Tyre/road noise frequency spectra analyses based on CPX measurement with six microphones

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44994575%3A_____%2F24%3A10002040" target="_blank" >RIV/44994575:_____/24:10002040 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Tyre/road noise frequency spectra analyses based on CPX measurement with six microphones

Popis výsledku v původním jazyce

Road traffic noise is affected by many factors, the road surface being one of them. The CPX method (ISO 11819-2) is the method used to measure tyre/road noise, i.e. noise generated by tyre-surface contact. Up to six microphones are positioned around reference tyre in specified positions as the standard requires. Two microphones are mandatory; four are optional.Conventional stone mastic asphalt, exposed aggregate cement concrete, low-noise pavement and cobblestones were measured by the CPX method using six microphones at a speed of 80 km/h. It would be advisable to consider adding another mandatory microphone (probably 5 or 6) to thetwo existing ones or to &quot;relocate&quot; one of these two (probably 4 or 5) for a more optimal tyre/road noise assessment. Presented results could be used to discussion about positions or necessity of mandatory and optional microphones.

Název v anglickém jazyce

Tyre/road noise frequency spectra analyses based on CPX measurement with six microphones

Popis výsledku anglicky

Road traffic noise is affected by many factors, the road surface being one of them. The CPX method (ISO 11819-2) is the method used to measure tyre/road noise, i.e. noise generated by tyre-surface contact. Up to six microphones are positioned around reference tyre in specified positions as the standard requires. Two microphones are mandatory; four are optional.Conventional stone mastic asphalt, exposed aggregate cement concrete, low-noise pavement and cobblestones were measured by the CPX method using six microphones at a speed of 80 km/h. It would be advisable to consider adding another mandatory microphone (probably 5 or 6) to thetwo existing ones or to &quot;relocate&quot; one of these two (probably 4 or 5) for a more optimal tyre/road noise assessment. Presented results could be used to discussion about positions or necessity of mandatory and optional microphones.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20104 - Transport engineering

Projekt

<a href="/cs/project/CK04000058" target="_blank" >CK04000058: Zohlednění dalších vlivů promítajících se do naměřených hodnot hlučnosti povrchů vozovek při dynamickém měření</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

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