Infrared and Laser Engineering, Volume. 50, Issue 8, 20200493(2021)
Parametric optimization design of rectangular reflective mirror and flexible component
Figures & Tables(14)
Fig. 5. Iteration curve of structural parameters of reflective mirror
Fig. 8. Iteration curve of structural parameters of flexible component
Fig. 9. First constraint eigen frequency of reflective mirror subassembly
Table 1. Material properties of reflective mirror subassembly
View tableView in ArticleTable 1. Material properties of reflective mirror subassembly
Part Mirror Cone sleeve Flexible component Backplane Material SiC 4J32 TC4 SiC/Al Density ρ/kg·m−3 3200 8100 4440 2940 Young’s modulus E/GPa 400 141 109 213 E/ρ/m 125×10−6 17.4×10−6 24.5×10−6 72.4×10−6 Thermal expansivity α/K−1 2.51×10−6 2.41×10−6 9.21×10−6 8.01×10−6 Poisson’s ratio 0.14 0.25 0.34 0.18
Table 2. Design variables and optimization results
View tableView in ArticleTable 2. Design variables and optimization results
Name Height Face thickness Hole thickness Side thickness Chamfer R1 R2 R3 R4 R5 Ranges [30, 60] [5, 12] [5, 20] [2, 8] [0, 60] [2, 8] [2, 8] [2, 8] [2, 8] [2, 8] Initialization 42 mm 10 mm 11 mm 4 mm 33° 4 mm 4 mm 4 mm 4 mm 4 mm Effects −47.6% 36.3% 7.2% 47.5% −23.7% 5.1% 11.6% 19.2% 18.5% 5.6% Optimization 38.093 8 6 2 36.398 8 6.731 2 2 2 Rounding value 38 mm 8 mm 6 mm 2 mm 36° 8 mm 6.5 mm 2 mm 2 mm 2 mm
Table 3. Design variables and optimization results
View tableView in ArticleTable 3. Design variables and optimization results
Name H1 H2 H3 (D1−D2)/2 Ranges [2, 0] [15, 5] [20, 5] [2, 8] Initialization/mm 4 23.5 27.5 4.5 Optimization 4.152 21.625 31.775 2.621 Rounding value 4.2 21.5 31.5 3
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Pengpeng Wang, Hongwei Xin, Junqing Zhu, Yongxian Wang, Wei Sha, Changzheng Chen. Parametric optimization design of rectangular reflective mirror and flexible component[J]. Infrared and Laser Engineering, 2021, 50(8): 20200493
Paper Information
Category: Optical design
Received: Dec. 14, 2020
Accepted: --
Published Online: Nov. 2, 2021
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