新型压电叠堆泵设计及仿真

Design and Simulation of a New Piezoelectric Stack Pump

为了实现工业泵的轻型化、小型化、简单化,提出了一种新型压电叠堆泵。阐述了压电叠堆的结构及工作原理,验证了压电叠堆的特性,建立了压电叠堆泵三维模型。基于ANSYS对压电叠堆、振动薄膜、入口阀片、出口阀片进行仿真分析。仿真结果显示:压电叠堆输出位移59.197μm,振动薄膜最大变形量0.33 mm,最大应力336.79 MPa,入口阀片变形量0.07 mm,最大应力211.69 MPa,出口阀片变形量0.05 mm,最大应力400.26 MPa,均满足理论计算值。仿真结果验证了新型压电叠堆泵设计合理,性能可靠。

A new type of piezoelectric stack pump had been proposed for the purpose of realizing lighter, smaller, and simpler industrial pumps. The structure and working principle of piezoelectric stack were described, and the characteristics of piezoelectric stack were verified. The three-dimensional model of piezoelectric stack pump was established. The piezoelectric stack, vibration film, inlet valve plate and outlet valve plate were simulated based on ANSYS. The simulation results showed that the output displacement of piezoelectric stack was 59.197 μm,and the maximum deformation of the vibration film was 0.33 mm with maximum stress of 336.79 MPa, and the deformation of inlet valve plate was 0.07 mm with maximum stress of 211.69 MPa, and the deformation of outlet valve plate was 0.05 mm with maximum stress of 400.26 MPa. All the above results satisfied the theoretical calculation. The simulation results verified that the design of the new piezoelectric stack pump was reasonable and reliable.