PZT Asymmetrical Shape Optimization in Active Vibration Reduction of Triangular Plates

• Autorzy: Brański Adam , Kuras Romuald

Identyfikatory

DOI

10.24425/aoa.2023.145241

• Języki publikacji: EN

Abstrakty

EN

The article presents the new 2D asymmetrical PZT (a-PZT) and its effectiveness in the active reduction of triangular plate vibrations. The isosceles right triangular plate with simply supported edges was chosen as the research object. To determine the a-PZT asymmetry and its distribution on the plate, a maximum bending moment criterion for the beam was used. First of all, this criterion points out exact center location of the a-PZT. It was at the point, at which the plate bending moment has reached its maximum value. Next, at this point, it was assumed that the piezoelectric consists of active fibers located radially from the center. Each fiber acted on the plate as a separate actuator. Next, at each direction, the actuator asymmetry was found mathematically by minimizing the amplitude of the vibrations. By connecting the outer edges of individual fibers, the 2D a-PZT was obtained. It was quantitatively confirmed that the effectiveness of the new a-PZT was the best compared with the effectiveness of the standard square and the circular PZTs, adding the same exciting energy to the PZTs.

Słowa kluczowe

EN

triangular plate; actuator (PZT); active vibration reduction; vibration reduction coefficient; effectiveness coefficient

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2023
• Tom: Vol. 48, No. 3
• Strony: 425--432
• Opis fizyczny: Bibliogr. 22 poz., rys., tab., wykr.

Twórcy

autor

Brański Adam

• Department of Electrical and Computer Engineering Fundamentals Rzeszow University of Technology Rzeszow, Poland

• https://orcid.org/0000-0002-7686-1136

autor

Kuras Romuald

• Department of Electrical and Computer Engineering Fundamentals Rzeszow University of Technology Rzeszow, Poland

• https://orcid.org/0000-0002-7862-6252

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023). (PL)