Design of Micropump with two stacked ring type piezoelectric actuators for drug delivery

Sravani, K. Girija; Ramakrishna, Desala; Chandh, Prakash; Sathvik, Kuncham; Rao, K. Sambasiva

doi:10.1007/s12213-022-00146-1

Cited by 4 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 2022, at least two more research teams have contributed to this area. Under the leadership of Sravani et al, 11 a design was developed focusing on the use of a stacked style of single layer piezoelectric actuators within the micropump in order to maximize flow rate while minimizing power input. Their device worked at a driving frequency of 100 Hz to achieve an 800 microL/ min flow rate.…”

Section: Introductionmentioning

confidence: 99%

Design and optimization of piezoelectric actuators for microflap-embedded micropumps

Parsi

Abouzarkhanifard

Zhang

2023

Advances in Mechanical Engineering

View full text Add to dashboard Cite

In this paper, we propose a new method to use cost-effective multi-sheet off-the-shelf piezoelectric material (e.g. PZT) as an actuator for micropumps. Instead of one customized single PZT sheet that is typically expensive, multiple commercially available PZT sheets are utilized to decrease the cost of fabrication. For this purpose, we have derived analytic equations for expressing the natural frequency and mode shape of the actuator. The FEM simulations are utilized to verify the analytic equations. Thanks to their high accuracy, we can utilize the derived analytic equations as fitness functions of genetic algorithm (GA) for the optimization purpose of PZT physical aspects. Our experimental measurement results show that the GA is capable of optimizing multiple physical parameters of the piezoelectric actuator. Moreover, one-way compliant microflaps are presented for the first time to act as one-way valves for a PZT micropump aided by our proposed multi-sheet PZT actuator. The flow rate of this configuration is compared with a single-sheet PZT actuator in order to demonstrate the effect of the optimized PZT actuators in the practical applications of micropumps.

show abstract

Section: Introductionmentioning

confidence: 99%