机械制造与自动化2025，Vol.54Issue(3)：48-51,4.DOI:10.19344/j.cnki.issn1671-5276.2025.03.009
对称驱动式层叠压电泵的设计
Design of Symmetrical Drive Laminated Piezoelectric Pump
郝云锋 1石树正 1吴慧强 1张兰娣1
作者信息
- 1. 河北建筑工程学院机械工程学院,河北 张家口 075000
- 折叠
摘要
Abstract
Piezoelectric pump is a new microfluidic conveying instrument which realizes directional flow of liquid by using inverse piezoelectric effect of piezoelectric materials.To address the problems of limited output capacity due to very small deformation of piezoelectric material and the low conventional piezoelectric pump operating frequency leading to failure in takeing full advantage of the high power density of piezoelectric materials at high frequency,a novel laminated double-cavity parallel piezoelectric pump is developed by using flexure hinge displacement amplifying mechanism to amplify the output displacement of piezoelectric ceramics which drives two piezoelectric positive pumps symmetrically.Through finite element analysis,the flexible hinge amplifying mechanism and the simple model of the piezoelectric pump are simulated.The results show that the magnification of the flexible hinge displacement amplifying mechanism can reach 4.2,and the working frequency of the piezoelectric pump can be as high as 4 218 Hz under the symmetric driving condition,which greatly improves the theoretical working frequency of the piezoelectric pump.关键词
柔性铰链/压电堆栈/并联/压电泵Key words
flexure hinge/piezoelectric stack/in parallel/piezoelectric pump分类
信息技术与安全科学引用本文复制引用
郝云锋,石树正,吴慧强,张兰娣..对称驱动式层叠压电泵的设计[J].机械制造与自动化,2025,54(3):48-51,4.
