To predict the resonant frequency and output power of a vibration-based piezoelectric generator,Roundy et al established the model of the cantilever piezoelectric generator by using the deflection at the end of the cantilever as the degree of freedom.
为了预测振动式压电发电机的谐振频率和输出功率等参数,Roundy等以悬臂梁末端挠度为自由度,建立了发电机的理论模型,但该模型忽略了质量块中心挠度与悬臂梁末端挠度的差异,在质量块长度较大时有较大误差。
In this paper,a piezoelectric vibration-based power generator is designed and the mathematical model of the cantilever piezoelectric generator used in rotary mechines is established.
振动式压电发电机是一种可为旋转机械故障诊断中的无线传感节点供电的微能源。