Numerical modeling of a lumped acoustic source actuated by a piezoelectric stack device that is driven by a switching amplifier

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Abstract

This paper studies an acoustic source with a relatively small thickness and high bending stiffness. Piezoelectric actuators are used to drive the moving component of the acoustic source. In the current study, a lumped model is used to represent the acoustic source that is excited by a piezoelectric stacked actuator. The equivalent electrical circuit of the lumped acoustic source can directly be connected to the electrical circuit of a switching amplifier. Various methods are used to estimate the radiation impedance of the acoustic source. The effectiveness of these methods is investigated when they are used in combination with the equivalent electrical circuit of the lumped acoustic source, the actuator and the amplifier. Finally, result of a numerical finite element simulation is compared with the results of the fully-lumped equivalent electrical circuit.

Original languageEnglish
Title of host publication25th International Congress on Sound and Vibration 2018 (ICSV 25)
Subtitle of host publicationHiroshima Calling
PublisherInternational Institute of Acoustics and Vibration (IIAV)
Pages4683-4690
Number of pages8
ISBN (Electronic)9781510868458
Publication statusPublished - 1 Jan 2018
Event25th International Congress on Sound and Vibration ICSV 2018 - The Grand Prince Hotel Hiroshima, Hiroshima, Japan
Duration: 8 Jul 201812 Jul 2018
Conference number: 25
https://www.iiav.org/icsv25/

Conference

Conference25th International Congress on Sound and Vibration ICSV 2018
Abbreviated titleICSV 2018
CountryJapan
CityHiroshima
Period8/07/1812/07/18
Internet address

Fingerprint

amplifiers
acoustics
piezoelectric actuators
stiffness
actuators
impedance
radiation
estimates
simulation

Keywords

  • Radiation impedance
  • Thin acoustic source

Cite this

Tajdari, F., Berkhoff, A. P., & de Boer, A. (2018). Numerical modeling of a lumped acoustic source actuated by a piezoelectric stack device that is driven by a switching amplifier. In 25th International Congress on Sound and Vibration 2018 (ICSV 25): Hiroshima Calling (pp. 4683-4690). International Institute of Acoustics and Vibration (IIAV).
Tajdari, Farnaz ; Berkhoff, Arthur P. ; de Boer, André. / Numerical modeling of a lumped acoustic source actuated by a piezoelectric stack device that is driven by a switching amplifier. 25th International Congress on Sound and Vibration 2018 (ICSV 25): Hiroshima Calling. International Institute of Acoustics and Vibration (IIAV), 2018. pp. 4683-4690
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title = "Numerical modeling of a lumped acoustic source actuated by a piezoelectric stack device that is driven by a switching amplifier",
abstract = "This paper studies an acoustic source with a relatively small thickness and high bending stiffness. Piezoelectric actuators are used to drive the moving component of the acoustic source. In the current study, a lumped model is used to represent the acoustic source that is excited by a piezoelectric stacked actuator. The equivalent electrical circuit of the lumped acoustic source can directly be connected to the electrical circuit of a switching amplifier. Various methods are used to estimate the radiation impedance of the acoustic source. The effectiveness of these methods is investigated when they are used in combination with the equivalent electrical circuit of the lumped acoustic source, the actuator and the amplifier. Finally, result of a numerical finite element simulation is compared with the results of the fully-lumped equivalent electrical circuit.",
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Tajdari, F, Berkhoff, AP & de Boer, A 2018, Numerical modeling of a lumped acoustic source actuated by a piezoelectric stack device that is driven by a switching amplifier. in 25th International Congress on Sound and Vibration 2018 (ICSV 25): Hiroshima Calling. International Institute of Acoustics and Vibration (IIAV), pp. 4683-4690, 25th International Congress on Sound and Vibration ICSV 2018, Hiroshima, Japan, 8/07/18.

Numerical modeling of a lumped acoustic source actuated by a piezoelectric stack device that is driven by a switching amplifier. / Tajdari, Farnaz; Berkhoff, Arthur P.; de Boer, André.

25th International Congress on Sound and Vibration 2018 (ICSV 25): Hiroshima Calling. International Institute of Acoustics and Vibration (IIAV), 2018. p. 4683-4690.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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T1 - Numerical modeling of a lumped acoustic source actuated by a piezoelectric stack device that is driven by a switching amplifier

AU - Tajdari, Farnaz

AU - Berkhoff, Arthur P.

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N2 - This paper studies an acoustic source with a relatively small thickness and high bending stiffness. Piezoelectric actuators are used to drive the moving component of the acoustic source. In the current study, a lumped model is used to represent the acoustic source that is excited by a piezoelectric stacked actuator. The equivalent electrical circuit of the lumped acoustic source can directly be connected to the electrical circuit of a switching amplifier. Various methods are used to estimate the radiation impedance of the acoustic source. The effectiveness of these methods is investigated when they are used in combination with the equivalent electrical circuit of the lumped acoustic source, the actuator and the amplifier. Finally, result of a numerical finite element simulation is compared with the results of the fully-lumped equivalent electrical circuit.

AB - This paper studies an acoustic source with a relatively small thickness and high bending stiffness. Piezoelectric actuators are used to drive the moving component of the acoustic source. In the current study, a lumped model is used to represent the acoustic source that is excited by a piezoelectric stacked actuator. The equivalent electrical circuit of the lumped acoustic source can directly be connected to the electrical circuit of a switching amplifier. Various methods are used to estimate the radiation impedance of the acoustic source. The effectiveness of these methods is investigated when they are used in combination with the equivalent electrical circuit of the lumped acoustic source, the actuator and the amplifier. Finally, result of a numerical finite element simulation is compared with the results of the fully-lumped equivalent electrical circuit.

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Tajdari F, Berkhoff AP, de Boer A. Numerical modeling of a lumped acoustic source actuated by a piezoelectric stack device that is driven by a switching amplifier. In 25th International Congress on Sound and Vibration 2018 (ICSV 25): Hiroshima Calling. International Institute of Acoustics and Vibration (IIAV). 2018. p. 4683-4690