Based on the equivalent elasticity method, the plane coupling vibration of a rectangular piezoelectric ceramic plate was studied and the resonantfrequency equation was derived out.
利用等效弹性法分析了压电矩形共振器的二维耦合振动，导出了振子共振频率的解析表达式。
2
Vibration characteristics of the packaging system are the basis for studying its resonantfrequency and dynamic load during vibration.
包装系统的振动特性是研究其共振频率和振动过程中所受动态载荷的基础。
3
The mounting resonantfrequency of vibration measurement system formed with piezoelectric acceleration sensor YD-1 and mounted magnetic base CZ-4 is addressed.