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Effects of driving mode on the performance of multiple-chamber piezoelectric pumps with multiple actuators

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Abstract

Due to the limited output capability of piezoelectric diaphragm pumps, the driving voltage is frequently increased to obtain the desired output. However, the excessive voltage application may lead to a large deformation in the piezoelectric ceramics, which could cause it to breakdown or become damaged. Therefore, increasing the number of chambers to obtain the desired output is proposed. Using a check-valve quintuple-chamber pump with quintuple piezoelectric actuators, the characteristics of the pump under different driving modes are investigated through experiments. By changing the number and connection mode of working actuators, pump performances in terms of flow rate and backpressure are tested at a voltage of 150 V with a frequency range of 60 Hz −400 Hz. Experiment results indicate that the properties of the multiple-chamber pump change significantly with distinct working chambers even though the number of pumping chambers is the same. Pump performance declines as the distance between the working actuators increases. Moreover, pump performance declines dramatically when the working piezoelectric actuator closest to the outlet is involved. The maximum backpressures of the pump with triple, quadruple, and quintuple actuators are increased by 39%, 83%, and 128%, respectively, compared with the pump with double working actuators; the corresponding maximum flow rates of the pumps are simply increased by 25.9%, 49.2%, and 67.8%, respectively. The proposed research offers practical guidance for the effective utilization of the multiple-chamber pumps under different driving modes.

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Authors and Affiliations

Authors

Corresponding author

Correspondence to Junwu Kan.

Additional information

Supported by National Natural Science Foundation of China(Grant Nos. 51205366, 51205367, 51377147), and Zhejiang Provincial Natural Science Foundation of China(Grant No. LQ13E050007)

ZHANG Zhonghua, born in 1980, is currently an associate professor at Institute of Precision Machinery, Zhejiang Normal University, China. He received his PhD degree from Dalian University of Technology, China, in 2009. His research interests include piezoelectric sensors, piezoelectric pumps, integration technology of sensors and actuators.

KAN Junwu, born in 1965, is currently a professor at Zhejiang Normal University, China. He received his PhD degree from Jilin University, China, in 2003. His research interests include piezoelectric actuators, piezoelectric micropumps and piezoelectric energy harvesting.

WANG Shuyun, born in 1965, is currently a professor at Zhejiang Normal University, China. She received her PhD degree from Jilin University, China, in 2008. Her research interests include the system modeling and structural optimization in the fields of piezoelectric actuation/control, such as piezoelectric micropump, piezo-hydraulic/pneumatic actuator//isolator, and piezoelectric energy harvesting.

WANG Hongyun, born in 1975, is currently an associate professor at Institute of Precision Machinery, Zhejiang Normal University, China. She received her PhD degree from Tongji University, China, in 2009. Her research interests include magnetorheological fluid and magnetorheological technology.

MA Jijie, born in 1980, is currently a lecturer at Institute of Precision Machinery, Zhejiang Normal University, China. He received his PhD degree from Jilin University, China, in 2010. His research interests include piezoelectric actuators and inertia dynamometer.

JIANG Yonghua, born in 1982, is currently an associate professor at Institute of Precision Machinery, Zhejiang Normal University, China. He received his PhD degree from Chongqing University, China, in 2010. His research interests include signal analysis, measurement technology and instruments.

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Zhang, Z., Kan, J., Wang, S. et al. Effects of driving mode on the performance of multiple-chamber piezoelectric pumps with multiple actuators. Chin. J. Mech. Eng. 28, 954–963 (2015). https://doi.org/10.3901/CJME.2015.0411.043

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  • DOI: https://doi.org/10.3901/CJME.2015.0411.043

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