@article{CHEN2026, 
author = {Haipeng CHEN and Haichuan YU and Xiangyu GU and Xinwei WANG and Xiaojiu ZHANG and Jun CHEN},
title = {Aerodynamic design methods for cross-domain morphing aircraft oriented to online deformation},
year = {2026},
journal = {Acta Aeronautica et Astronautica Sinica},
volume = {47},
number = {5},
keywords = {cross-domain morphing, multi-point design, dual-layer optimization method, shape optimization, planar shape optimization},
url = {https://www.sciopen.com/article/10.7527/S1000-6893.2025.32490},
doi = {10.7527/S1000-6893.2025.32490},
abstract = {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.}
}