Determination of Detachment Frequencies of Ripe Coffee Fruits (Coffea Arabica var. Colombia) by means of a Numerical and Experimental Approach
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F17%3APU140313" target="_blank" >RIV/00216305:26620/17:PU140313 - isvavai.cz</a>
Result on the web
<a href="http://doi.org/10.31224/osf.io/qgkew" target="_blank" >http://doi.org/10.31224/osf.io/qgkew</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.31224/osf.io/qgkew" target="_blank" >10.31224/osf.io/qgkew</a>
Alternative languages
Result language
angličtina
Original language name
Determination of Detachment Frequencies of Ripe Coffee Fruits (Coffea Arabica var. Colombia) by means of a Numerical and Experimental Approach
Original language description
In this study, it is proposed an experimental and numerical approach to identify a bandwidth of harmonic frequencies where ripe fruits of Coffea arabica L. var. Colombia can be selectively stimulated. For this purpose, a geometric model was designed computationally to represent the topology of the coffee fruit-peduncle system in all ripening stages. Using analytical models and pseudo experimental data, the mechanical properties were estimated to carry out a finite element analysis of the system. It was verified with a detachment model that a fruit can be detached when a specific harmonic force (mechanical vibrations) is applied on the fruits in determined frequencies which correspond to the second vibration mode of the fruits. Results indicate that dynamic excitations between 130 to 150 Hz could detach only ripe fruits, since fruits that were in other ripening stages were not stimulated until detachment in that bandwidth.
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
10307 - Acoustics
Result continuities
Project
<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Applied Mechanics 2017 Conference Proceedings
ISBN
978-80-87434-08-6
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
1-4
Publisher name
Ustav Fysiky Materialu AV CR
Place of publication
Brno
Event location
Brno
Event date
Apr 25, 2017
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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