Detecção de falhas em sistemas de transmissão de potência por correias trapezoidais por meio de análise do sinal vibratório

Abstract

As a form of predictive maintenance, vibration signal analysis has played, through the years, an important role in the industry. To analyse an equipment performance without needing to stop its operation raises productivity and decreases the production costs. This works aims to provide a guide to the fault detection in power transmission belts, by means of using the vibration signal analysis. The theoretical part of this work provides, by means of using the governing differential equation of the belt dynamics, a computational simulation based on inputs like belt tension, material elasticity and other parameters. The experimental part aims at the analysis of a number of belt faults, as well as a number of operation mistakes made in the use of the belts, such as insufficient or excessive tensioning and operation between two misaligned axes. In all cases, the vibration signal analysis in the time and in the frequency domain, by means of using the Fast Fourier Transform (FFT) are used, such as other signal processing techniques. As a whole, this work intends to provide a guide for the vibration signal analysis generated in V-belts, collected at the bearing supports where the pulleys are mounted.