| dc.contributor.author | García León, Ricardo Andrés | |
| dc.contributor.author | Afanador García, Nelson | |
| dc.contributor.author | Gómez Camperos, July | |
| dc.coverage.spatial | Colombia | en_US |
| dc.date.accessioned | 2025-10-23T12:48:19Z | |
| dc.date.available | 2025-10-23T12:48:19Z | |
| dc.date.issued | 2021-10-13 | |
| dc.identifier.issn | 2311-5521 | en_US |
| dc.identifier.uri | https://repositorioinstitucional.ufpso.edu.co/xmlui/handle/20.500.14167/5913 | |
| dc.description.abstract | Las condiciones de operación durante el proceso de frenado en un automóvil afectan el contacto tribológico entre la pastilla y el freno de disco, influyendo así en los tiempos y distancias de frenado y, de manera más significativa, en la seguridad del proceso de frenado. Este trabajo matemático tuvo como objetivo proporcionar una visualización general del comportamiento mecánico, dinámico y térmico del freno de disco bajo diferentes condiciones de operación a través de mapas 2D de la potencia disipada, el tiempo de frenado y la distancia de frenado de un freno de disco con una hoja de ventilación tipo N-38. Sin embargo, la energía disipada en el freno de disco en términos de temperatura se analizó considerando la ley de enfriamiento de Newton y cálculos matemáticos a través de teorías clásicas del comportamiento dinámico y mecánico de los frenos de disco. Para este propósito, la Metodología de Superficie de Respuesta (MSR) y el modelo de ajuste de Mínimos Cuadrados Ponderados por la Distancia (MMPD) consideraron diferentes condiciones de operación del freno de disco. Los resultados demuestran que los frenos de disco pueden utilizarse eficazmente en condiciones operativas severas, con una velocidad de 100 km/h y una temperatura ambiente de 27 °C, sin afectar la seguridad de los ocupantes ni del sistema de frenado ni de la pastilla. Para las diferentes condiciones evaluadas, la temperatura instantánea alcanza valores de 182,48 y 82,94 °C, donde el valor más alto se encontró para una desaceleración total de 100 km/h a 0, lo que representa una distancia total de frenado de alrededor de 44,20 a 114,96 m dependiendo del ángulo de inclinación (θ). Además, la disipación de energía en los frenos de disco depende en gran medida de la geometría del disco, las palas y la pastilla, el tipo de material, los parámetros y las condiciones de operación del vehículo, como se puede verificar con un cálculo matemático para validar la contribución de la eficacia del proceso de frenado durante su funcionamiento real. | en_US |
| dc.language.iso | eng | en_US |
| dc.relation | https://www.mdpi.com/2311-5521/6/10/363 | en_US |
| dc.title | Mapas mecánicos y dinámicos de frenos de disco en diferentes condiciones de funcionamiento | en_US |
| dc.title.translated | Mechanical and dynamic maps of disc brakes under different operating conditions | en_US |
| dc.contributor.cvlac | Ricardo Andrés García León [0001454975] | en_US |
| dc.contributor.cvlac | Nelson Afanador García [0000226920] | en_US |
| dc.contributor.cvlac | July Gómez Camperos [0001164287] | en_US |
| dc.contributor.googlescholar | Ricardo Andrés García León [emeJT3sAAAAJ] | en_US |
| dc.contributor.googlescholar | Nelson Afanador García [8Uk1lqUAAAAJ] | en_US |
| dc.contributor.orcid | Ricardo Andrés García León [0000-0002-2734-1425] | en_US |
| dc.contributor.orcid | Nelson Afanador García [0000-0001-5463-2036] | en_US |
| dc.contributor.orcid | July Gómez Camperos [0000-0003-3894-144X] | en_US |
| dc.contributor.researchgate | Ricardo Andrés García León [Ricardo-Garcia-Leon] | |
| dc.contributor.scopus | Ricardo Andrés García León [57192545232] | en_US |
| dc.contributor.scopus | Nelson Afanador García [57202680756] | en_US |
| dc.contributor.scopus | July Gómez Camperos [57220550902] | en_US |
| dc.description.abstractenglish | The operating conditions during the braking process in an automobile affect the tribological
contact between the pad and disc brake, thus, influencing the times and distances of braking and, in
a more significant way, the safety of the braking process. This mathematical work aimed to provide a
general visualization of the disc brake’s mechanical, dynamic, and thermal behavior under different
operating conditions through 2D maps of the power dissipated, braking time, and braking distance of
a disc brake with a ventilation blade N- 38 type. However, the dissipated energy on the disc brake in
terms of temperature was analyzed considering Newton’s cooling law and mathematical calculations
through classical theories of the dynamic and mechanical behavior of the disc brakes. For this
purpose, the Response Surface Methodology (RSM) and DistanceWeighted Least Squares (DWLS)
fitting model considered different operating conditions of the disc brake. The results demonstrate
that the disc brakes can be used effectively in severe operational requirements with a speed of
100 km/h and an ambient temperature of 27 C, without affecting the occupant’s safety or the
braking system and the pad. For the different conditions evaluated, the instantaneous temperature
reaches values of 182.48 and 82.94 C, where the high value was found for a total deceleration to
100 km/h to 0, which represent a total braking distance of around 44.20 to 114.96 m depending on the
inclination angle ( ). Furthermore, the energy dissipation in the disc brakes depends strongly on the
disc, blades and pad geometry, the type of material, parameters, and the vehicle operating conditions,
as can be verified with mathematical calculation to validate the contribution of the effectiveness of
the braking process during its real operation. | en_US |
| dc.subject.proposal | Mapas | en_US |
| dc.subject.proposal | Desgaste | en_US |
| dc.subject.proposal | Fricción | en_US |
| dc.subject.proposal | Fundición gris | en_US |
| dc.subject.proposal | Temperatura | en_US |
| dc.subject.keywords | Maps | en_US |
| dc.subject.keywords | Wear | en_US |
| dc.subject.keywords | Friction | en_US |
| dc.subject.keywords | Gray cast iron | en_US |
| dc.subject.keywords | Temperature | en_US |
| dc.publisher.faculty | Facultad ingenierías | en_US |
| dc.type.redcol | http://purl.org/redcol/resource_type/ART | en_US |
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| dc.identifier.DOI | https://doi.org/10.3390/fluids6100363 | en_US |