Aeroelastic Behavior of Morphing Wing in Flutter Regions

Yoo Yeon Jung; Ji Hwan Kim

doi:10.4028/www.scientific.net/AMM.284-287.442

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 284-287Aeroelastic Behavior of Morphing Wing in Flutter...

Aeroelastic Behavior of Morphing Wing in Flutter Regions

Abstract:

A morphing of a system is capable of changing the shape from the cruise to dash configurations. During the motion, the aerodynamic and structural characteristics can be varied tremendously, and the new shape will induce the different aeroelastic stability behavior. Thus, the purpose of this study is to investigate the flutter analysis of the folding wing structure including the effect of various parameters such as fold angles et al. of the composite laminates structures. For doing this these works, the aero-elastic analysis of folding wing is performed with respect to the parameters using PK method. Also, Finite Element Method is used in structural analysis, and Doublet Lattice Method is applied in aerodynamic analysis. Generally, the dynamic pressure and frequency during the flutter are sensitive to the structural characteristic, thus the flutter mode alteration is occurred by changed natural frequencies. Also, the alteration causes the flutter dynamic pressure variation. Therefore, results represent the aeroelastic stability variation due to the folding wing system including the effects of ply angles of composite laminates.

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Periodical:

Applied Mechanics and Materials (Volumes 284-287)

Pages:

442-445

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.284-287.442

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Online since:

January 2013

Authors:

Yoo Yeon Jung, Ji Hwan Kim

Keywords:

Composite Material, Flutter, Fold Wing Structure

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