<?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>S1405-77432016000100073</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Nueva metodología de diagnóstico de fallas en rodamientos en una máquina síncrona mediante el procesamiento de señales vibro-acústicas empleando análisis de densidad de potencia]]></article-title>
<article-title xml:lang="en"><![CDATA[Novel Methodology of Fault Diagnosis on Bearings in a Synchronous Machine by Processing Vibro-Acoustic Signals Using Power Spectral Density]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medrano-Hurtado]]></surname>
<given-names><![CDATA[Zulma Yadira]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Tello]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Sarduy]]></surname>
<given-names><![CDATA[Julio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vera-Pérez]]></surname>
<given-names><![CDATA[Maximiliano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Baja California  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Baja California Instituto de Ingeniería ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Cienfuegos  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Baja California  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<volume>17</volume>
<numero>1</numero>
<fpage>73</fpage>
<lpage>85</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-77432016000100073&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-77432016000100073&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-77432016000100073&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Se presenta una metodología novedosa para la detección de fallas en rodamientos en un generador síncrono, empleando señales de vibración capturadas a través de transductores de aceleración (acelerómetros piezoeléctricos) y acústicos (micrófonos omnidireccionales), para procesar las señales de vibración se emplea el algoritmo conocido como densidad espectral de potencia (PSD). Se analizan las señales de vibración resultantes de rodamientos, sin falla y con falla artificial, respectivamente. La falla artificial consistió en una grieta producida en la jaula de un rodamiento SKF6303-2RSH. Este método permite la utilización de micrófonos para analizar la vibración de las máquinas lo que representa no tener que montar ningún tipo de transductor en la máquina como sí ocurre con la técnica convencional de detección de fallas a través de la utilización de acelerómetros, además de ser un método que puede detectar una falla en la jaula del rodamiento.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: This work presents a novel methodology for detecting faults in bearings in a synchronous generator, using vibration signals captured through acceleration transducer (piezoelectric accelerometers) and acoustic transducer (omnidirectional microphone), to process vibration signals using the algorithm known as power spectral density (PSD). It analyzes vibration signals resulting from bearings, without fault and with artificial fault, respectively. The artificial fault consisted in a crack produced in a cage of a SKF6303-2RSH bearing. This method allows the utilization of microphones to analyze the vibration of machines which represents not having to mount any type of transducer on the machine as if occurs with the conventional technique of fault detection through the use of accelerometers, in addition to be a method that can detect a fault in the bearing cage.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[densidad espectral de potencia]]></kwd>
<kwd lng="es"><![CDATA[acelerómetro piezoeléctrico]]></kwd>
<kwd lng="es"><![CDATA[micrófonos omnidireccionales]]></kwd>
<kwd lng="es"><![CDATA[falla]]></kwd>
<kwd lng="es"><![CDATA[jaula]]></kwd>
<kwd lng="es"><![CDATA[rodamiento]]></kwd>
<kwd lng="en"><![CDATA[spectral density of power]]></kwd>
<kwd lng="en"><![CDATA[piezoelectric accelerometer]]></kwd>
<kwd lng="en"><![CDATA[omni-directional microphones]]></kwd>
<kwd lng="en"><![CDATA[failure]]></kwd>
<kwd lng="en"><![CDATA[cage bearing]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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