文献类型：期刊文献

中文题名：柔性尾长对尾鳍式压电泵的影响

英文题名：Influence from Length of Flexible Caudal-fin for Caudal-fin-type Piezoelectric Pump

作者：胡笑奇[1,2];张建辉[1];夏齐霄[3];黄俊[1];王守印[4];赵淳生[1]

第一作者：胡笑奇

通讯作者：Zhang, J.

机构：[1]南京航空航天大学机械结构力学及控制国家重点实验室;[2]丽水学院工学院;[3]北京联合大学机电工程学院;[4]中国科学院长春光学精密机械与物理研究所

第一机构：南京航空航天大学机械结构力学及控制国家重点实验室,南京210016

通讯机构：[1]State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

年份：2012

卷号：48

期号：8

起止页码：167-173

中文期刊名：机械工程学报

外文期刊名：Journal of Mechanical Engineering

收录：CSTPCD;;EI(收录号：20122415119591);Scopus(收录号：2-s2.0-84862015298);北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(51075201;90816003);国家重点实验室数字化制造装备与技术开放基金(DMETKF2009002)资助项目

语种：中文

中文关键词：无阀;压电泵;仿生;压电叠堆;柔性尾鳍

外文关键词：Valve-less Piezoelectric-pump Bionic Piezoelectric-stack Flexible caudal-fin

摘要：为克服传统的容积型无阀压电泵存在的流动波动大、有回流、泵水能力差等通病,提出并设计模仿鱼尾摆动的无阀泵,并针对具有柔性尾鳍的变截面摆动子进行研究。在研究巡游速度最大的金枪鱼尾鳍摆动的基础上,设计具有柔性尾鳍的变截面摆动子;基于有限元分析软件ANSYS进行摆动子在水中的谐响应分析,提取不同长度的柔性尾鳍工作在二阶谐振下的端部振幅,分析表明,摆动子端部振幅对泵的理论流量影响较大;利用电荷耦合器件(Charge coupled device,CCD)激光位移传感器对摆动子的端部振幅进行测量,柔性尾鳍长度为5 mm时,摆动子的二阶弯振端部振幅达到0.4 mm,端部振幅随柔性尾鳍长度变化的趋势和ANSYS分析结果一致;对泵进行试验研究:在60 V的电压的激励下,柔性尾鳍长度为5 mm时,泵的压差达到78 mm。研究表明,在摆动子的其他结构参数一定的情况下,泵的性能对柔性尾长较为敏感,并存在最优的柔性尾鳍长度值。
In order to overcome existing common faults of the traditional volumetric type valve-less pump,such as fluctuation,backflow and lack ability of pumping,a valve-less pump which imitates the swing of the caudal-fin is proposed.The researches on the variable-cross-section oscillating vibrator with flexible caudal-fin are carried out.Based on the study carried on the swing of the tuna which has high cruise speed,a variable cross-section vibrator with flexible caudle-fin is designed.The harmonic analysis of vibrator immerged in water is conducted with the ANSYS software.The tip amplitude of vibrator,which has different flexible caudal-fin length,is extracted when the vibrator operates in the second order bending mode.The analysis results suggest that the tip amplitude has great influence on the theoretical flow rate.Thirdly,the tip amplitude is measured utilizing a charge coupled device（CCD） laser displacement sensor.When the length of the flexible caudal-fin is 5 mm,the tip amplitude of second bending mode reaches 0.4 mm.Meanwhile,the trend of the tip amplitude,which varies with the length of the flexible caudal-fin,coincides with the result of simulation.Finally,the performance of the pump is tested experimentally：Driven by 60 V AC signals,the pressure head reaches 78 mm when the length of the flexible caudal-fin is 5 mm.This research reveals that when the other structure parameters are fixed,the length of the flexible caudal-fin determined the performance of the pump.