ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Parametric aeroelastic modeling and flutter characteristic analysis of variable camber wing
Received date: 2022-04-28
Revised date: 2022-05-20
Accepted date: 2022-07-13
Online published: 2022-07-21
Supported by
National Natural Science Foundation of China(11972180)
The mass，stiffness，and damping characteristics of the morphing aircraft structure will change significantly during the morphing process to lead to incredible complexity of the aeroelastic effect. Efficient and accurate prediction of the flutter boundary is one of the challenging problems in the structural dynamics design of morphing aircraft. Existing nonparametric aeroelastic modeling methods can only analyze the flutter of a single morphing configuration，and repeated modeling is required for flutter calculation of morphing configuration，which may incur low computational efficiency and result in flutter boundary loss. This paper proposes a new parametric aeroelastic modeling for efficient flutter analysis of a wing with a continuously variable trailing edge. Based on the proposed aeroelastic modeling method，systematic analysis of parameter-varying flutter characteristics of a variable camber wing is investigated. To verify the accuracy of the parametric modeling method in parameter-varying flutter prediction，numerical calculation and comparative study were carried out in terms of parameter-varying modal characteristics， aerodynamic calculation and flutter prediction of variable camber wing. The simulation results indicate that the method proposed can efficiently and accurately predict parameter-varying flutter characteristics of morphing wing in the whole parameter space.
Key words： dynamics; morphing wing; aeroelasticity; vibration; flutter
Shijie YU , Xinghua ZHOU , Rui HUANG . Parametric aeroelastic modeling and flutter characteristic analysis of variable camber wing[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023 , 44(8) : 227346 -227346 . DOI: 10.7527/S1000-6893.2022.27346
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