Stability Analysis of a Flutter Panel with Axial Excitations | Zendy

Meng Peng | Zendy; Hans DeSmidt | Zendy

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Stability Analysis of a Flutter Panel with Axial Excitations

Author(s) -

Meng Peng,

Hans DeSmidt

Publication year - 2016

Publication title -

advances in acoustics and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.237

H-Index - 14

eISSN - 1687-627X

pISSN - 1687-6261

DOI - 10.1155/2016/7194764

Subject(s) - flutter , floquet theory , aerodynamics , parametric statistics , excitation , parametric oscillator , perturbation (astronomy) , instability , mathieu function , plane (geometry) , vibration , mechanics , stability (learning theory) , physics , structural engineering , engineering , mathematics , mathematical analysis , acoustics , computer science , nonlinear system , geometry , optics , statistics , quantum mechanics , machine learning

This paper investigates the parametric instability of a panel (beam) under high speed air flows and axial excitations. The idea is to affect out-of-plane vibrations and aerodynamic loads by in-plane excitations. The periodic axial excitation introduces time-varying items into the panel system. The numerical method based on Floquet theory and the perturbation method are utilized to solve the Mathieu-Hill equations. The system stability with respect to air/panel density ratio, dynamic pressure ratio, and excitation frequency are explored. The results indicate that panel flutter can be suppressed by the axial excitations with proper parameter combinations

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