Nonlinear Dynamic Responses of a Honeycomb Sandwich Plate Subject to Transverse Excitations

Nonlinear Dynamic Responses of a Honeycomb Sandwich Plate Subject to Transverse Excitations

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Nonlinear dynamic behaviors of a simply supported honeycomb sandwich plate subjected Lipstick Duo to the transverse excitations are investigated in this paper.Based on the classical thin plate theory and Von Karman large deformation theory, the governing equation of motion for the honeycomb sandwich plate is established by using the Hamilton principle.The nonlinear governing partial differential equation is discretized to the ordinary differential equations by differential quadrature method and then solved by Runge-Kutta-Fehlberg method.Based on the numerical simulations, combined Medical and Ambulatory supplies / Diagnostic Instruments and Supplies with nonlinear dynamic theory, the influences of the frequency and amplitude of the transverse excitation are investigated respectively by using the bifurcation diagrams, Poincare maps and phase portraits.

The results exhibit the existence of the period-1, period-2 and chaotic responses with the variation of the excitations, which demonstrate that those motions appear alternately.