Flutter response characteristics of composite curved panels based on POD method

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (1) : 38-44.

ZHOU Jian1, YANG Zhichun2

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Abstract

The equations of motion for nonlinear flutter of curved composite panels were developed with the finite element method. The reduced order modes constructed with the proper orthogonal decomposition (POD) method were used in reducing the order of these equations, and the equations of motion were transformed into a reduced nonlinear system under the POD modal coordinates, then the reduced equations were solved in time domain by using the numerical integration method. Compared with the results calculated using the traditional modal reduction method, the results using POD method based on reduced order models agreed well with the former, and also saved the computation time greatly.

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curved panel / panel flutter / proper orthogonal decomposition

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ZHOU Jian1, YANG Zhichun2. Flutter response characteristics of composite curved panels based on POD method[J]. Journal of Vibration and Shock, 2017, 36(1): 38-44

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