光学精密工程2011，Vol.19Issue(6)：1334-1343,10.DOI:10.3788/OPE.20111906.1334
仿尾鳍式变截面摆动振子无阀压电叠堆泵的结构设计
Structure design of caudal-fin-type piezoelectric-stack pump with variable cross-section oscillating vibrator
摘要
Abstract
Based on a variable cross-section oscillating vibrator, a caudal-fin-type piezoelectric-stack pump with a high flow rate was proposed. Firstly, the caudal-fin-type variable cross-section oscillating vibrator, whose second order bending modal agrees with tuna's high cruise swing mode was designed by using the piezoelectric-stack as an excitation source. Then, FEM software ANSYS was used to analyze the modal shape of the vibrator and a better Y vibrator was presented. To prevent the uneven distribution of loading applied to the piezoelectric-stack and to avoid the damage of piezoelectric-stack , a steel ball and an isolation block were used as the media of forces and vibration to separate thepiezoelectric-stack from the water in a chamber. Furthermore, the mechanism of two-stage level/flexure-hinge was designed to amplify the tip amplitude of the vibrator. Finally, a prototype was designed and fabricated, and the experiments on measuring the flow rate varying with frequencies were performed. The experiment shows that the flow rate of the pump reaches 400 ml/min driven by AC voltage of 80 V under the frequency of 1 350 Hz. It concludes that the design can enhance the performance of the pump effectively, and meets the demand of the high flow rate valve-less pump in engineering practices.关键词
无阀压电泵；仿尾鳍式；变截面摆动振子；压电叠堆Key words
valve-less piezoelectric pump/caudal-fin-type/variable cross-section oscillating vibrator/piezoelectric-stack分类
机械制造引用本文复制引用
胡笑奇,张建辉,黄毅,夏齐霄,黄卫清..仿尾鳍式变截面摆动振子无阀压电叠堆泵的结构设计[J].光学精密工程,2011,19(6):1334-1343,10.基金项目
国家自然科学基金面上资助项目(No.50775109)；国家自然科学基金重点资助项目(No.50735002)；数字制造装备与技术国家重点实验室开放基金资助项目(No.DMETKF2009002) （No.50775109）
