A biomimetic piezoelectric pump: Computational and experimental characterization

Lima, Cícero R. de; Vatanabe, Sandro L.; Choi, Andres; Nakasone, Paulo H.; Pires, Rogério F.; Silva, Emilío Carlos Nelli

doi:10.1016/j.sna.2009.02.038

Cited by 57 publications

(44 citation statements)

References 23 publications

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“…These experimental results are quite similar in trend with those obtained by Lima et al (2009) in characterizing their biomimetic piezoelectric pump developed using bimorph actuator. This behavior indicates a guideline that this type of pumping device should be operated at optimal frequency to obtain higher Dp.…”

Section: Distribution Of Pressure Head With Variation Of Frequencysupporting

confidence: 86%

“…Provided the other parameters remain constant, the amplitude of displacement is proportional to voltage only. We assume that the acoustic streaming velocity is linearly proportional to the displacement, the corresponding Dp should thus be linearly related to V. (Similar relation has been also observed in the case of bimorph piezoelectric actuator pump, where generally the static pressure head generated by the piezoelectrically actuated pump depends directly on the amplitude of actuator tip displacement (Lima et al 2009)). Hence, Dp increases linearly as the voltage increases at a constant f.…”

Section: Effect Of Electrical Voltage (V) On Static Pressure Head (Dp)mentioning

confidence: 65%

“…The operational principle is based on the motion of the piezoelectrically actuated pump membrane and flow rectifying properties of the diffuser/nozzle element or truncated pyramid-shaped microchannels to mimic the operation of check valves. A flow pump using bimorph piezoelectric actuator to generate flow in both liquid (Lima et al 2009) and air has been investigated by several researchers (Acikalin et al 2004;Basak et al 2005;Kim et al 2004). On the other hand, several studies have been published on generating acoustic streaming flow using piezoelectric actuator or other transducers (Hashimoto et al 1997;Rife et al 2000) as well.…”

Section: Introductionmentioning

confidence: 99%

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A dynamic piezoelectric micropumping phenomenon

Ali

Kuang

Khan

et al. 2009

Microfluid Nanofluid

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A dynamic micropumping phenomenon has been observed, which is based on acoustic streaming generated by a piezotransducer actuated in d 31 mode without check valve. The use of d 31 mode of a piezoelectric microtransducer can significantly enhance the pumping performance for application in miniaturization. Experimental study of the maximum local velocity has been conducted to investigate the effect of actuator tip configuration on the micropumping performance. In addition, this study also shows the quantitative measurement of the pumping performance such as the pressure head generated as a function of different relevant parameters like applied electrical field, AC frequency, and length of the actuator.

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Section: Distribution Of Pressure Head With Variation Of Frequencysupporting

confidence: 86%

Section: Effect Of Electrical Voltage (V) On Static Pressure Head (Dp)mentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A dynamic piezoelectric micropumping phenomenon

Ali

Kuang

Khan

et al. 2009

Microfluid Nanofluid

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“…Although most micropumps have complex structures and a high level of power consumption, piezoelectric actuation has the advantages of a relatively simple structure, short response time and relatively low power consumption [3,9,10]. Typically, piezoelectrically-actuated pumps use a piezoelectric actuator to move a membrane in a chamber providing fluid delivery with the flow direction being controlled by check valves [11,12]. Applications can be found from micro-dosing drug administration to propelling microspacecraft [13,14,15,16,17].…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization a Single-Active-Chamber Piezoelectric Membrane Pump with Multiple Passive Check Valves

Zhang

Feng

et al. 2016

Sensors

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In order to prevent the backward flow of piezoelectric pumps, this paper presents a single-active-chamber piezoelectric membrane pump with multiple passive check valves. Under the condition of a fixed total number of passive check valves, by means of changing the inlet valves and outlet valves’ configuration, the pumping characteristics in terms of flow rate and backpressure are experimentally investigated. Like the maximum flow rate and backpressure, the testing results show that the optimal frequencies are significantly affected by changes in the number inlet valves and outlet valves. The variation ratios of the maximum flow rate and the maximum backpressure are up to 66% and less than 20%, respectively. Furthermore, the piezoelectric pump generally demonstrates very similar flow rate and backpressure characteristics when the number of inlet valves in one kind of configuration is the same as that of outlet valves in another configuration. The comparison indicates that the backflow from the pumping chamber to inlet is basically the same as the backflow from the outlet to the pumping chamber. No matter whether the number of inlet valves or the number of outlet valves is increased, the backflow can be effectively reduced. In addition, the backpressure fluctuation can be significantly suppressed with an increase of either inlet valves or outlet valves. It also means that the pump can prevent the backflow more effectively at the cost of power consumption. The pump is very suitable for conditions where more accurate flow rates are needed and wear and fatigue of check valves often occur.

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“…In previous paper, authors presented an investigation, analysis, and characterization of a novel pump configuration based on placing an oscillating bimorph piezoelectric actuator in a fluid (water) to generate flow (Lima et al, 2009). The principle of pumping, proposed by authors, mimics a phenomenon of the swimming fish (Sfakiotakis et al, 1999;Videler et al, 1999), through an oscillatory motion generated by a thin plate oscillating inside a fluid environment.…”

Section: Introductionmentioning

confidence: 99%

Design and Characterization of a Biomimetic Piezoelectric Pump Inspired on Group Fish Swimming Effect

Vatanabe

Choi

Lima

et al. 2009

Journal of Intelligent Material Systems and Structures

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Flow pumps are important tools in several engineering areas, such as in the fields of bioengineering and thermal management solutions for electronic devices. Nowadays, many of the new flow pump principles are based on the use of piezoelectric actuators, which present some advantages such as miniaturization potential and lower noise generation. In previous work, authors presented a study of a novel pump configuration based on placing an oscillating bimorph piezoelectric actuator in water to generate flow. It was concluded that this oscillatory behavior (such as fish swimming) yields vortex interaction, generating flow rate due to the action and reaction principle. Thus, following this idea the objective of this work is to explore this oscillatory principle by studying the interaction among generated vortex from two bimorph piezoelectric actuators oscillating inside the same pump channel, which is similar to the interaction of vortex generated by frontal fish and posterior ones when they swim together in a group formation. It is shown that parallelseries configurations of bimorph piezoelectric actuators inside the same pump channel provide higher flow rates and pressure for liquid pumping than simple parallelseries arrangements of corresponding single piezoelectric pumps, respectively. The scope of this work includes structural simulations of bimorph piezoelectric actuators, fluid flow simulations, and prototype construction for result validation.

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A biomimetic piezoelectric pump: Computational and experimental characterization

Cited by 57 publications

References 23 publications

A dynamic piezoelectric micropumping phenomenon

A dynamic piezoelectric micropumping phenomenon

Development and Characterization a Single-Active-Chamber Piezoelectric Membrane Pump with Multiple Passive Check Valves

Design and Characterization of a Biomimetic Piezoelectric Pump Inspired on Group Fish Swimming Effect

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