Based on the basic equations of free vibration of thin plate, the Hamilton canonical equations were obtained.
根据弹性薄板自由振动问题的基本方程，把问题引入到哈密顿对偶体系中。
According to the elastic thin plate theory and vibration theory, a boundary element method (BEM) was used to analyze the frequency characteristics of a thin plate in lateral free vibration.
根据弹性薄板理论和振动理论，运用边界元法(BEM)分析了薄板弯曲自由振动的频率特性。
The essay analyses the nonlinear vibration of an annular thin plate.
本文分析研究了环形薄圆板的非线性振动问题。
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