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Brake discs: A technological review from its analysis and assessment

García León, Ricardo Andres; Florez, Eder; Suárez Quiñones, Alvaro Enrique (Informador TécnicoColombia, 2019-10-31)

Braking systems are undoubtedly the most important component for road safety, since it determines the total or partial stop of a vehicle and, therefore, guarantees the physical integrity of passengers. Normally, the front ...
Influencia del clima, uso del suelo y profundidad sobre el contenido de carbono orgánico en dos pisos altitudinales andinos del departamento Norte de Santander, Colombia

Valenzuela Balcázar, Ibonne Geaneth; Visconti Moreno, Efrain Francisco (Revista Colombiana De Ciencias HortícolasColombia, 2018-05-02)

El incremento y estabilización del carbono orgánico del suelo (COS) representa una alternativa viable para la mitigación del efecto invernadero. Pero el COS es severamente afectado por los cambios del suelo, existiendo ...
Optimization of the auxiliary ventilation system, based on experiments executed on a ventilation test bench for mines

Castro Duque, Yesid (DYNAColombia, 2018-10-01)

In this study, the simulation results of the parameters concerning mine ventilation on a test bench are presented. Said investigation incorporated the previous design and implementation of a monitoring system at the ...

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Brake discs: A technological review from its analysis and assessment
...
García León, Ricardo Andres | 2019-10-31

Braking systems are undoubtedly the most important component for road safety, since it determines the total or partial stop of a vehicle and, therefore, guarantees the physical integrity of passengers. Normally, the front brake discs and the remaining percentage absorb 70% of the kinetic energy produced within a vehicle by the rear brake discs, which tend to have the formof a drum brake. These systems benefit from friction to stop a moving vehicle, under the umbrella of hydraulic pressure that pushes the brake pads against the iron-cast disk. In this document, concepts of famous authors around the world on analysis and evaluation of brake discs are provided, which are carried out using a descriptive methodology and an estimation of the characteristics of the brake disc. The review is carried out in computer assisted design through several existing CAD software in the industry, as the main methodology applied to the development of certain research projects, where different geometric characteristics of the brake discs are considered, as well as problems related to wear and corrosion. This research project has shown that it is vital to incorporate existing computer assisted design software to predict performance, improve components and optimize the functionality of the brake system. In this way, road traffic safety and systems efficiency are achieved, which are a matter of great importance for the industry. It is vital to analyze brake systems through Finite Element Analysis (FEA), with the intention of achieving a broader vision of its performance, since the information collected reveals that the geometric characteristics of the brake and cooling ducts influence the heat dissipation. It depends on the form, the type of material and the application, the heat generated between the pad and the brake. Therefore, the heat is dissipated rapidly according to the analysis performed mathematically by the researchers, which are compared with the made in computer assisted design software.

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Influencia del clima, uso del suelo y profundidad sobre el contenido de carbono orgánico en dos pisos altitudinales andinos del departamento Norte de Santander, Colombia
...
Valenzuela Balcázar, Ibonne Geaneth | 2018-05-02

El incremento y estabilización del carbono orgánico del suelo (COS) representa una alternativa viable para la mitigación del efecto invernadero. Pero el COS es severamente afectado por los cambios del suelo, existiendo controversias sobre cuáles tipos de uso de la tierra favorecen el secuestro de carbono. El clima tiene efecto importante sobre la dinámica del COS, por tanto el efecto generado por el uso y manejo del suelo es distinto en climas fríos y cálidos. Para entender como los factores clima, uso del suelo y profundidad del suelo, afectan la dinámica del COS en dos lugares del departamento de Norte de Santander en Colombia, se evaluaron propiedades físicas (arenas, limos y arcillas, densidad aparente) y propiedades químicas (pH, conductividad eléctrica, capacidad de intercambio catiónico y saturación de bases). Se determinó el contenido de carbono orgánico total (COT), fracción ligera (CO de FL), fracción húmica (CO de FH) y biomasa microbiana (CO de BM). Estas evaluaciones se realizaron en dos climas contrastantes (frío y cálido), tres tipos de uso del suelo (bosque, pasturas y cultivo intensivo) y tres profundidades (0 a 5 cm, 5 a 10 cm y 10 a 20 cm). Se encontró que hay mayor carbono orgánico en todos los compartimientos (COT, CO de BM, CO de FL y CO de FH) del suelo en clima frío. Los usos del suelo en bosque y pastura, son más favorables para el almacenamiento de COS en clima frío, mientras en cultivo intensivo genera menor contenido de COT, CO de FL y CO de BM. El índice de humificación y el CO de FH fueron mayores en cultivo intensivo de clima cálido.

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Optimization of the auxiliary ventilation system, based on experiments executed on a ventilation test bench for mines
...
Castro Duque, Yesid | 2018-10-01

In this study, the simulation results of the parameters concerning mine ventilation on a test bench are presented. Said investigation incorporated the previous design and implementation of a monitoring system at the laboratory. This was in order to calculate the fan efficiency, based on electrical measurements, and fluid mechanics (Bernoulli theory), and whose results can be observed in real time on a computer or through other similar means. The designed system monitors parameters present in the atmosphere of the test bench’s duct, such as temperature, air pressure, methane gas concentration, and electrical variables like voltage and current. The aforementioned observation is done through a graphical interface designed with LabView 2011 software. Tests were performed varying the accessories. The reduction percentage, allows one to infer that the duct section was adequately designed.

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Brake discs: A technological review from its analysis and assessment

Influencia del clima, uso del suelo y profundidad sobre el contenido de carbono orgánico en dos pisos altitudinales andinos del departamento Norte de Santander, Colombia

Optimization of the auxiliary ventilation system, based on experiments executed on a ventilation test bench for mines

Envíos recientes

Brake discs: A technological review from its analysis and assessment

Influencia del clima, uso del suelo y profundidad sobre el contenido de carbono orgánico en dos pisos altitudinales andinos del departamento Norte de Santander, Colombia

Optimization of the auxiliary ventilation system, based on experiments executed on a ventilation test bench for mines

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Browsing by Subject "temperature"

Brake discs: A technological review from its analysis and assessment ﻿

Influencia del clima, uso del suelo y profundidad sobre el contenido de carbono orgánico en dos pisos altitudinales andinos del departamento Norte de Santander, Colombia ﻿

Optimization of the auxiliary ventilation system, based on experiments executed on a ventilation test bench for mines ﻿

Envíos recientes

Brake discs: A technological review from its analysis and assessment

Influencia del clima, uso del suelo y profundidad sobre el contenido de carbono orgánico en dos pisos altitudinales andinos del departamento Norte de Santander, Colombia

Optimization of the auxiliary ventilation system, based on experiments executed on a ventilation test bench for mines

Portales Institucionales

Brake discs: A technological review from its analysis and assessment

Influencia del clima, uso del suelo y profundidad sobre el contenido de carbono orgánico en dos pisos altitudinales andinos del departamento Norte de Santander, Colombia

Optimization of the auxiliary ventilation system, based on experiments executed on a ventilation test bench for mines