Aircraft-oriented intelligent prediction method foraerodynamic coefficients
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1.Laboratory of Digitizing Software for Frontier Equipment, National University of Defense Technology, Changsha 410073 , China ;2.National Key Laboratory of Parallel and Distributed Computing, National University of Defense Technology, Changsha 410073 , China ;3.College of Computer Science and Technology, National University of Defense Technology, Changsha 410073 , China ;4.Computational Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000 , China ;5.School of Aeronautics and Astronautics, Sun Yat-sen University, Shenzhen 518107 , China ;6.School of Mechanical Engineering, Dalian University of Technology, Dalian 116024 , China

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TP18;V211.3

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    Abstract:

    Computer-aided aerodynamic design is crucial for aircraft geometry optimization. To further improve the efficiency of aerodynamic characteristic modeling, an aircraft-oriented intelligent aerodynamic coefficient prediction method, AeroPointNet, was proposed. A three-dimensional point cloud representation of geometric models was employed as input, and a neural network architecture was constructed to efficiently extract both local and global geometric features. To capture variations in flow conditions, physical information was fused with geometric features, and two weighted attention mechanisms wereintroduced to dynamically adjust the weights, by which the problem of weight imbalance was effectively addressed. Experimental results show that AeroPointNet achieves a computational efficiency improvement of over three orders of magnitude in aerodynamic coefficient prediction compared with traditional numerical methods. The mean relative errors of lift and drag coefficients are kept below 5%.

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肖奇松, 陈新海, 陈蔚丰, 等. 面向飞行器的气动力系数智能预测方法[J]. 国防科技大学学报, 2026, 48(1): 88-98.

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  • Received:January 03,2025
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  • Online: January 30,2026
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