Noise Reduction of Air Distribution Grilles Using 3D Printed Infill Structures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU147964" target="_blank" >RIV/00216305:26110/23:PU147964 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.journalakustika.com/index.php/akustika/article/view/129" target="_blank" >https://www.journalakustika.com/index.php/akustika/article/view/129</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.36336/akustika2023453" target="_blank" >10.36336/akustika2023453</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Noise Reduction of Air Distribution Grilles Using 3D Printed Infill Structures

Popis výsledku v původním jazyce

The aim of this research is to reduce the noise level of air distribution grilles using 3D printed infill structures. The grilles are installed on a newly developed autonomous ventilation system, which is used for decentralised ventilation of e.g., school classrooms. Several supply and return grilles with functional gyroid and honeycomb shaped infill structures were created and subsequently printed on an FDM 3D printer. Based on measurements and analysis of the maximum sound pressure levels at different microphone positions around the system and at different airflows, the combination of grilles with the greatest noise reduction was selected. The research is complemented by other data such as spectral analysis of the noise, measurement of the airflow velocity through the grilles and measurement of the room reverberation time. Significant noise reduction was achieved by using the proposed grilles and further conclusions were drawn. 3D printing technology proved to be a very useful tool in this case.

Název v anglickém jazyce

Noise Reduction of Air Distribution Grilles Using 3D Printed Infill Structures

Popis výsledku anglicky

The aim of this research is to reduce the noise level of air distribution grilles using 3D printed infill structures. The grilles are installed on a newly developed autonomous ventilation system, which is used for decentralised ventilation of e.g., school classrooms. Several supply and return grilles with functional gyroid and honeycomb shaped infill structures were created and subsequently printed on an FDM 3D printer. Based on measurements and analysis of the maximum sound pressure levels at different microphone positions around the system and at different airflows, the combination of grilles with the greatest noise reduction was selected. The research is complemented by other data such as spectral analysis of the noise, measurement of the airflow velocity through the grilles and measurement of the room reverberation time. Significant noise reduction was achieved by using the proposed grilles and further conclusions were drawn. 3D printing technology proved to be a very useful tool in this case.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Akustika

ISSN

1801-9064

e-ISSN

—

Svazek periodika

45

Číslo periodika v rámci svazku

45

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

22

Strana od-do

3-24

Kód UT WoS článku

000955633300001

EID výsledku v databázi Scopus

2-s2.0-85153500044