Abstract
Nonlinear oscillations of viscoelastic simply supported rectangular plates are studied by assuming the Voigt–Kelvin constitutive model. Using Hamilton's principle in conjunction with the kinematics associated with Kirchhoff's plate model, the governing equations of motion including the effect of damping are represented in terms of the transversal deflection and a stress function. Utilizing the Bubnov–Galerkin method, the nonlinear partial differential equations are reduced to an ordinary differential equation which is studied geometrically by approximate construction of the Poincaré maps. Explicit expressions are given for periodic solutions.
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Esmailzadeh, E., Jalali, M.A. Nonlinear Oscillations of Viscoelastic Rectangular Plates. Nonlinear Dynamics 18, 311–319 (1999). https://doi.org/10.1023/A:1026452007472
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DOI: https://doi.org/10.1023/A:1026452007472