Abstract
This paper deals with nonlinear vibration of a continuum system with gaps under random waves considered collision phenomena. In order to investigate this nonlinear vibration characteristic, experiments are made with an experimental apparatus consisting of a nonlinear vibration system. The 1.6mm and 2.3mm thick plates are used for the collision phenomena experiments. Moreover, an analytical model of the cubic equation is proposed based on the restoring force characteristics in the experiments. This analytical model is used for the simulation analysis, and the results are compared with the experimental results. In the analysis, the dissipation energy is replaced with an equivalent viscous damping ratio. The simulations are calculated by using this modified analysis. Consequently, the R.M.S. values of the simulation analysis results showed nearly value with the R.M.S. values of the experimental results. Moreover, the R.M.S. values of the simulation analysis result and the experimental result showed the further nearer value by amending analysis method.
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