<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0012-7353</journal-id>
<journal-title><![CDATA[DYNA]]></journal-title>
<abbrev-journal-title><![CDATA[Dyna rev.fac.nac.minas]]></abbrev-journal-title>
<issn>0012-7353</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0012-73532020000300061</article-id>
<article-id pub-id-type="doi">10.15446/dyna.v87n214.85186</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Transmissibility of coffee fruit-peduncle-branch systems submitted to vibration induced by impact]]></article-title>
<article-title xml:lang="es"><![CDATA[Transmisibilidad de los sistemas fruto-pedúnculo-ramas del café sometidos a vibración inducida por impacto]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gomes]]></surname>
<given-names><![CDATA[Ely Queiroz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[Fábio Lúcio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nascimento]]></surname>
<given-names><![CDATA[Moysés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zanella]]></surname>
<given-names><![CDATA[Marco Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Federal University of Uberlândia  ]]></institution>
<addr-line><![CDATA[Uberlândia ]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Federal University of Lavras  ]]></institution>
<addr-line><![CDATA[Lavras ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Federal University of Viçosa  ]]></institution>
<addr-line><![CDATA[Viçosa ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Federal University of Lavras  ]]></institution>
<addr-line><![CDATA[Lavras ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<volume>87</volume>
<numero>214</numero>
<fpage>61</fpage>
<lpage>65</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0012-73532020000300061&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0012-73532020000300061&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0012-73532020000300061&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The development of efficient machines for coffee harvesting requires solid knowledge about the dynamic behavior of the plant. Vibration transmissibility is a parameter on dynamic behavior that may help understand this process. The aim of this study was to evaluate the average vibration transmissibility in coffee fruit-peduncle-branch samples containing unripe and ripe fruits. The experiments were performed using Arabica coffee plants of the cultivar Catuaí Vermelho. The samples were submitted to three vibration frequency levels, 20, 30 and 40 Hz, induced to the branch with impact of rigid fiberglass rods moving at a constant amplitude 2 mm. Data on acceleration were collected using an accelerometer fixed to the branch. The frequency of 20 Hz presented the highest transmissibility. Samples containing ripe fruits also presented high transmissibility when compared to those containing unripe fruits.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El desarrollo de máquinas eficientes para la cosecha de café requiere un conocimiento sólido sobre el comportamiento dinámico de la planta. La transmisibilidad de la vibración es un parámetro del comportamiento dinámico que puede ayudar a comprender este proceso. El objetivo de este estudio fue evaluar la transmisibilidad de vibración promedio en muestras de rama de pedúnculo de fruta de café que contienen frutas inmaduras y maduras. Los experimentos se realizaron utilizando plantas de café Arábica "Catuaí Vermelho". Las muestras se sometieron a tres niveles de frecuencia de vibración, 20, 30 y 40 Hz, inducido a la rama con impacto de varillas rígidas de fibra de vidrio que se mueven a una amplitud constante de 2 mm. Los datos sobre la aceleración se recopilaron utilizando un acelerómetro fijado a la rama. La frecuencia de 20 Hz presentó la máxima transmisibilidad. Las muestras que contenían frutas maduras también presentaron una alta transmisibilidad en comparación con las que contenían frutas inmaduras.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[mechanized harvesting]]></kwd>
<kwd lng="en"><![CDATA[dynamic behavior]]></kwd>
<kwd lng="en"><![CDATA[mechanical vibrations]]></kwd>
<kwd lng="es"><![CDATA[cosecha mecanizada]]></kwd>
<kwd lng="es"><![CDATA[comportamiento dinámico]]></kwd>
<kwd lng="es"><![CDATA[vibraciones mecánicas]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>[1]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castro-Garcia]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Aragon-Rodriguez]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Arias-Calderón]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Sola-Guirado]]></surname>
<given-names><![CDATA[R.R]]></given-names>
</name>
<name>
<surname><![CDATA[Gil-Ribes]]></surname>
<given-names><![CDATA[J.A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The contribution of fruit and leaves to the dynamic response of secondary branches of orange trees]]></article-title>
<source><![CDATA[Biosystems Engineering]]></source>
<year>2020</year>
<volume>193</volume>
<page-range>149-56</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>[2]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Coelho]]></surname>
