Dynamic stiffness measurement of resilient materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F20%3A00343199" target="_blank" >RIV/68407700:21230/20:00343199 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0025781" target="_blank" >https://doi.org/10.1063/5.0025781</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0025781" target="_blank" >10.1063/5.0025781</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamic stiffness measurement of resilient materials

Popis výsledku v původním jazyce

Resilient materials are used to achieve vibration isolation in buildings and thus to reduce the transmission of impact sound. To characterise resilient materials, several measurement procedures exist for the determination of the dynamic stiffness of these materials. In the field of building physics, the most commonly used method is described in EN 29052-1. This publication focuses on the dynamic stiffness determination of resilient materials using different methods of excitation of the sample under test. Hammer and shaker excitation were used. It is shown that the method of excitation causes a strong deviation of the measured dynamic stiffness. Tests were performed on two different porous materials. A linear and exponential data extrapolation results were compared and a modification of the measurement set-up by means of a massive frame around the specimen was applied. Additionally the influence of the different methods of excitation on the measured loss factor was investigated as well.

Název v anglickém jazyce

Dynamic stiffness measurement of resilient materials

Popis výsledku anglicky

Resilient materials are used to achieve vibration isolation in buildings and thus to reduce the transmission of impact sound. To characterise resilient materials, several measurement procedures exist for the determination of the dynamic stiffness of these materials. In the field of building physics, the most commonly used method is described in EN 29052-1. This publication focuses on the dynamic stiffness determination of resilient materials using different methods of excitation of the sample under test. Hammer and shaker excitation were used. It is shown that the method of excitation causes a strong deviation of the measured dynamic stiffness. Tests were performed on two different porous materials. A linear and exponential data extrapolation results were compared and a modification of the measurement set-up by means of a massive frame around the specimen was applied. Additionally the influence of the different methods of excitation on the measured loss factor was investigated as well.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10307 - Acoustics

Projekt

<a href="/cs/project/EF16_027%2F0008465" target="_blank" >EF16_027/0008465: Mezinárodní mobility výzkumných pracovníků ČVUT</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings 2275

ISBN

978-0-7354-4005-0

ISSN

—

e-ISSN

1551-7616

Počet stran výsledku

7

Strana od-do

—

Název nakladatele

AIP Publishing, APL, the American Institute of Physics

Místo vydání

Melville, NY

Místo konání akce

Eger

Datum konání akce

2. 9. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—