Control Surface Flutter Characteristic Study Considering Aerodynamic Correction

Xiao Minghui; Xu Yan; He Shun; Gu Yingsong

doi:10.13433/j.cnki.1003-8728.20180176

Volume 37 Issue 10

Oct. 2018

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Article Navigation > Mechanical Science and Technology for Aerospace Engineering > 2018 > 37(10): 1624-1627

Xiao Minghui, Xu Yan, He Shun, Gu Yingsong. Control Surface Flutter Characteristic Study Considering Aerodynamic Correction[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(10): 1624-1627. doi: 10.13433/j.cnki.1003-8728.20180176

Citation:

Xiao Minghui, Xu Yan, He Shun, Gu Yingsong. Control Surface Flutter Characteristic Study Considering Aerodynamic Correction[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(10): 1624-1627. doi: 10.13433/j.cnki.1003-8728.20180176

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Control Surface Flutter Characteristic Study Considering Aerodynamic Correction

doi: 10.13433/j.cnki.1003-8728.20180176

1.
Chengdu Aircraft Industry(Group) Co. Ltd. Chengdu 610092, China;
2.
Institute of Structural Dynamics and Control, Northwestern Polytechnical University, Xi'an 710072, China

Received Date: 2018-05-11
Publish Date: 2018-10-05

Abstract

Abstract

Flutter characteristic analysis for the aeroelastic system with large control surface deflection at the trailing edge of a wing is studied, where airflow separation may occur. Computational fluid dynamics (CFD) technique is adopted to obtain the aerodynamic forces on the control surface with large deflection, then the aerodynamic forces obtained by doublet lattice method (DLM) are corrected by using these data from CFD, and finally wing flutter characteristics are obtained. Aerodynamic force corrections on control surface show no effect on the calculated flutter type of the aeroelastic system for the present model, in which the flutter type obtained with and without control surface aerodynamic correction is coupled flutter from both wing bending and outboard control surface deflection. The flutter speed obtained with aerodynamic correction is higher for the present model.
- flutter,
- computational fluid dynamics,
- aerodynamics,
- control surfaces,
- aeroelasticity

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References(15)

References

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