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Tecnología en Marcha
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Tecnología en Marcha
Article . 2022
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Uso de regresión de soporte vectorial para el control de espuma metálica

Authors: Alexis Sanabria-Castro; Marcela Meneses-Guzmán; Bruno Chiné-Polito;

Uso de regresión de soporte vectorial para el control de espuma metálica

Abstract

El monitoreo de perfiles se enfoca en aquellas variables de proceso o producto que son caracterizadas por una relación funcional de esta variable respecto del tiempo o el espacio. El objetivo de este trabajo es desarrollar una metodología basada en Regresión de Soporte Vectorial, SVR, para el monitoreo de perfiles no lineales, e implementarla a los perfiles de densidad de un material celular, espuma metálica de aluminio. La forma de un perfil en control está asociada a ciertas características mecánicas del producto, por lo que un cambio significativo de su forma seria detectado como un fuera de control por un método de monitoreo diseñado para este fin; si esto sucediera, se puede concluir que las propiedades mecánicas de la espuma son diferentes a las requeridas. La metodología considera el cálculo de curvas percentiles que serán la base para definir los límites de un gráfico de control, la estimación de parámetros del modelo de SVR con un Kernel Gausseano y con la ayuda de validación cruzada; se evalúa el desempeño del gráfico de control establecido apoyados en la técnica de boostrapping. El método propuesto es sencillo de interpretar y práctico. De acuerdo con los resultados, si la forma del perfil de densidad llegara a cambiar más allá de la indicada variabilidad natural del perfil, el método implementado lo detectaría como fuera de control con un error tipo I de 0.341% (ARLreal= 293).

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Keywords

Technology, Support vector machines, profile monitoring, T, control estadístico de procesos, density profile, monitoreo de perfiles, Máquinas de soporte vectorial, máquinas de soporte de regresión, perfil de densidad, metal foam, espuma metálica, statistical process control, support regression machines

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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gold