Cálculo dinâmico de transportadores de correia: uma análise comparativa ao cálculo estático corroborada por medições de campo

Abstract

Belt conveyors are equipment for the transport of materials widely used in various branches of industry. The conveyors design is governed by international standards, which define the minimum requirements to be considered in the calculation and design. These standards, however, have its limitations, covering only basic principles and limited to the static calculation, where the elastic response of the belt is not consideredand the analysis of transient regimes is quite limited. As the conveying capacity, the length and complexity of the conveyors increases, the dynamic analysis is required. In the dynamic calculation, which is done through software using a complex mathematical model, it is possible to simulate in a very realistic way the starting and stopping control logic. It must be ensured, however, that the equipment operation at the end of theprocess presents similar parameters to those considered in the calculation, since various factors on the assembly and drive parameterization may influence so that the actual conveyor operation is significantly different to simulated. Adjustments made during field measurements, where the main operating parameters are checked, are the most effective way to set the operation of the equipment, ensuring a safe and reliable operational. This paper will approach the static calculation and its limitations, applications and possibilities of dynamic analysis, a case study showing the different results obtained for each method and results of field measurements performed to obtainthe conveyor operation in accordance to the design parameters.