Design of resonant frequencies for piezoelectric actuator with integrated components

Jun Kuroda, Yasuharu Onishi, Motoyoshi Komoda, Yasuhiro Oikawa, Yoshio Yamasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Piezoelectric actuators are used in a wide range of electrical devices, including piezoelectric speakers, buzzers, haptics and ultrasonic transducers. For piezoelectric actuator systems used in mobile devices, the most important issue is improving the electromechanical conversion efficiency. The power consumed by the actuators must be minimized due to the small size of the batteries used. The frequency response around the mechanical resonance must be carefully designed to enable low power driving. The resonant frequencies of piezoelectric actuators that consist of integrated components, such as the metal cones in ultrasonic speakers, are determined by the energy dispersion of the total system. Therefore, factors such as the size and physical properties of each component must be designed to optimize the resonant frequencies for practical applications. The total energy of the piezoelectric system is described by Lagrange-Maxwell equations. Even though it is not easy to solve the differential equations written in a Lagrangian coordinate system by using exact calculations, useful information for designing systems can be derived from approximate calculations. In this paper, we will introduce design guidelines that can be used to optimize the resonant frequencies of piezoelectric actuators with integrated components, based on analysis using the Lagrangian coordinate system.

Original languageEnglish
Title of host publicationProceedings of Meetings on Acoustics
Volume19
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event21st International Congress on Acoustics, ICA 2013 - 165th Meeting of the Acoustical Society of America - Montreal, QC, Canada
Duration: 2013 Jun 22013 Jun 7

Other

Other21st International Congress on Acoustics, ICA 2013 - 165th Meeting of the Acoustical Society of America
CountryCanada
CityMontreal, QC
Period13/6/213/6/7

Fingerprint

piezoelectric actuators
resonant frequencies
ultrasonics
resonant vibration
Maxwell equation
frequency response
electric batteries
cones
transducers
differential equations
physical properties
actuators
energy
metals

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Kuroda, J., Onishi, Y., Komoda, M., Oikawa, Y., & Yamasaki, Y. (2013). Design of resonant frequencies for piezoelectric actuator with integrated components. In Proceedings of Meetings on Acoustics (Vol. 19). [030066] https://doi.org/10.1121/1.4799923

Design of resonant frequencies for piezoelectric actuator with integrated components. / Kuroda, Jun; Onishi, Yasuharu; Komoda, Motoyoshi; Oikawa, Yasuhiro; Yamasaki, Yoshio.

Proceedings of Meetings on Acoustics. Vol. 19 2013. 030066.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kuroda, J, Onishi, Y, Komoda, M, Oikawa, Y & Yamasaki, Y 2013, Design of resonant frequencies for piezoelectric actuator with integrated components. in Proceedings of Meetings on Acoustics. vol. 19, 030066, 21st International Congress on Acoustics, ICA 2013 - 165th Meeting of the Acoustical Society of America, Montreal, QC, Canada, 13/6/2. https://doi.org/10.1121/1.4799923
Kuroda J, Onishi Y, Komoda M, Oikawa Y, Yamasaki Y. Design of resonant frequencies for piezoelectric actuator with integrated components. In Proceedings of Meetings on Acoustics. Vol. 19. 2013. 030066 https://doi.org/10.1121/1.4799923
Kuroda, Jun ; Onishi, Yasuharu ; Komoda, Motoyoshi ; Oikawa, Yasuhiro ; Yamasaki, Yoshio. / Design of resonant frequencies for piezoelectric actuator with integrated components. Proceedings of Meetings on Acoustics. Vol. 19 2013.
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