Global Dynamics of a Compressor Blade with Resonances

Xiaoxia Bian, Fangqi Chen and Fengxian An

Mathematical Problems in Engineering, 2016, vol. 2016, 1-12

Abstract:

The global bifurcations and chaotic dynamics of a thin-walled compressor blade for the resonant case of 2 : 1 internal resonance and primary resonance are investigated. With the aid of the normal theory, the desired form associated with a double zero and a pair of pure imaginary eigenvalues for the global perturbation method is obtained. Based on the simpler form, the method developed by Kovacic and Wiggins is used to find the existence of a Shilnikov-type homoclinic orbit. The results obtained here indicate that the orbit homoclinic to certain invariant sets for the resonance case which may lead to chaos in the sense of Smale horseshoes for the system. The chaotic motions of the rotating compressor blade are also found by using numerical simulation.

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:3275750

DOI: 10.1155/2016/3275750

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