Validation of Numerical Model of Tree Dynamic Response by Optical Measurements

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F22%3A43922519" target="_blank" >RIV/62156489:43410/22:43922519 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Validation of Numerical Model of Tree Dynamic Response by Optical Measurements
Original language description
The current research is dedicated to the topic of tree dynamics as its natural response to wind loading. The dynamic response can be described by the shape and frequency of oscillations defined by the geometry and material properties (global stiffness). These parameters are often derived from displacements (inclinations, accelerations) measured by locally coupled devices. While the complex response of the stem can help to define the overall oscillation tree shape and find the weak points of failure. The movement of twelve trees was captured by optical technique during "pull and release" tests and displacements (2D, 3D) along the stem in the time domain were reconstructed. The experimental work was accompanied by a series of computations with the parametric finite-element model of the tree. The validated numerical model provides a testing group for what-if scenarios which enables observation of the effect of the internal defect on the dynamic response of trees.
Czech name
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Czech description
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Project
<a href="/en/project/LL1909" target="_blank" >LL1909: Tree Dynamics: Understanding of Mechanical Response to Loading</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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