Publicación: Evaluación de los parámetros dinámicos y de recolección de energía vibracional en un modelo de superestructura ferroviaria
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2022
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info:eu-repo/semantics/openAccess
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['Universidad Nacional de Educación a Distancia (España)', 'Universidad Politécnica de Madrid. Departamento de Ingeniería Mecánica']
Resumen
En el presente artículo, se investigó de forma analítica el rendimiento de un recolector de energía vibracional piezoeléctrico aplicando una fuerza armónica sinusoidal. Se representó el montaje del material piezoeléctrico en un modelo analítico equivalente de vía férrea convencional, a través de un sistema de masas, resortes y amortiguadores de dos grados de libertad. La simulación del modelo de vía y piezoeléctrico se lo realiza en Matlab para obtener los parámetros de dimensionamiento del área y el espesor del material piezoeléctrico que generan una potencia de salida de 0,075 mW y un voltaje RMS de salida de 275,17 V en el pico más alto de 42,42 Hz para alimentar de energía a un nodo de red de sensores inalámbricos.
In this article, the performance of a piezoelectric vibrational energy accumulator generated by a passing train was investigated analytically. The assembly of the piezoelectric material on a conventional railroad track was represented with the help of SolidWorks software, then an equivalent model was made through a system of masses, springs and dampers with two degrees of freedom to obtain the mathematical model that governs the system and thus carry out the simulation in Matlab with the main parameters. An output power of 0.075 mW and an output RMS voltage of 275.17 V at the highest peak of 42.42 Hz were obtained. Other parameter values were also taken and proceeded to simulate, it was observed that high output power values can be obtained by modifying the sizing of the area and thickness of the piezoelectric material.
In this article, the performance of a piezoelectric vibrational energy accumulator generated by a passing train was investigated analytically. The assembly of the piezoelectric material on a conventional railroad track was represented with the help of SolidWorks software, then an equivalent model was made through a system of masses, springs and dampers with two degrees of freedom to obtain the mathematical model that governs the system and thus carry out the simulation in Matlab with the main parameters. An output power of 0.075 mW and an output RMS voltage of 275.17 V at the highest peak of 42.42 Hz were obtained. Other parameter values were also taken and proceeded to simulate, it was observed that high output power values can be obtained by modifying the sizing of the area and thickness of the piezoelectric material.
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Categorías UNESCO
Palabras clave
piezoeléctrico, parámetros, potencia, voltaje
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Centro
E.T.S. de Ingenieros Industriales
Departamento
Mecánica