Structural and acoustic properties of African padouk (Pterocarpus soyauxii) wood for xylophones

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F15%3A43906642" target="_blank" >RIV/62156489:43410/15:43906642 - isvavai.cz</a>

Výsledek na webu

<a href="http://link.springer.com/content/pdf/10.1007%2Fs00107-015-0878-0.pdf" target="_blank" >http://link.springer.com/content/pdf/10.1007%2Fs00107-015-0878-0.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00107-015-0878-0" target="_blank" >10.1007/s00107-015-0878-0</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structural and acoustic properties of African padouk (Pterocarpus soyauxii) wood for xylophones

Popis výsledku v původním jazyce

The possibility of supplementing the subjective traditional assessment of wood quality for percussion instruments with reliable acoustic measurements was studied. Sawn boards of African padouk (Pterocarpus soyauxii Taub.) were selected in a timber yard and classified into five grades by using the dynamic combined specific modulus of elasticity. Then they were sawn into raw xylophone bars, which were afterwards traditionally graded by listening to the sound damping at flexural bending excitation and additionally by acoustic measurements. A high quality grade matching of xylophone bars and sawn boards was confirmed. Highly graded material was mostly quarter sawn with straight or moderately interlocked grain. The sound quality of raw xylophone bars was not influenced by the wood density. It negatively correlated with sound damping (tan delta) and positively with the specific modulus of elasticity and with absolute and relative acoustic conversion efficiency. The audial grading of xylophon

Název v anglickém jazyce

Structural and acoustic properties of African padouk (Pterocarpus soyauxii) wood for xylophones

Popis výsledku anglicky

The possibility of supplementing the subjective traditional assessment of wood quality for percussion instruments with reliable acoustic measurements was studied. Sawn boards of African padouk (Pterocarpus soyauxii Taub.) were selected in a timber yard and classified into five grades by using the dynamic combined specific modulus of elasticity. Then they were sawn into raw xylophone bars, which were afterwards traditionally graded by listening to the sound damping at flexural bending excitation and additionally by acoustic measurements. A high quality grade matching of xylophone bars and sawn boards was confirmed. Highly graded material was mostly quarter sawn with straight or moderately interlocked grain. The sound quality of raw xylophone bars was not influenced by the wood density. It negatively correlated with sound damping (tan delta) and positively with the specific modulus of elasticity and with absolute and relative acoustic conversion efficiency. The audial grading of xylophon

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/EE2.3.20.0269" target="_blank" >EE2.3.20.0269: Vytvoření mezinárodního vědecko-výzkumného týmu pro vývoj nových materiálů na bázi dřeva</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

European Journal of Wood and Wood Products

ISSN

0018-3768

e-ISSN

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Svazek periodika

73

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

235-243

Kód UT WoS článku

000350032300011

EID výsledku v databázi Scopus

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