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Nonlinear Dynamics of Composite Laminated Circular Cylindrical Shell with Membranes in Thermal Environment

机译:热环境下膜复合层合圆柱壳的非线性动力学。

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This paper is focused on the chaotic dynamics of a composite laminated circular cylindrical shell with radially pre-stretched membranes at both ends and clamped along a generatrix. Based on the two-degree-of-freedom non-autonomous nonlinear equations of this system, the method of multiple scales is employed to obtain the four-dimensional nonlinear averaged equation. The resonant case considered here is the primary parametric resonance-1/2 subharmonic resonance and 1:1 internal resonance. Corresponding to several selected parameters, the periodic and chaotic motions of the composite laminated circular cylindrical shell clamped along a generatrix are demonstrated by the bifurcation diagrams, the maximum Lyapunov exponents, the phase portraits, the waveforms, the power spectrums and the Poincare map. The temperature parameter excitation shows that the Pomeau-Manneville type intermittent chaos occur under the certain initial conditions. It is also found that there exist the twin phenomena between the Pomeau-Manneville type intermittent chaos and the period-doubling bifurcation.
机译:本文着重于复合层压圆柱壳的混沌动力学,该复合壳的两端均具有径向预拉伸膜并沿母线夹紧。基于该系统的两自由度非自治非线性方程组,采用多尺度方法获得了二维非线性平均方程组。这里考虑的共振情况是主要的参数共振-1/2次谐波共振和1:1内部共振。对应于几个选定的参数,通过分叉图,最大李雅普诺夫指数,相图,波形,功率谱和庞加莱图证明了沿母线夹紧的复合叠层圆柱壳的周期性和混沌运动。温度参数的激励表明,在某些初始条件下,出现了Pomeau-Manneville型间歇性混沌。还发现,在Pomeau-Manneville型间歇性混沌与周期倍增分叉之间存在孪生现象。

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