压电合成射流激励器LEM方法研究

基于线性复合平板理论,将机-电-声等效方法应用于压电合成射流激励器,建立了激励器的集总参数模型(LEM).借助ANSYS软件和Matlab软件提取等效模型的关键参数,并使用Matlab软件对合成射流激励器的LEM模型进行了仿真.仿真结果与实验测试值进行了对比,两者吻合得较好.与传统仿真方法相比,所提出的LEM方法具有操作简单、耗时短、占用资源少和效率高等优点. 

Research of LEM on Piezoelectric Synthetic Jet Actuators

The piezoelectric synthetic jet actuator was studied and used widely for its simple structure and quick response characteristics. Mechano-electro-acoustical equivalent method was applied to piezoelectric-driven synthetic jet actuator and a lumped element model(LEM) was established based on the linear composite plate theory. ANSYS and Matlab software were used to extract some key model parameters and Matlab software was used to simulate the LEM circuit. Simulation results show a good agreement with experimental results. Compared with the traditional numerical simulation method with CFD software, the method in this paper is easier, more time-saving, less resources consuming and higher efficiency.