<given-names><![CDATA[A.L.F]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[F.L]]></given-names>
</name>
<name>
<surname><![CDATA[Queiroz]]></surname>
<given-names><![CDATA[D.M]]></given-names>
</name>
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[F.A.C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dynamic behavior of the coffee fruit-stem-branch system using stochastic finite element method]]></article-title>
<source><![CDATA[Coffee Science]]></source>
<year>2016</year>
<volume>11</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>[3]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Coelho]]></surname>
<given-names><![CDATA[A.L.F]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[F.L]]></given-names>
</name>
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[F.A.C]]></given-names>
</name>
<name>
<surname><![CDATA[Queiroz]]></surname>
<given-names><![CDATA[D.M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Detachment efficiency of fruits from coffee plants subjected to mechanical vibrations]]></article-title>
<source><![CDATA[Pesquisa Agropecuária Tropical]]></source>
<year>2015</year>
<volume>45</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>406-12</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>[4]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cunha]]></surname>
<given-names><![CDATA[J.P.B]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[F.M]]></given-names>
</name>
<name>
<surname><![CDATA[Dias]]></surname>
<given-names><![CDATA[R.E.B.A]]></given-names>
</name>
<name>
<surname><![CDATA[Lisboa]]></surname>
<given-names><![CDATA[C.F]]></given-names>
</name>
<name>
<surname><![CDATA[Machado]]></surname>
<given-names><![CDATA[T.A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Viabilidade técnica e econômica de diferentes sistemas de colheita do café]]></article-title>
<source><![CDATA[Coffee Science]]></source>
<year>2016</year>
<volume>11</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>416-25</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>[5]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gomes]]></surname>
<given-names><![CDATA[E.Q]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[F.L]]></given-names>
</name>
<name>
<surname><![CDATA[Jesus]]></surname>
<given-names><![CDATA[V.A.M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of the impact of a rigid rod on the coffee fruits detachment by mechanical vibrations]]></article-title>
<source><![CDATA[Agrarian]]></source>
<year>2016</year>
<volume>9</volume>
<numero>32</numero>
<issue>32</issue>
<page-range>172-81</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>[6]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[F.M]]></given-names>
</name>
<name>
<surname><![CDATA[Salvador]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Figuereido]]></surname>
<given-names><![CDATA[C.A.P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influência da vibração das hastes e da velocidade de deslocamento da colhedora no processo de colheita mecanizada do café]]></article-title>
<source><![CDATA[Revista Engenharia Agrícola]]></source>
<year>2007</year>
<volume>27</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>714-21</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>[7]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[Z.R.C.R]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[F.L]]></given-names>
</name>
<name>
<surname><![CDATA[Valente]]></surname>
<given-names><![CDATA[D.S.M]]></given-names>
</name>
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[F.D.A.C]]></given-names>
</name>
<name>
<surname><![CDATA[Velloso]]></surname>
<given-names><![CDATA[N.S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mechanical properties of the rachis from macaw palm bunche]]></article-title>
<source><![CDATA[Scientiarum. Agronomy]]></source>
<year>2018</year>
<volume>40</volume>
<page-range>1-7</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>[8]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pezzy]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Caprara]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mechanical grape harvesting: investigation of the transmission of vibrations]]></article-title>
<source><![CDATA[Biosystems Engineering]]></source>
<year>2009</year>
<volume>103</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>281-6</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>[9]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rao]]></surname>
<given-names><![CDATA[S.S]]></given-names>
</name>
</person-group>
<source><![CDATA[Vibrações mecânicas]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Quarta Edição ]]></publisher-loc>
<publisher-name><![CDATA[Pearson, 3rª Reimpressão]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<label>[10]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Santinato]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[R.P]]></given-names>
</name>
<name>
<surname><![CDATA[Cassia]]></surname>
<given-names><![CDATA[M.T]]></given-names>
</name>
<name>
<surname><![CDATA[Santinato]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Análise quali-quantitativa da operação de colheita mecanizada de café em duas safras]]></article-title>
