Análisis acústico del uso de neumáticos reciclados en vías férreas = Acoustic analysis of the use of recycled tires on railways.
DOI:
https://doi.org/10.20868/ade.2021.4586Keywords:
Neumático reciclado, análisis acústico, elastómero, vibración, validaciones, Recycled tires, acustic analysis, elastomer, vibration, validationsAbstract
La presente investigación consiste en el desarrollo de un novedoso material elastomérico fabricado a partir del reciclado de neumáticos. Este material se emplea como atenuador de vibraciones en sistemas comúnmente usados en las líneas férreas. Una vez definida la rigidez estática del sistema y caracterizados los componentes elásticos del conjunto, se fabricaron cuatro prototipos a escala real para validar su comportamiento acústico. Tras los ensayos realizados, se observa que este material sufre un proceso de flexibilización, en lugar del habitual proceso de rigidización en cauchos sintéticos, debido a los efectos derivados de la fatiga. Los resultados numéricos confirman la viabilidad de este nuevo eco-material para su uso como atenuador de vibraciones en líneas ferroviarias.
Abstract
This research consists of the development of a novel elastomeric material manufactured from tyre recycling. This material is used as a vibration attenuator in systems commonly used in railway lines. Once the static rigidity of the system was defined and elastic componennts of the assembly were characterized, four full-scale prototypes were manufactured for validate their acoustic behavior. After tests carried out, it is observed that this material undergoes a process of flexibility, instead of the usual stiffening process in synthetic rubbers, due to the fatigue-derived effects. The numerical results confirm the feasibility of this new eco-material for use as a vibration attenuator on railway lines.
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References
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