Wing Flutter Analysis Parameters during Flight

Wei Long; Yan Liu; Jia Ming Cao

doi:10.4028/www.scientific.net/AMM.722.93

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 722Wing Flutter Analysis Parameters during Flight

Wing Flutter Analysis Parameters during Flight

Abstract:

This paper adapts finite element analysis of dynamic structure to analysis airfoil based on the phenomenon that torsion coupling may happen to airfoil during flying,, which verifies flutter mechanism of swing under subsonic and transonic condition. Modal frequency error can be changed into stiffness error by error analysis. The errors of bending and torsion frequency are verified by adjusting stiffness and mass distribution. Meanwhile the concept of modal strain energy is introduced to character and identify different positions and structures of damages.

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Periodical:

Applied Mechanics and Materials (Volume 722)

Pages:

93-96

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.722.93

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Online since:

December 2014

Authors:

Wei Long, Yan Liu*, Jia Ming Cao

Keywords:

Error Correction, Flutter, Modal Analysis, Structural Damage

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