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Numerical Simulation Research on Static Aeroelastic Effect of the Transonic Aileron of a High Aspect Ratio Aircraf

Hongtao Guo, Changrong Zhang, Binbin Lv, Li Yu*

Institute of High Speed Aerodynamics, China Aerodynamics Research and Development Center, Mianyang, 621000, China

* Corresponding Author: Li Yu. Email: email

(This article belongs to this Special Issue: Vibration Control and Utilization)

Computer Modeling in Engineering & Sciences 2022, 132(3), 991-1010.


The static aeroelastic effect of aircraft ailerons with high aspect ratio at transonic velocity is investigated in this paper by the CFD/CSD fluid-structure coupling numerical simulation. The influences of wing static aeroelasticity and the ‘scissor opening’ gap width between aileron control surface and the main wing surface on aileron efficiency are mainly explored. The main purpose of this paper is to provide technical support for the wind tunnel experimental model of aileron static aeroelasticity. The results indicate that the flight dynamic pressure has a great influence on the static aeroelastic effect of ailerons, and the greater the dynamic pressure, the lower the aileron efficiency. Aileron deflection causes asymmetric elastic deformation of the main wing surfaces of the left and right wings. The torque difference caused by the load distribution on the main wing surface offsets the rolling torque generated by the aileron. This results in a significant reduction in aileron efficiency, and it is noticeable that it is not the elastic deformation of the aileron itself or the reduction in effective deflection that leads to the reduction in rolling control efficiency. Under typical transonic conditions, the rolling control torque of the aileron can be reduced by more than 25%, in the range of 2.5–10 mm, and the ‘scissor opening’ gap width of the aileron has almost no influence on its static aeroelastic effect.


Cite This Article

Guo, H., Zhang, C., Lv, B., Yu, L. (2022). Numerical Simulation Research on Static Aeroelastic Effect of the Transonic Aileron of a High Aspect Ratio Aircraf. CMES-Computer Modeling in Engineering & Sciences, 132(3), 991–1010.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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