.0
    T76.0[4.0,8.0]4.8
    T81.0[0.5,2.0]1.6
    T93.5[3.0,6.0]5.2
    Table 4. The results of size optimization
    DesignvariableInitial value/mmVariation range/mmOptimization value/mmDesign value/mm
    $ {T}_{0^{\circ}}^{G} $1.5[1.0,3.0]2.752.8
    $ {T}_{\beta }^{G} $1.5[0.8,2.0]1.221.2
    $ {T}_{-\beta }^{G} $1.5[0.8,2.0]1.221.2
    $ {T}_{90^{\circ}}^{G} $1.5[0.6,1.0]0.810.8
    β45°[10°,60°]24.7°25°
    −β−45°[−60°,−10°]−24.7°−25°
    $ {T}_{0^{\circ}}^{L} $0.4[0.5,1.0]0.820.8
    $ {T}_{45^{\circ}}^{L} $0.4[0.2,0.8]0.280.3
    $ {T}_{-45^{\circ}}^{L} $0.4[0.2,0.8]0.280.3
    $ {T}_{90^{\circ}}^{L} $0.4[0.2,0.8]0.220.2
    Table 5. The results of layer optimization
    Ex/GPaEy/GPaαx/×10−6−1αy/×10−6−1
    Not optimized72.072.0−3.013.01
    Second mirror support rod145.434.7−0.8314.1
    Strengthening beams115.247.0−0.479.17
    Table 6. Comparison of parameters before and after optimization
    ModeFrequency/Hz
    1241.2
    2241.7
    3316.4
    Table 7. The first three natural frequencies
    Frequency/HzPower Spectral Density (PSD)/g2·Hz−1
    x directionz direction
    201×10−47.13×10−5
    1508×10−45.3×10−4
    8008×10−45.3×10−4
    2 0001×10−48.55×10−5
    Table 8. Random vibration power spectral density
    Xu LIU, Heng WANG, Xiaofeng LIU, Zhen JIA. Design and analysis of carbon fiber main load-bearing cylinder structure for space cameras[J]. Infrared and Laser Engineering, 2024, 53(8): 20240274
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