Spacecraft Recovery & Remote Sensing, Volume. 45, Issue 4, 9(2024)
Shape Optimization Design of Small Cargo Re-entry Capsule
Figures & Tables(10)
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Table 1. Comparison of calculated results with data in references
View tableView in ArticleTable 1. Comparison of calculated results with data in references
数据类别 CA CN Cm0 CL/CD 计算值 1.352 6 0.152 1 0.102 1 −0.246 2 试验值[ 20 ]1.334 6 0.159 0 0.102 5 −0.237 4 相对误差/% −1.35 4.40 0.39 −3.71
Table 2. Comparison between different optimization techniques
View tableView in ArticleTable 2. Comparison between different optimization techniques
来源 气动力模块 优化算法 Rn/m LF/m θF/（°） CD CL CL/CD RV 文献[ 5 ]CART3D MIGA+MMFD 0.50 3.00 21.46 0.5110 0.4090 0.8010 0.8019 本文 修正牛顿理论 MIGA+MMFD 0.50 2.98 23.17 0.5088 0.4077 0.8015 0.8192 本文 修正牛顿理论 MIGA+NLQPL 0.51 2.62 24.31 0.5024 0.4052 0.8065 0.8144 本文 修正牛顿理论 纯MIGA 0.56 2.43 24.31 0.5059 0.4049 0.8004 0.8109
Table 3. Design variables and their variation range
View tableView in ArticleTable 3. Design variables and their variation range
设计变量 最大截面直径dm/m 球冠钝度 $ \overline {{R_{\text{n}}}} $ 肩部半径比 $ \overline {{R_{\text{c}}}} $ 长细比λ 倒锥角θc/（°） 下界 1.00 0.80 0.03 0.80 7.00 上界 1.50 1.20 0.05 1.20 19.00
Table 4. Comparison of single objective optimization solution and initial solution
View tableView in ArticleTable 4. Comparison of single objective optimization solution and initial solution
目标状态 dm/m $ \overline {{R_{\text{n}}}} $ θc/（°） $ \overline {{R_{\text{c}}}} $ $ \lambda $ V/m3 RV CL/CD CD 初始外形 1.10 0.90 7.00 0.04 1.00 0.665 4 0.942 4 0.243 7 1.322 3 MIGA优化外形 1.43 1.16 18.59 0.03 0.87 1.082 0 0.912 7 0.308 4 1.395 0 MMFD更优外形 1.43 1.16 18.78 0.03 0.87 1.078 3 0.911 7 0.308 5 1.394 9 NLPQL更优外形 1.43 1.20 18.61 0.03 0.92 1.118 4 0.903 5 0.311 2 1.404 6
Table 5. The comparison between Pareto solutions and initial solution
View tableView in ArticleTable 5. The comparison between Pareto solutions and initial solution
外形状态 dm/m $ \overline {{R_{\text{n}}}} $ θc/（°） $ \overline {{R_{\text{c}}}} $ $ \lambda $ V/m3 RV qc/（kW · m−2）CL/CD CD 初始值 1.10 0.90 7.00 0.04 1.00 0.665 4 0.942 4 491.206 0.243 7 1.322 3 A点 1.46 1.20 16.53 0.03 1.01 1.326 9 0.900 1 368.884 0.310 0 1.407 7 B点 1.50 1.20 10.50 0.03 1.01 1.611 7 0.922 5 364.741 0.296 0 1.411 2 C点 1.48 1.20 7.02 0.03 1.01 1.678 7 0.923 9 366.063 0.279 1 1.417 3
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Yifan WANG, Wei JIN, Hongbiao LIU. Shape Optimization Design of Small Cargo Re-entry Capsule[J]. Spacecraft Recovery & Remote Sensing, 2024, 45(4): 9
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Received: Aug. 31, 2023
Accepted: Aug. 31, 2023
Published Online: Nov. 1, 2024
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