(Universidad Nacional de Educación a Distancia (España), Universidad Politécnica de Madrid. Departamento de Ingeniería Mecánica, 2022) Mafla Yépez, Carlos; Castejón Sisamón, Cristina; Rubio Alonso, Higinio; Gómez, Leticia; Gómez, Leticia
Failure analysis of farm tractor´s engines and internal combustion engines generally are studied in various ways, but in different investigations vibration analysis is more frequently used due to its efficiency and because it is not invasive in the engine operation. In this investigation, the engine failures are studied based on the injectors, where the opening pressures were taken as the main failure, the vibration data was obtained by a sensor located in the cylinder block closest to the compression chamber where the expansion is generated and is the beginning of the work of the engine. The Fast Fourier Transform (FFT) was applied to obtain characteristics in each engine operating status (injector failures). With the statistical analysis, the characteristics are selected for the classification of the engine status and later failures prediction. The results were compared between the different variables and the literature, demonstrating the validity of the proposed method.
