Análisis de vibraciones en el motor de combustión interna J20-A A través de simulación de modos de fallas para contribuir el mantenimiento predictivo.

Abstract

In this current pilot project, vibration analysis is carried out in the internal combustion engine J20-A through running simulation failure modes to contribute to predictive maintenance techniques. First, it gave way to the study of the current situation of the internal combustion engine. Potential failure modes trials were performed as: advanced ignition and recoil start, injectors with plugging percentages, air filter clogging and exhaust air outlet. In order to measure each failure mode was used the Vibrachek technology to determine the vibration levels in the ten points of the engine. The data is collected to transfer the program MAINtraq Predictive 2.1 to evaluate at what exact point the vibration level is an acceptable value to be interpreted. For the reliability analysis of the experimental data it proceed to the use the software SPSS the value obtained from Alpha of Cronbach, is greater than 0.9 Which determine that data is at an excellent level of acceptability, showing that the data used are very consistent and statistically solid. The comparing the results were found denoting an anomaly in the air filter with a total velocity of 15mm / s, and in the exhaust was clearly observed as an increase in vibration with a speed of 17, 06mm / s while in the forward and reverse because the electronic system used there is a compensation in these parameters therefore the results do not see any major changes or differences, in the analysis of spectra obtained with the accelerometer in the engine are not relevant changes to cause the imbalance of the camshaft. It is always recommended to take the data at the point where you have the highest vibration value to make a comparison of values and appreciate the low and medium level of vibration and based to that data give a better interpretation.