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In this paper, we investigate nonlinear dynamic behaviors of a piezoelectric plate. By the methods of boundary integration and modal truncation, the partial differential equation governing the vibration of piezoelectric plates has been derived. The piezoelectric resonator is described as a parametrically excited nonlinear vibration system. The calculations based on the coupled-mode equations based...
Because of belonging to the information of system condition, the noise degree of signal could be utilized to express the difference of system condition. After obtaining the symbolic probability series by the signal time series, the symbol-chaos characteristics, which could identify the noise degree of signal, are constructed with the four parameters that are symbolic Shannon entropy, symbolic Kolmogorov...
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