积层式压电驱动器的有限元建模分析

该文利用有限元分析法对直动式压电伺服阀驱动元件-积层式压电驱动器的静、动态特性进行了深入的分析,建立了积层式压电驱动器多层压电结构的有限元模型,得到静态与动态工作的分析结果。理论分析的结果表明,积层式压电驱动器具有较大的输出位移与输出力,以及具有良好的动态响应特性,由其构造压电伺服阀,不会限制系统的频宽,结合合理的放大机构与阀体结构,有望达到高速、精密的伺服控制。

Modeling and Analysis of Laminated-type Piezoelectric Actuator Based on Finite Element

In this paper, finite element analysis of direct drive piezoelectric servo valve drive components-laminated type piezoelectric actuator of the static and dynamic characteristics of in-depth analysis.Established the laminated-type piezoelectric actuator structure of multi-layer piezoelectric finite element model to be static and dynamic analysis of the work results; theoretical analysis results show that the laminated-type piezoelectric actuator has a larger displacement and output force output, as well as with the good dynamic response characteristics, its structure piezoelectric.