<source><![CDATA[Coffee Science]]></source>
<year>2014</year>
<volume>9</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>495-505</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>[11]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[F.L]]></given-names>
</name>
<name>
<surname><![CDATA[Queiroz]]></surname>
<given-names><![CDATA[D.M]]></given-names>
</name>
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[F.A.C]]></given-names>
</name>
<name>
<surname><![CDATA[Resende]]></surname>
<given-names><![CDATA[R.C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efeito da frequência e amplitude de vibração sobre a derriça de frutos de café]]></article-title>
<source><![CDATA[Revista Brasileira de Engenharia Agrícola e Ambiental]]></source>
<year>2010</year>
<month>b</month>
<volume>14</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>425-31</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>[12]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[F.L]]></given-names>
</name>
<name>
<surname><![CDATA[Queiroz]]></surname>
<given-names><![CDATA[D.M]]></given-names>
</name>
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[F.A.C]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[N.T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analysis of the coffee harvesting process using an electromagnetic shaker]]></article-title>
<source><![CDATA[Acta Scientiarum. Agronomy]]></source>
<year>2010</year>
<month>a</month>
<volume>32</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>373-8</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>[13]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[F.L]]></given-names>
</name>
<name>
<surname><![CDATA[Queiroz]]></surname>
<given-names><![CDATA[D.M]]></given-names>
</name>
<name>
<surname><![CDATA[Valente]]></surname>
<given-names><![CDATA[D.S.M]]></given-names>
</name>
<name>
<surname><![CDATA[Coelho]]></surname>
<given-names><![CDATA[A.L.F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Simulation of the dynamic behavior of the coffee fruit-stem system using finite element method]]></article-title>
<source><![CDATA[Acta Scientiarum. Technology]]></source>
<year>2015</year>
<volume>37</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>11-7</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>[14]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[F.C]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[F.M]]></given-names>
</name>
<name>
<surname><![CDATA[Alves]]></surname>
<given-names><![CDATA[M.C]]></given-names>
</name>
<name>
<surname><![CDATA[Barros]]></surname>
<given-names><![CDATA[M.M]]></given-names>
</name>
<name>
<surname><![CDATA[Sales]]></surname>
<given-names><![CDATA[R.S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comportamento da força de desprendimento dos frutos de cafeeiros ao longo do período de colheita]]></article-title>
<source><![CDATA[Ciência e Agrotecnologia]]></source>
<year>2010</year>
<volume>34</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>468-74</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>[15]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tinoco]]></surname>
<given-names><![CDATA[H.A]]></given-names>
</name>
<name>
<surname><![CDATA[Ocampo]]></surname>
<given-names><![CDATA[D.A]]></given-names>
</name>
<name>
<surname><![CDATA[Peña]]></surname>
<given-names><![CDATA[F.M]]></given-names>
</name>
<name>
<surname><![CDATA[Sanz-Uribe]]></surname>
<given-names><![CDATA[J.R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Finiteelement modal analysis of the fruit-peduncle of Coffea arabica L. var. Colombia estimatingist geometrical and mechanical properties]]></article-title>
<source><![CDATA[Computer and Electronics in Agriculture]]></source>
<year>2014</year>
<volume>108</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>17-27</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>[16]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Villibor]]></surname>
<given-names><![CDATA[G.P]]></given-names>
</name>
</person-group>
<source><![CDATA[Modelagem do sistema fruto-pedúnculo no processo de derriça do café]]></source>
<year>2012</year>
<publisher-loc><![CDATA[Viçosa, Brazil ]]></publisher-loc>
<publisher-name><![CDATA[Department of Agricultural Engineering, Federal University of Viçosa]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<label>[17]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Villibor]]></surname>
<given-names><![CDATA[G.P]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[F.L]]></given-names>
</name>
<name>
<surname><![CDATA[Queiroz]]></surname>
<given-names><![CDATA[D.M. De.]]></given-names>
</name>
<name>
<surname><![CDATA[Khoury Junior]]></surname>
<given-names><![CDATA[J.K]]></given-names>
</name>
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[F.A.C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Determination of modal properties of the coffee fruit-stem system using high speed digital video and digital image processing, Acta Scientiarum]]></article-title>
<source><![CDATA[Technology]]></source>
<year>2016</year>
<volume>38</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>41-8</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
