ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Aerodynamic design methods for cross-domain morphing aircraft oriented to online deformation
Received date: 2025-06-30
Revised date: 2025-11-10
Accepted date: 2025-11-13
Online published: 2025-11-20
Supported by
Key Program of the National Natural Science Foundation of China(92471205)
Morphing aircraft， which adapt their aerodynamic shape online to meet mission demands， are a prominent research topic for maintaining high performance across wide flight envelopes. To address the challenges of integrated coordination between online/offline design variables and multi-profile heterogeneous constraints in the aerodynamic design of morphing aircraft， we develop a multi-mission aerodynamic design method for cross-domain aircraft. The proposed method parameterizes the aerodynamic shape with both online and offline variables and constructs an inner-outer dual-layer coupled optimization framework aimed at achieving a globally optimal offline shape while meeting the optimal online configurations for each flight profile. The method was applied to a variable-sweep cross-domain aircraft， and shape optimization is carried out for take-off/landing （max lift coefficient） and high-speed flight （max lift-to-drag ratio with center of pressure constraints）. Depending on the objective weights， the optimized lift coefficient at Ma=0.4 increased by 55.03% and 56.85%， while lift-to-drag ratios at Ma=6.0 and Ma=10.0 increased by 1.16%， 1.69% and 0.94%， 1.68%， respectively. Crucially， the high-speed center of pressure variation was successfully controlled within the 2% design constraint in all cases. These results verify the effectiveness of the proposed optimization framework.
Haipeng CHEN , Haichuan YU , Xiangyu GU , Xinwei WANG , Xiaojiu ZHANG , Jun CHEN . Aerodynamic design methods for cross-domain morphing aircraft oriented to online deformation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2026 , 47(5) : 132490 -132490 . DOI: 10.7527/S1000-6893.2025.32490
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