Infrared and Laser Engineering, Volume. 54, Issue 5, 20240500(2025)
Thermal property research of large-aperture lunar orbit satellite laser reflector
Figures & Tables(17)
Fig. 1. Several kinds of laser reflectors for Earth medium and high orbit satellites
Fig. 2. Existing lunar laser reflectors and LRO laser reflectors around the Moon
Fig. 3. Structural schematic of large-aperture lunar orbit satellite laser reflector
Fig. 4. Simulation results of FFDP and OCS of laser reflectors with different calibers
Fig. 5. Thermal analysis model. (a) Whole satellite model; (b) Reflector model
Fig. 6. Temperature field simulation results of laser reflector under different conditions
Fig. 7. Line chart of reflector temperature under various conditions
Fig. 8. Line chart of reflector temperature under different surface treatments
Fig. 10. Schematic design of laser reflector temperature experiment
Fig. 11. FFDP test results of laser reflector at different temperature gradients
Fig. 12. Line chart of the reflector OCS value with longitudinal temperature difference
Table 1. Performance parameters of laser reflectors for Earth medium and high orbit satellites
View tableView in ArticleTable 1. Performance parameters of laser reflectors for Earth medium and high orbit satellites
Parameter MEO GEO/IGSO Galileo GLONASS Size/cm 31.2×28.0×3.0 48.9×43.0×3.0 43.0×47.0×3.0 Ф62.8 Diameter/mm 33 33 33 48 Number 42 90 84 36 Material Fused silica Fused silica Fused silica Fused silica Dihedral offset/(") 0.6 0.5 0.8 2.5 Weight/kg 2.45 4.85 - 6
Table 2. Performance parameters of lunar laser reflector and LRO satellite laser reflector around the Moon
View tableView in ArticleTable 2. Performance parameters of lunar laser reflector and LRO satellite laser reflector around the Moon
Parameter Apollo-11 Apollo-14 Apollo-15 Luna-17 Luna-21 LRO Size/cm 68.6×66×29.2 63.8×64.8×30 69.5×64.8×30 44×19 44×19 15×18×5 Dimention/mm Ф38 Ф38 Ф38 106 106 Ф32 Number 100 100 300 14 14 12 Reflective area/cm2 1 134 1 134 3 402 681 681 - Material Fused silica Fused silica Fused silica Fused silica Fused silica Fused silica Weight/kg 23.6 20.4 36.2 - - - Data proportion 10.03% 9.94% 77.2% 0.15% 2.67% 0.65%
Table 3. Conditions for laser reflector temperature field simulation
View tableView in ArticleTable 3. Conditions for laser reflector temperature field simulation
Condition Satellite attitude Stage Boundray/℃ Cold condition 1 −Z to the Sun Initial stage −25 Cold condition 2 +Y to the Sun Initial stage −25 Hot condition 3 +Z+Y 60° to the Sun Last stage 45/30 Hot condition 4 +Z to the Sun Last stage 45/30
Table 4. Temperature level of the reflector under various conditions
View tableView in ArticleTable 4. Temperature level of the reflector under various conditions
Condition 1 Condition 2 Condition 3 Condition 4 Bottom center/℃ −34.8 −34.7 36.9 68.6 Top/℃ −33.9 −33.8 38.5 74.7 Temperature gradient/℃ 0.9 0.9 1.6 6.1 Minimum temperature/℃ −34.8 −34.7 36.9 67.7 Maximum temperature/℃ −33.7 −33.6 38.5 75.0
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Xueyu WANG, Kai TANG, Zhien CHENG, Hongjun FANG, Mingliang LONG, Maojin YUN. Thermal property research of large-aperture lunar orbit satellite laser reflector[J]. Infrared and Laser Engineering, 2025, 54(5): 20240500
Paper Information
Category: Laser
Received: Dec. 13, 2024
Accepted: --
Published Online: May. 26, 2025
The Author Email: Zhien CHENG (cze@shao.ac.cn)
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