Weitere Artikel dieser Ausgabe durch Wischen aufrufen
Supported by National Natural Science Foundation of China (Grant No. 51305439) and Jiangsu Provincial Natural Science Foundation of China (Grant No. BK20141205).
A piezoelectric centrifugal pump was developed previously to overcome the low frequency responses of piezoelectric pumps with check valves and liquid reflux of conventional valveless piezoelectric pumps. However, the electro-mechanical-fluidic analysis on this pump has not been done. Therefore, multi-field analysis and experimental verification on piezoelectrically actuated centrifugal valveless pumps are conducted for liquid transport applications. The valveless pump consists of two piezoelectric sheets and a metal tube with piezoelectric elements pushing the metal tube to swing at the first bending resonant frequency. The centrifugal force generated by the swinging motion will force the liquid out of the metal tube. The governing equations for the solid and fluid domains are established, and the coupling relations of the mechanical, electrical and fluid fields are described. The bending resonant frequency and bending mode in solid domain are discussed, and the liquid flow rate, velocity profile, and gauge pressure are investigated in fluid domain. The working frequency and flow rate concerning different components sizes are analyzed and verified through experiments to guide the pump design. A fabricated prototype with an outer diameter of 2.2 mm and a length of 80 mm produced the largest flow rate of 13.8 mL/min at backpressure of 0.8 kPa with driving voltage of 80 Vpp. By solving the electro-mechanical-fluidic coupling problem, the model developed can provide theoretical guidance on the optimization of centrifugal valveless pump characters.
Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten
Sie möchten Zugang zu diesem Inhalt erhalten? Dann informieren Sie sich jetzt über unsere Produkte:
A K Au, H Y Lai, B R Utela, et al. Microvalves and micropumps for BioMEMS. Micromachines, 2011, 2(2): 179–220.
B Iverson, S V Dgarimella. Recent advances in microscale pumping technologies: a review and evaluation. Microfluidics and Nanofluidics, 2008, 5(2): 145–174.
H K Ma, W F Luo, J Y Lin. Development of a piezoelectric micropump with novel separable design for medical applications. Sensors and Actuators A: Physical, 2015, 236: 57–66.
Z H Zhang, J W Kan, G M Cheng, et al. A piezoelectric micropump with an integrated sensor based on space-division multiplexing. Sensors and Actuators a- Physical, 2013, 203: 29–36.
Y Wei, R Torah, K Yang, et al. A novel fabrication process to realize a valveless micropump on a flexible substrate. Smart Materials and Structures, 2014, 23(2): 025034.
Z Zhang, J Kan, S Wang, et al. Effects of driving mode on the performance of multiple-chamber piezoelectric pumps with multiple actuators. Chinese Journal of Mechanical Engineering, 2015, 28(5): 954–963.
H T G Vanlintel, F C M Vandepol, S Bouwstra. A piezoelectric micropump based on micromachining of silicon. Sensors and Actuators, 1988, 15(2): 153–167.
E Stemme, G A Stemme, Valveless diffuser/nozzle-based fluid pump. Sensors and Actuators a- Physical, 1993, 39(2): 159–167.
J G Smith. Piezoelectric micropump with 3 valves working peristaltically. Sensors and Actuators a- Physical, 1990, 21(1–3): 203–206.
Y Bar-cohen, Z S Chang. Piezoelectrically actuated miniature peristaltic pump. Proceedings of SPIE Smart Structures and Materials 2001: Smart Structures and Integrated Systems, Newport Beach, CA, USA, March 4, 2001: 425–432.
J Kang, G W Kauner. Simulation and verification of a piezoelectrically actuated diaphragm for check valve micropump design. Sensors and Actuators a- Physical, 2011, 167(2): 512–516.
F Goldschmidtboing, A Doll, M Heinrichs, et al. A generic analytical model for micro-diaphragm pumps with active valves. Journal of Micromechanics and Microengineering, 2005, 15(4): 673–683.
J Huang, J Zhang, X Xun, et al. Theory and experimental verification on valveless piezoelectric pump with multistage Y-shape treelike bifurcate tubes. Chinese Journal of Mechanical Engineering, 2013, 26(3): 462–468.
J Huang, J Zhang, S Wang, et al. Analysis of the flow rate characteristics of valveless piezoelectric pump with fractal-like Y-shape branching tubes. Chinese Journal of Mechanical Engineering, 2014, 27(3): 628–634.
J Huang, J Zhang, W Shi, et al. 3D FEM analyses on flow field characteristics of the valveless piezoelectric pump. Chinese Journal of Mechanical Engineering, 2016, 29(4):1-7.
Y Wang, J Hsu, P Kuo, et al. Loss characteristics and flow rectification property of diffuser valves for micropump applications. International Journal of Heat and Mass Transfer, 2009, 52(1–2): 328–336.
E Sayar, B Farouk. Multifield analysis of a piezoelectric valveless micropump: effects of actuation frequency and electric potential. Smart Materials and Structures, 2012, 21(7): 075002.
Y Hsu, J Li, N Le. An experimental and numerical investigation into the effects of diffuser valves in polymethylmethacrylate (PMMA) peristaltic micropumps. Sensors and Actuators a- Physical, 2008, 148(1): 149–157.
X Leng, J Zhang, Y Jiang, et al. Simulation analysis and experimental verification of spiral-tube-type valveless piezoelectric pump with gyroscopic effect. Chinese Journal of Mechanical Engineering, 2014, 27(4): 822–829.
A F Tabak, S Yesilyurt. Simulation-based analysis of flow due to traveling-plane-wave deformations on elastic thin-film actuators in micropumps. Microfluidics and Nanofluidics, 2008, 4(6): 489– 500.
D G Lee, S Or, G P Wcarman. Design of a piezoelectric- hydraulic pump with active valves. Journal of Intelligent Material Systems and Structures, 2004, 15(2): 107–115.
G J Liu, C L Shen, Z G Yang, et al. A disposable piezoelectric micropump with high performance for closed-loop insulin therapy system. Sensors and Actuators a- Physical, 2010, 163(1): 291–296.
A M Cardenas-valencia, J Dlutowski, J Bumgarner, et al. Development of various designs of low-power, MEMS valves for fluidic applications. Sensors and Actuators A: Physical, 2007, 136(1): 374–384.
M Seong, K P Mohanchandra, Y Lin, et al. Development of a high flow-rate/high operating frequency nitinol MEMS valve. Proceeding of SPIE, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, San Diego, California, March 09, 2008: 69322F.
Y T Ma, F R Kong, C L Pan, et al. Miniature tubular centrifugal piezoelectric pump utilizing wobbling motion. Sensors and Actuators a- Physical, 2010, 157(2): 322–327.
N N Rogacheva, C C Chung, S H Chang. Electromechanical analysis of a symmetric piezoelectric/elastic laminate structure: theory and experiment. IEEE Trans Ultrason Ferroelectr Freq Control, 1998, 45(2): 285–294.
Q F Cui, C L Liu, X F Zha. Study on a piezoelectric micropump for the controlled drug delivery system. Microfluidics and Nanofluidics, 2007, 3(4): 377–390.
- Multi-Field Analysis and Experimental Verification on Piezoelectric Valve-Less Pumps Actuated by Centrifugal Force
- Chinese Mechanical Engineering Society
in-adhesives, MKVS, Hellmich GmbH/© Hellmich GmbH, Zühlke/© Zühlke