Verificación del coeficiente de rozamiento para frenadas sobre pasto
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2013
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Universidad Autónoma de Entre Ríos. Facultad de Ciencia y Tecnología
Resumen
Cuando los investigadores de siniestros viales, necesitan realizar los cálculos físicos-matemáticos para determinar la velocidad de circulación de un vehículo en base a huellas de frenada, necesitan contar con dos datos imprescindibles, como ser: la longitud de las huellas de frenada y el tipo de superficie sobre la cual se estamparon, con estos datos se puede recurrir a la fórmula universal para el cálculo de velocidad. Otro de los datos requeridos es el coeficiente de rozamiento determinado por el tipo de superficie, para ello se recurren a tablas estandarizadas halladas en libros dedicados a la temática, donde se pueden encontrar los distintos valores y sus variantes. No obstante ello, se advirtió que para la superficie de pasto seco se estableció que el valor del coeficiente de rozamiento se encuentra entre el 0,50 y 0,54 sin especificar el tipo de pasto ni las variables para adoptar uno u otro extremo. Con esta investigación se pretende verificar si esos valores se repiten para la superficie de pasto seco, oriundo de la región geográfica de la Provincia de Entre Ríos, que solemos encontrar en las banquinas que bordean nuestras rutas. La pesquiza se realizó analizando datos de manera estadística, los mismos fueron obtenidos de experiencias realizadas en el predio del aeroclub ciudad de Paraná, exclusivamente para verificar el coeficiente de rozamiento para la superficie de pasto seco.
When the researchers of sinister vials, they need to perform the physical-mathematical calculations to determine the speed of movement of a vehicle based on traces of braking, They need to have two essential data, such as: the length of the traces of braking and the type of surface on which were stamped, With these data you can have recourse to the universal formula for calculation of speed. Another of the data required is the friction coefficient determined by the type of surface, this resort to standardized charts found in books devoted to the theme, where you can find the different values and its variants. Nevertheless, it was noted that for the surface of dry grass was determined that the value of the coefficient of friction is between 0.50 and 0.54 without specifying the type of grass or the variables to adopt one or another value. With this research is intended to check if these values are repeated for the surface of dry grass, a native of the geographical region of the Province of Entre Ríos, which we find in the shoulders that border our routes. The investigation was conducted by analyzing data statistical manner, the same were obtained from experiments conducted on the campus of the aeroclub city of Paraná, exclusively to verify the friction coefficient for the surface on grass.
When the researchers of sinister vials, they need to perform the physical-mathematical calculations to determine the speed of movement of a vehicle based on traces of braking, They need to have two essential data, such as: the length of the traces of braking and the type of surface on which were stamped, With these data you can have recourse to the universal formula for calculation of speed. Another of the data required is the friction coefficient determined by the type of surface, this resort to standardized charts found in books devoted to the theme, where you can find the different values and its variants. Nevertheless, it was noted that for the surface of dry grass was determined that the value of the coefficient of friction is between 0.50 and 0.54 without specifying the type of grass or the variables to adopt one or another value. With this research is intended to check if these values are repeated for the surface of dry grass, a native of the geographical region of the Province of Entre Ríos, which we find in the shoulders that border our routes. The investigation was conducted by analyzing data statistical manner, the same were obtained from experiments conducted on the campus of the aeroclub city of Paraná, exclusively to verify the friction coefficient for the surface on grass.
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Accidentología vial, Tráfico, Conducción, Accidentes de tránsito, Sistema de frenado, Cálculo de velocidad, Tipos de superficies, Frenadas sobre pasto