Dynamic mechanical response of beech (Fagus sylvatica L.) - Numerical analysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F20%3A43921021" target="_blank" >RIV/62156489:43410/20:43921021 - isvavai.cz</a>
Result on the web
<a href="http://www.hardwood.uni-sopron.hu/wp-content/uploads/2021/06/HWC2020_proceedings_final_online_I.pdf" target="_blank" >http://www.hardwood.uni-sopron.hu/wp-content/uploads/2021/06/HWC2020_proceedings_final_online_I.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Dynamic mechanical response of beech (Fagus sylvatica L.) - Numerical analysis
Original language description
The wind gusts occur more frequently in recent years and also hardwood stands can be seriously damaged by the wind storms. The mechanical responses of a tree at the forest scale are described by simplified models, for example FOREOLE (Ancelin et al. 2004), GALES and HWIND (Gardiner et al. 2000). These models describe static beam response with the use of a gust factor as a consideration of dynamic-wind characteristic. With the development of numerical methods, the more complex models of response to the turbulent airflow reflecting vibrations and damping of trees are available mainly for softwoods (Sellier et al. 2008). The experimental analyses of tree dynamic response are then more aimed at the effect of tree architecture, rather than considering tree defects (James et al., 2006). Our work aims to present a modal, harmonic and transient finite-element analysis of broadleaved tree response with respect to its material properties and architecture. The analyses were carried out using ANSYS Mechanical APDL software to describe the natural frequencies, mode shapes and development of amplitudes in frequency and time domain. The parametric beam based finite-element model of the tree with orthotropic material was developed. The model outputs were compared with the field experiment data. The parametric definition of the model enabled "what-if" analyses with the change of geometry and material constants simulating different defects and trees scenarios. The relationship between the dynamic response of model and tree defects were found to be a significant, which provides the possibility of application in non-destructive tree assessment.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
40102 - Forestry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
9th Hardwood Proceedings − Part I.
ISBN
978-963-334-377-7
ISSN
2631-004X
e-ISSN
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Number of pages
8
Pages from-to
291-298
Publisher name
University of Sopron
Place of publication
Sopron
Event location
Sopron
Event date
Jun 24, 2021
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000853723900052