<?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>0123-3033</journal-id>
<journal-title><![CDATA[Ingeniería y competitividad]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. compet.]]></abbrev-journal-title>
<issn>0123-3033</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ingeniería, Universidad del Valle]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-30332024000100009</article-id>
<article-id pub-id-type="doi">10.25100/iyc.v26i1.13265</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Evaluation of the use of polylactic acid in 3d printing for the construction of an unmanned aerial vehicle in the department of córdoba]]></article-title>
<article-title xml:lang="es"><![CDATA[Evaluación del uso de ácido poliláctico en la impresión 3d para la construcción de un vehículo aéreo no tripulado en el departamento de córdoba]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sofán-Germán]]></surname>
<given-names><![CDATA[Stiven J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Racero-Galaraga]]></surname>
<given-names><![CDATA[Diego A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rhenals-Julio]]></surname>
<given-names><![CDATA[Jesús D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rentería-Peláez]]></surname>
<given-names><![CDATA[Jorge L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-López]]></surname>
<given-names><![CDATA[Julissa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Sinú-Elías Bechara Zainúm Faculty of Science and Engineering ]]></institution>
<addr-line><![CDATA[Monteria ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade Federal de São Carlos  ]]></institution>
<addr-line><![CDATA[São Carlos ]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Córdoba Faculty of Engineering Department of Mechanical Engineering]]></institution>
<addr-line><![CDATA[Montería ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Córdoba Faculty of Engineering Department of Environmental Engineering]]></institution>
<addr-line><![CDATA[Montería ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2024</year>
</pub-date>
<volume>26</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-30332024000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-30332024000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-30332024000100009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The use of polylactic acid (PLA) in the technology of fused deposition modeling (FDM), better known as 3D printing, to create all kinds of parts, from prototypes and simple pieces to highly technical end products, is a significant contender due to its wide range of properties compared to other petrochemical-based composite materials. The aim of this study was to evaluate the use of polylactic acid (PLA) for the construction of unmanned aerial vehicles (UAVs) through 3D printing. Power and force calculations for the UAV were performed, and a structural analysis using SolidWorks software was conducted to calculate maximum and minimum stresses and determine optimal manufacturing parameters. Additionally, an aerodynamic analysis using ANSYS software was carried out to determine the drag coefficient and the forces acting on the UAV. It was found that the force exerted by the motors on the arms is 13,63 N, and the power is 536 N. In the structural analysis, it was determined that the minimum stresses are located in the chassis arms, while the maximum stresses are found where the chassis is attached, with a value of 6,604 MPa and a safety factor of 3,23. In the aerodynamic analysis, a drag force of 1 N and a flight power of 108,44 N were calculated. The UAV achieved a flight height of 48 m and a flight autonomy of 17 minutes, concluding that 3D printing technology is a viable and cost-effective alternative.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El uso de ácido poliláctico (PLA) en la tecnología por deposición fundida (FDM) más conocida como impresión 3D para crear todo tipo de piezas, desde prototipos y piezas simples hasta productos finales altamente técnicos es un gran un competidor debido a su amplio rango de propiedades frente a otros materiales compuestos de origen petroquímico. El objetivo de este trabajo fue evaluar el uso de ácido poliláctico (PLA) para la construcción de vehículos aéreos no tripulados (UAV) por medio de impresión 3D. Se realizó el cálculo de la potencia y la fuerza del UAV, un análisis estructural en el software SolidWorks para calcular los esfuerzos máximos y mínimos y determinar los parámetros óptimos de elaboración. Así mismo, se realizó un análisis aerodinámico mediante el software ANSYS para determinar el coeficiente de arrastre y las fuerzas que intervienen en el UAV. Se encuentra que la fuerza que ejercen los motores sobre los bazos es de 13,63 N y la potencia es de 536N; en el análisis estructural se encontró que los esfuerzos mínimos se encuentran en los brazos del chasis y los esfuerzos máximos se encuentra donde se ajusta el chasis con un valor de 6,604 MPa y un factor de seguridad de 3,23; en el análisis aerodinámico se encontró una fuerza de arrastre de 1N y una potencia de vuelo de 108,44 N. El UAV alcanzó una altura de vuelo de 48 m y una autonomía de vuelo de 17 minutos concluyendo que la tecnología de impresión 3D es una alternativa viable y de bajo costo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Unmanned aerial vehicle]]></kwd>
<kwd lng="en"><![CDATA[Polylactic acid]]></kwd>
<kwd lng="en"><![CDATA[3D printing]]></kwd>
<kwd lng="en"><![CDATA[Flight autonomy]]></kwd>
<kwd lng="es"><![CDATA[Vehículo aéreo no tripulado]]></kwd>
<kwd lng="es"><![CDATA[Ácido poliláctico]]></kwd>
<kwd lng="es"><![CDATA[Impresión 3D]]></kwd>
<kwd lng="es"><![CDATA[Autonomía de vuelo]]></kwd>
</kwd-group>
</article-meta>
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