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Single-frequency nonlinear vibrations of antisymmetric angle-ply laminated plates
Goran Janevski
In this paper single-frequency vibrations of antisymmetric angle-ply laminated rectangular plates freely supported along the edges are analysed. By using Krylov-Bogolyubov-Mitropol’skij’s method, the asymptotic approximation of the two-parameter family of solutions in the first approximation is given. A numerical example includes the analysis of single-frequency plate vibrations in stationary and non-stationary conditions under the activity of time-dependence outer impulses. Amplitude-frequency and phase-frequency characteristics of the plate in stationary and non-stationary conditions for different laminate characteristics are presented graphically.
Key words: nonlinear vibrations, laminated composite, asymptotic method, amplitude, phase, single-frequency. |