Finite element analysis of logs geometry influence to 1st natural frequency with respect of frequence-resonance method use
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F21%3A43920463" target="_blank" >RIV/62156489:43410/21:43920463 - isvavai.cz</a>
Výsledek na webu
<a href="http://www.fdtme.ukim.edu.mk/en/conference-2021/PROCEEDINGS%20of%20the%20Conference%20-Wood%20Technology%20&%20Product%20Design-Ohrid-2021.pdf" target="_blank" >http://www.fdtme.ukim.edu.mk/en/conference-2021/PROCEEDINGS%20of%20the%20Conference%20-Wood%20Technology%20&%20Product%20Design-Ohrid-2021.pdf</a>
DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Finite element analysis of logs geometry influence to 1st natural frequency with respect of frequence-resonance method use
Popis výsledku v původním jazyce
This paper aims to present the influence of geometry simplification on the investigation of logs mechanical properties (dynamic elastic modulus) as the non-destructive testing of wood structures and materials is a common method for assessment of timber quality. The modal analyses of logs with a variation on three levels of geometry (from simplified primitive volumes to precise scanned 3D objects) were carried out in ANSYS Workbench and Mechanical APDL (Ansys(R) Academic Research Mechanical, Release 2020 R2, ANSYS, Inc.). Fundamental frequencies in bending and longitudinal mode were validated by comparison with the results of in-situ measurement. The logs were measured by stress wave propagation (SWP) and frequency-resonance method (FRM) and dynamic elastic moduli from these data were calculated. Validation was followed by series of modal analyses (computed by finite element method) where geometry precision to 1st frequency and dynamic elastic modulus was evaluated. Results were discussed with respect to provide foundations for enhancement of methods for non-destructive wood measurement.
Název v anglickém jazyce
Finite element analysis of logs geometry influence to 1st natural frequency with respect of frequence-resonance method use
Popis výsledku anglicky
This paper aims to present the influence of geometry simplification on the investigation of logs mechanical properties (dynamic elastic modulus) as the non-destructive testing of wood structures and materials is a common method for assessment of timber quality. The modal analyses of logs with a variation on three levels of geometry (from simplified primitive volumes to precise scanned 3D objects) were carried out in ANSYS Workbench and Mechanical APDL (Ansys(R) Academic Research Mechanical, Release 2020 R2, ANSYS, Inc.). Fundamental frequencies in bending and longitudinal mode were validated by comparison with the results of in-situ measurement. The logs were measured by stress wave propagation (SWP) and frequency-resonance method (FRM) and dynamic elastic moduli from these data were calculated. Validation was followed by series of modal analyses (computed by finite element method) where geometry precision to 1st frequency and dynamic elastic modulus was evaluated. Results were discussed with respect to provide foundations for enhancement of methods for non-destructive wood measurement.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
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OECD FORD obor
20502 - Paper and wood
Návaznosti výsledku
Projekt
<a href="/cs/project/LL1909" target="_blank" >LL1909: Dynamika stromu: popis mechanické odezvy na zatížení</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
5th International Scientific Conference Wood Technology & Product Design: Proceedings
ISBN
978-608-4723-04-2
ISSN
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e-ISSN
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Počet stran výsledku
10
Strana od-do
162-171
Název nakladatele
Ss. Cyril and Methodius University
Místo vydání
Skopje
Místo konání akce
Ohrid
Datum konání akce
14. 9. 2021
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
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