Análise de sensibilidade de indicadores de desempenho na equação da produtividade de caminhões basculantes : um estudo de caso

Abstract

This research was designed with the aim of knowing the sensitivity of the variables that make up the hourly productivity indicator of a transport fleet in a mining industry. The unit operations of mining of the iron ore industry were described, as well as the indicators that make up the equation of hourly productivity: the average transport distance, the average speed and the fixed times. The analysis was carried out through a documentary collection in the mine operation sector for the case study, where it was possible to define the oscillation domain of the listed indicators. The data used comprised the movement of a fleet of 100-ton trucks, from April 2021 to December 2021. After analyzing the data, it was possible to identify the sensitivity of each variable that makes up the hourly productivity indicator of the transport fleet. It can be concluded that despite the variations in the average transport distance determine greater gains in productivity, efforts must be concentrated for gains in average speed, since the average transport distance indicator is rigidly determined by the mining plans.