<?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>1405-7743</journal-id>
<journal-title><![CDATA[Ingeniería, investigación y tecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. invest. y tecnol.]]></abbrev-journal-title>
<issn>1405-7743</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-77432019000300007</article-id>
<article-id pub-id-type="doi">10.22201/fi.25940732e.2019.20n3.031</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Stress analysis in a screw conveyor axis under a specific fault condition]]></article-title>
<article-title xml:lang="es"><![CDATA[Análisis de esfuerzos en eje de tornillo sinfín bajo condición específica de falla]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueroa-Díaz]]></surname>
<given-names><![CDATA[Rafael Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Balvantín-García]]></surname>
<given-names><![CDATA[Antonio de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Diosdado de la Peña]]></surname>
<given-names><![CDATA[José Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Alcantar]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Murillo-Verduzco]]></surname>
<given-names><![CDATA[Ismael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Olivas]]></surname>
<given-names><![CDATA[Pedro Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de Sonora Departamento de Ingeniería Eléctrica y Electrónica ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guanajuato Departamento de Ingeniería Mecánica ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Guanajuato Departamento de Ingeniería Mecánica ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Coordinación Académica ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Instituto Tecnológico de Sonora Departamento de Ingeniería Eléctrica y Electrónica, ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Instituto Tecnológico de Sonora Departamento de Ingeniería Eléctrica y Electrónica ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>20</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-77432019000300007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-77432019000300007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-77432019000300007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This work presents an analytical and numerical methodology that allows determining stress distribution during the functioning of a screw conveyor utilized for conveying granular material. Different operating conditions were studied analytically and numerically. Initially, the reactions generated when the mechanism was fully braced with four supports along the longitudinal axis of the shaft were estimated. In addition, the system was analyzed with a typical fault in one of the central supports. The faults studied occur primarily due to the empirical modifications that companies make to these kinds of mechanisms and to the continuous operation of the conveyor system. Finally, a comparative analysis is presented between the analytical and the numerical results in order to validate the proposed methodology.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En este trabajo se presenta una metodología analítica y numérica que permite determinar el estado de esfuerzos durante el funcionamiento de un tornillo sinfín utilizado para el transporte de material granular. Diferentes condiciones de operación fueron estudiadas analítica y numéricamente. Inicialmente, se estimaron las reacciones que se generan cuando el mecanismo está completamente sustentado con 4 soportes a lo largo del eje longitudinal de la flecha. Adicionalmente, el sistema fue analizado con una falla típica en uno de los soportes centrales. Las fallas estudiadas ocurren principalmente debido a las modificaciones empíricas que las empresas realizan sobre este tipo de mecanismos y a la operación continua del sistema de transporte. Finalmente, se presenta un análisis comparativo entre los resultados analíticos y numéricos en función de validar la metodología propuesta.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Screw conveyor]]></kwd>
<kwd lng="en"><![CDATA[granular material]]></kwd>
<kwd lng="en"><![CDATA[stress distribution]]></kwd>
<kwd lng="en"><![CDATA[finite element analysis]]></kwd>
<kwd lng="es"><![CDATA[Tornillo sinfín]]></kwd>
<kwd lng="es"><![CDATA[material granular]]></kwd>
<kwd lng="es"><![CDATA[distribución de esfuerzos]]></kwd>
<kwd lng="es"><![CDATA[análisis por elemento finito]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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