Developing an Intelligent Fault Diagnosis of MF285 Tractor Gearbox Using Genetic Algorithm and Vibration Signals

Ebrahim Ebrahimi, Payam Javadikia, Nasrolah Astan, Majid Heydari, Mojtaba Bavandpour, Mohammad Hadi Jalili, Ali Zarei

Department of Mechanical Engineering of Agricultural Machinery, East Azarbaijan Sience and Research Branch, Islamic Azad University, Tabriz, Iran.
Department of Mechanical Engineering of Agricultural Machinery, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran.
Department of Mechanical Engineering of Agricultural Machinery, Razi University, Kermanshah, Iran.
Department of Mechanical Engineering of Agricultural Machinery, Takestan Branch, Islamic Azad University, Takestan, Iran.

DOI: 10.4236/mme.2013.34022                

Abstract

This article investigates a fault detection system of MF285 Tractor gearbox empirically. After designing and constructing the laboratory set up, the vibration signals obtained using a Piezoelectric accelerometer which has been installed on the Bearing housings are related to rotary gear number 1 in two directions perpendicular to the shaft and in line with the shaft. The vector data were conducted in three different speeds of shaft 1500, 1000 and 2000 rpm and 130 repetitions were performed for each data vector state to increase the precision of neural network by using more data. Data captured were transformed to frequency domain for analyzing and input to the neural network by Fourier transform. To do neural network analysis, significant features were selected using a genetic algorithm and compatible neural network was designed with data captured. According to the results of the best output mode for each position of the sensor network in 1000, 1500 and 2000 rpm, totally for the six output models, all function parameters for MATLAB Software quality content calculated to evaluate network performance. These experiments showed that the overall mean correlation coefficient of the network to adapt to the mechanism of defect detection and classification system is equal to 99.9%.

Keywords

Fault Detection; Gearbox; Vibration Analysis; Genetic Algorithm

Conflicts of Interest

The authors declare no conflicts of interest.

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