AEROSPACE SHANGHAI, Volume. 42, Issue 2, 144(2025)
Data and Knowledge Fusion-driven Digital Twin Experiment for Space Docking Mechanisms
Figures & Tables(24)
Fig. 3. Interaction diagram of the component transmission in the separation process
Fig. 5. Setup diagram or scene construction diagram of an air-bearing testbed
Fig. 8. Simulated separation velocity of the space docking mechanism in the 15th year
Fig. 9. Simulated angular velocity of the space docking mechanism in the 15th year
Fig. 10. Comparison of the simulated separated angular velocity outliers before and after processing
Fig. 11.
Fig. 12.
Fig. 14. Prediction model of the separation velocity and separation angular velocity based on RF
Fig. 17. SHAP heat plots of the separation velocity and separation angular velocity
Fig. 18. Comparison charts of the intrinsic and SHAP extrinsic feature importance rankings of the separation velocity prediction model
Fig. 19. Comparison charts of the intrinsic and SHAP extrinsic feature importance rankings of the separation angular velocity prediction model
Table 1.
Construction of the rule model of the space docking mechanism View tableView in ArticleTable 1.
Construction of the rule model of the space docking mechanism 组件名称 不同阶段结构变化 行为规则 对接框 1阶段保持刚体飞行； 2、3阶段相对分离运动 相对静止到相向运动 推杆弹簧系统 1阶段保持压缩； 2、3阶段推出 推杆先保持压缩， 后推出 绳轮系统 2阶段驱动对接锁系 电机驱动，绳轮转动，钢丝绳拉紧，其余绳轮转动 对接锁系 2阶段解锁 偏心轴旋转，偏心套旋转，移动，锁钩转动 密封圈 1阶段锁紧密封 未压缩
Table 2.
Behavior rules of the behavior rule model of the air flotation test bench View tableView in ArticleTable 2.
Behavior rules of the behavior rule model of the air flotation test bench 组件名称 不同阶段结构变化 行为规则 主、被动端气浮滑板 2、3、4阶段输入压缩空气 气浮滑板膨胀 夹持手抓、平动制动机构、转角锁紧机构 2、3阶段释放， 4阶段制动 夹持手抓转动、转角锁紧机构转动、平动制动机构平移 飞行模拟器 1阶段静止，2、3、4阶段运动 平移
Table 3.
Threshold intervals of the separation indicators for the spatial docking mechanism View tableView in ArticleTable 3.
Threshold intervals of the separation indicators for the spatial docking mechanism 参数 过小 偏小 正常 过大 分离速度/(mm·s-1) [0，100） [100，125） [125，150） [150，+ 分离角速度/[(°)·s-1] [0，0.005） [0.005，0.1） [0.1，+
Table 4.
Analysis on the evaluation indicators of the separation velocity prediction model View tableView in ArticleTable 4.
Analysis on the evaluation indicators of the separation velocity prediction model 模型 训练集 训练集MSE/
[(°)·s-1]
训练集MAE/
[(°)·s-1]
测试集 测试集MSE/
[(°)·s-1]
测试集MAE/
[(°)·s-1]
BO_SVM 0.934 4.02×10-3 1.02×10-3 0.889 6.65×10-3 1.36×10-3 BO_RF 0.999 0.019×10-3 0.11×10-3 0.951 2.92×10-3 0.92×10-3 BO_XGB 0.986 0.85×10-3 0.48×10-3 0.907 5.60×10-3 1.05×10-3 BO_LGB 0.942 4.26×10-3 0.98×10-3 0.869 7.18×10-3 1.26×10-3 BO_CB 0.980 1.19×10-3 0.58×10-3 0.931 4.15×10-3 0.99×10-3
Table 5.
Analysis on the indicators of the separation angular velocity prediction model View tableView in ArticleTable 5.
Analysis on the indicators of the separation angular velocity prediction model 模型 训练集 训练集MSE/
[(°)·s-1]
训练集MAE/
[(°)·s-1]
测试集 测试集MSE/
[(°)·s-1]
测试集MAE/
[(°)·s-1]
BO_SVM 0.965 1.43×10-3 0.66×10-3 0.908 3.79×10-3 0.99×10-3 BO_RF 0.987 0.55×10-3 0.307×10-3 0.984 0.68×10-3 0.48×10-3 BO_XGB 0.999 0.64×10-3 0.384×10-3 0.979 0.79×10-3 0.51×10-3 BO_LGB 0.949 2.09×10-3 0.556×10-3 0.942 2.42×10-3 0.71×10-3 BO_CB 0.985 0.62×10-3 0.471×10-3 0.978 0.90×10-3 0.59×10-3
Tools
Get Citation
Copy Citation Text
Zhao WANG, Youyou YU, Xulong JIN, Zifeng XU, Zenggui GAO, Na YANG, Lilan LIU. Data and Knowledge Fusion-driven Digital Twin Experiment for Space Docking Mechanisms[J]. AEROSPACE SHANGHAI, 2025, 42(2): 144
Paper Information
Category: Simulation and Analysis
Received: Feb. 25, 2025
Accepted: --
Published Online: May. 26, 2025
The Author Email:
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20