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Nonlinear dynamic analysis of large fiber composite laminated shells

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Document pages: 17 pages

Abstract: In this paper, the nonlinear dynamic analysis of multi-layer piezoelectric macro fiber composite (MFC) laminated shell is carried out. The effects of Transverse Excitation and piezoelectric characteristics on structural dynamic stability are studied. Firstly, the nonlinear dynamic model of MFC laminated shell is established. Based on the known selected geometric and material properties, the electric field of MFC is given. The vibration mode function is obtained according to the boundary conditions, and then the partial differential equation is transformed into two nonlinear ordinary differential equations by Galerkin method. Secondly, the influence of Transverse Excitation on the nonlinear vibration of MFC laminated shells is numerically analyzedimulation and moderating effects of piezoelectric coefficients on the stability of the system are also presented here. Bifurcation diagram, two-dimensional and three-dimensional phase portraits, waveforms phases, and Poincare diagrams are shown to find different kinds of periodic and chaotic motions of MFC shells. The results indicate that piezoelectric parameters have strong effects on the vibration control of the MFC laminated shell.

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