Szczegóły publikacji
Opis bibliograficzny
Piezoelements with step changes in material properties in sound and vibration reduction / TROJANOWSKI Roman, WICIAK Jerzy // W: inter.noise 2019 [Dokument elektroniczny] : 48th international Congress and Exhibition on Noise Control Engineering : noise control for a better environment : June 16–19, 2019, Madrid : [proceedings] / eds. Antonio Calvo-Manzano, [et al.]. — Wersja do Windows. — Dane tekstowe. — [Madrid : Spanish Acoustical Society], [2019]. — (Inter-noise: International Conference on Noise Control Engineering ; ISSN 0105-175X). — e-ISBN: 978-84-87985-31-7. — S. [1–11]. — Wymagania systemowe: Adobe Reader. — Tryb dostępu: http://www.sea-acustica.es/fileadmin//INTERNOISE_2019/Fchrs/P... [2020-01-23]. — Bibliogr. s. [11], Abstr.
Autorzy (2)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 127191 |
|---|---|
| Data dodania do BaDAP | 2020-01-30 |
| Rok publikacji | 2019 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Czasopismo/seria | Inter-noise |
Abstract
This paper deals with numerical analyses of the effect of the size of the inner part of a 2-part piezoactuator on the reduction of plate's vibration and the sound pressure generated by said plate. For that purpose numerical models of a square steel plate were created. The plate is 400 mm x 400 mm x 2 mm and is clamped on all sides. 2 piezoactuators are attached to it. One is placed near the centrehas homogeneous build (material properties of PZ28) and is used to excite the plate. The other one is placed on one of the diagonals near 1/4 of its length. This element is a 2-part element (material properties is a combination of PZ28 and PZ92) with 3 possible base shapes (square, triangle and circle) and 3 possible sizes of the inner part of the actuator and is used to reduce the vibration of the plate (as well as sound pressure radiated by it). On one side the plate connected to a half sphere of air acting as a sound surroundings. Results are presented for the 4 mode shapes (1st, 2nd, 4th and 5th to be exact).
