Implementación de un módulo de simulación para el diagnóstico vibracional de la excentricidad de rotores para el rotor kit del laboratorio de diagnóstico técnico y eficiencia energético

Abstract

In this work, the simulation module for the kit rotor of the Technical Diagnosis and Energy Efficiency Laboratory was implemented. It allowed to simulate and diagnose the eccentricity of rotors and differentiate from other failure modes that occur as unbalance and mechanical slack. For this study, four pulleys with different eccentricity measurements were generated, for unbalancing nylon discs. For the mechanical slack, a bolt at the base of the bearing was loosened. The interpretation and analysis of the data were carried out using the Maintraq Viewer and Maintraq Predictive software, which allowed showing values of frequency, amplitudes, phase angles and particular waves measured at 60 Hz. For this purpose, the Vibracheck 200 equipment was used. Before practice with eccentric rotors, vibrational data were taken with a faultless rotor to obtain a characteristic spectrum that serves as a reference for comparison with the other resulting spectra. With the construction of the module and the results obtained, the interpretation of the representative spectra and phase angles of each failure mode was carried out. It was concluded that the difference between these can be identified by their phase shift, that is, for eccentricity the angles are different in 0° or 180°, for unbalance angles of 90° and for mechanical looseness the angles are between 90 ° to 180° with tolerances of ±30. A laboratory guide with instructions for data collection and description was developed. It is recommended that prior to taking the measurement, align the module and relate the spectra and phase angles with the Charlotte charts for a better support of the investigation.