文献类型：期刊文献

英文题名：Theory and experiment of the valveless piezoelectric pump with rotatable unsymmetrical slopes

作者：Zhang, Jianhui[1]; Xia, Qixiao[2]; Zhao, Chunsheng[1]; Jin, Jiamei[1]

第一作者：Zhang, Jianhui

通讯作者：Zhang, J.

机构：[1] Precision Driving Laboratory, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; [2] College of Mechanical and Electronic Engineering, Beijing Union University, Beijing 100020, China

第一机构：Precision Driving Laboratory, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

年份：2011

起止页码：1343-1347

外文期刊名：Progress in Electromagnetics Research Symposium

收录：EI(收录号：20115214636038)

语种：英文

外文关键词：Mixing - Steel beams and girders - Fluid mechanics - Piezoelectricity - Pumps

摘要：With no relative motion at joint, no internal contamination, low manufacturing cost, and easy to microminiaturization, the valveless piezoelectric pump has unrivaled application in one-time use and miniaturization. However, the microminiaturization of the pump itself cannot microminiaturize the whole system including the pump. Thus, this paper focuses on how to integrate mixing and transport of piezoelectric liquid. Furthermore, the difficult and challenging issues of the ratio of mixing fluid and composition control are also discussed. The valveless piezoelectric pump with rotatable unsymmetrical slopes is put forward under this background. Its major features are setting drive and transfer in one, also setting transfer and mixing in one. Firstly, the design of the valveless piezoelectric pump with rotatable unsymmetrical slopes is proposed and the one-way flow principle is analyzed. Then, the fluid mechanics model of the valveless piezoelectric pump with rotatable unsymmetrical slopes is established. Meanwhile, the flow numerical analysis and calculation of the pump cavity are done. Finally, the experiments on relationship between the rotation angles of the slope and the flow rate and slope angles of rotation and the two inlets flow ratio are conducted. The experimental results show that: the maximum flow reaches 32.32 ml/min. The maximum relative error between the theoretical results and the experimental ones is 14.59%. According to the curve indicating the rotating different angles of rotatable unsymmetrical slopes to the flow ratio of the two inlets, the experimental and theoretical maximum relative error is 3.75%. Thus, the principle feasibility of the valveless piezoelectric pump with rotatable unsymmetrical slopes and the theory reliability are verified and proven.