Piezoelectric hydraulic pump with innovative active valves

被引：3

作者：

Lee, DG ^{[1
]}

Or, SW ^{[1
]}

O'Neill, C ^{[1
]}

Carman, GP ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA

来源：

SMART STRUCTURES AND MATERIALS 2002: SMART STRUCTURES AND INTEGRATED SYSTEMS | 2002年 / 4701卷

关键词：

piezoelectric hydraulic pump; diaphragm; piezoelectric stack actuator; unimorph disc valves; finite element analyses; CFD;

D O I：

10.1117/12.474689

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The development of a piezoelectric hydraulic pump with innovative active valves is presented in this study. The pump structure basically consists of a diaphragm type piezoelectric stack actuator and two specially designed unimorph disc valves acting as inlet and delivery valves. Static and dynamic piezoelectric finite element analyses were used to maximize the delivered fluid volume per stroke and to predict the resonance characteristics of the pump, respectively. A structural optimization technique was performed to optimize the efficiency of the pump versus its geometrical dimensions. A transient CFD model was used to predict flow rates. Dynamic experiments were also conducted and results are in good agreement with those obtained from the simulation.

引用

页码：530 / 536

页数：7

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