| Autor: |
de Paoli MENDES, Ramon, Ferreira POTTIE, Daniel Leon, Silva MARTINS, Leonardo Victor, Martins OLIVEIRA Jr., Maury, Valentim DONADON, Lazaro |
| Předmět: |
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| Zdroj: |
Acta Technica Corviniensis - Bulletin of Engineering; May2020, Vol. 13 Issue 2, p43-52, 10p |
| Abstrakt: |
The aim of this work is to synthesize in didactic character the theory about the frequency domain specific acoustic impedance variation as a function of the introduction of the Helmholtz Resonator for different positions along an acoustic cylindrical channel in which flat waves propagate in steady state. So that, provided the mathematical formulation and using the finite element technique it was possible to implement a Pseudo Code and a Scilab Code. A small prototype with a Helmholtz resonator designed to eliminate a frequency of 144,86 Hz was used to qualitatively verify the mathematical model, it was found that the results provided by the Code are in agreement with the experimental measurements. With the code it is possible to evaluate the effect of the resonator position along the acoustic duct. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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