可压缩压电泵流体腔的模拟分析与性能测试

Simulation Analysis and Performance Test of a Compressible Piezoelectric Pump Fluid Cavity.

作者信息

Liu Xia, Wang Tongyu, Wang Hu, Hou Jun, Liu Jinlong, Lin Jiaying, Li Shenfang, Wang Zhicong, Tian Xiaochao, Yang Zhigang

机构信息

School of Mechatronical Engineering, Changchun University of Science and Technology, Changchun 130022, China.

School of Mechanical and Vehicle Engineering, Changchun University, Changchun 130022, China.

出版信息

Micromachines (Basel). 2022 Jul 13;13(7):1100. doi: 10.3390/mi13071100.

DOI:10.3390/mi13071100

PMID:35888917

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9318679/

Abstract

The large load loss of piezoelectricity pumps leads to fluid energy in the fluid chamber during fluid transportation. In this paper, the output performance of a piezoelectricity pump is improved by changing the structure parameters of the fluid chamber to reduce the fluid load. The mechanism of fluid flow energy loss in the body cavity of hydraulic pumps is simulated and analyzed, and the influence of the dimensions of the inlet and outlet valves and the height of the cavity on fluid energy loss is obtained. The flow rate and pressure of inlet and outlet valves with different cavity heights and different driving frequencies are obtained. The results show that the flow rate and output pressure of the hydraulic pump are optimized when the cavity height is 3 mm, and the inlet and outlet valve diameters are 2.5 mm.

摘要

压电泵的大负载损失会导致在流体输送过程中流体腔内的流体能量损失。本文通过改变流体腔的结构参数来降低流体负载，从而提高压电泵的输出性能。对液压泵体腔内流体流动能量损失的机理进行了模拟分析，得出了进出口阀尺寸和腔体高度对流体能量损失的影响。得到了不同腔体高度和不同驱动频率下进出口阀的流量和压力。结果表明，当腔体高度为3mm，进出口阀直径为2.5mm时，液压泵的流量和输出压力得到优化。