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A resonant piezoelectric stack pump based on a two-stage nested rhombus displacement-amplifying vibrator in symmetric-drive mode.

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Title: A resonant piezoelectric stack pump based on a two-stage nested rhombus displacement-amplifying vibrator in symmetric-drive mode.
Authors: Chen, Jian1 (AUTHOR), Feng, Zihan1 (AUTHOR), Jin, Rong1 (AUTHOR), Gao, Wenzhi1 (AUTHOR), Liu, Changhai1 (AUTHOR), Zeng, Yishan1 (AUTHOR), Wang, Jingwu2 (AUTHOR) wangjingwu@tsinghua-hf.edu.cn
Source: Journal of Intelligent Material Systems & Structures. Aug2025, Vol. 36 Issue 14, p949-962. 14p.
Subjects: Piezoelectric actuators, Vibrators, Finite element method, Dynamic loads
Abstract: This paper proposes a resonant piezoelectric stack pump based on a two-stage nested rhombus displacement-amplifying vibrator in symmetric-drive mode. Two rhombus displacement amplifiers are connected in a nested manner to achieve exponential displacement amplification of the piezoelectric stack. Symmetric-drive mode is adopted to minimize the vibrating mass and inertial load in the displacement output direction of the piezoelectric vibrator, thereby improving its resonant frequency. A piezo-actuated two-stage nested rhombus displacement-amplifying vibrator was designed, and its output characteristics in fix-drive mode and symmetric-drive mode were analyzed theoretically and by finite element simulation. Two piezoelectric pumps were designed and fabricated with the same piezoelectric vibrator in fix-drive mode and symmetric-drive mode respectively, and their output performances were tested and compared. Under a sinusoidal driving voltage of 80 V, the piezoelectric pump in fix-drive mode achieved the maximum flow rate of 168.8 ml/min at the resonant frequency of 201 Hz and the maximum backpressure of 7.4 kPa at 203 Hz; while the maximum flow rate and backpressure of the piezoelectric pump in symmetric-drive mode reached 792.2 ml/min and 35.6 kPa at the corresponding resonant frequencies of 660 and 721 Hz. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Intelligent Material Systems & Structures is the property of Sage Publications, Ltd. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 187099320
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: A resonant piezoelectric stack pump based on a two-stage nested rhombus displacement-amplifying vibrator in symmetric-drive mode.
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  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Jian%22">Chen, Jian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Feng%2C+Zihan%22">Feng, Zihan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jin%2C+Rong%22">Jin, Rong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gao%2C+Wenzhi%22">Gao, Wenzhi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Changhai%22">Liu, Changhai</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zeng%2C+Yishan%22">Zeng, Yishan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Jingwu%22">Wang, Jingwu</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> wangjingwu@tsinghua-hf.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Intelligent+Material+Systems+%26+Structures%22">Journal of Intelligent Material Systems & Structures</searchLink>. Aug2025, Vol. 36 Issue 14, p949-962. 14p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Piezoelectric+actuators%22">Piezoelectric actuators</searchLink><br /><searchLink fieldCode="DE" term="%22Vibrators%22">Vibrators</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamic+loads%22">Dynamic loads</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper proposes a resonant piezoelectric stack pump based on a two-stage nested rhombus displacement-amplifying vibrator in symmetric-drive mode. Two rhombus displacement amplifiers are connected in a nested manner to achieve exponential displacement amplification of the piezoelectric stack. Symmetric-drive mode is adopted to minimize the vibrating mass and inertial load in the displacement output direction of the piezoelectric vibrator, thereby improving its resonant frequency. A piezo-actuated two-stage nested rhombus displacement-amplifying vibrator was designed, and its output characteristics in fix-drive mode and symmetric-drive mode were analyzed theoretically and by finite element simulation. Two piezoelectric pumps were designed and fabricated with the same piezoelectric vibrator in fix-drive mode and symmetric-drive mode respectively, and their output performances were tested and compared. Under a sinusoidal driving voltage of 80 V, the piezoelectric pump in fix-drive mode achieved the maximum flow rate of 168.8 ml/min at the resonant frequency of 201 Hz and the maximum backpressure of 7.4 kPa at 203 Hz; while the maximum flow rate and backpressure of the piezoelectric pump in symmetric-drive mode reached 792.2 ml/min and 35.6 kPa at the corresponding resonant frequencies of 660 and 721 Hz. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Intelligent Material Systems & Structures is the property of Sage Publications, Ltd. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1177/1045389X251358931
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 14
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      – SubjectFull: Piezoelectric actuators
        Type: general
      – SubjectFull: Vibrators
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      – SubjectFull: Finite element method
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      – SubjectFull: Dynamic loads
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      – TitleFull: A resonant piezoelectric stack pump based on a two-stage nested rhombus displacement-amplifying vibrator in symmetric-drive mode.
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            NameFull: Chen, Jian
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            NameFull: Feng, Zihan
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            NameFull: Jin, Rong
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            NameFull: Liu, Changhai
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              Text: Aug2025
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              Y: 2025
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