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。
The differential equations of nonlinear vibration of the shell were obtained.
建立了正弦波纹扁球壳的非线性强迫振动微分方程；
In a rotor bearing system geared, there are several nonlinear factors that may cause nonlinear vibration.
在齿轮耦合的转子—轴承系统中，有多种因素使系统产生非线性振动。
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