MATLAB-Based Vibration Signal Processing for Fault Diagnosis
Keywords:Vibration Signal Processing, FFT, Dominant Frequencies, , PSD, CSD
Traditionally, vibration signal processing has been performed using analog and digital signal analyzers or writing code in intermediate and high-level computer languages. However, the advent of higher-level interpretive-based signal processing software products such as MATLAB has added a new dimension to vibration signal processing. This paper presents a method for analyzing motor vibration data using MATLAB. The method first pre-processes the vibration data to remove noise and baseline wander. Then, the frequency spectrum of the vibration signal is calculated using the Fourier transform. The frequency spectrum is then used to identify the dominant frequencies in the vibration signal. These dominant frequencies can be used to identify potential problems with the motor, such as bearing defects or misalignment. The method was studied on a set of vibration data collected from open source online data of a real motor. The results showed that the method was able to identify the dominant frequencies in the vibration signal accurately. The method was also able to identify the potential problems with the motor. This paper demonstrates the effectiveness of using MATLAB for analyzing motor vibration data. The method presented in this paper can be used to improve the reliability and efficiency of motor maintenance.
W. Zhu, H. Lin, W. Sun and J. Wei, “Vibration Performance of Traction Gearbox of a High-Speed Train: Theoretical Analysis and Experiments,” Actuators, vol. 12(103), pp. 1-34, 2023.
M. B. Joshi and K. S. Pujari, “Fault Diagnosis of High-Speed Rotating Machines Using MATLAB,” Diagnostyka, vol. 24(2), pp. 1-8, 2023.
S. Cho, K. Jeon and C. W. Kim, “Vibration Analysis of Electric Motors Considering Rotating Rotor Structure Using Flexible Multibody Dynamics-Electromagnetic-Structural Vibration Coupled Analysis,” Journal of Computational Design and Engineering, vol. 10, pp. 578–588, 2023.
Kang, S. G., La, J. P., Yoon, H. S., Choi, D. Y., & Park, K. H. “New Synthetic Heterodyne Laser Doppler Vibrometer for Measurement of Mechanical Vibrations with Submicron Amplitude,” Key Engineering Materials, vol. 381–382, pp. 43–46, 2008.
I. Howard, “Vibration Signal Processing Using MATLAB,” Acoustics Australia, vol. 23(1), pp. 9-13, 1995.
V. K. Ingle, and J. G. Proakis, Digital Signal Processing Using MATLAB, 3rd Ed. 3, Cengage Learning, 2011.
S. Graham Kelly, Advanced Vibration Analysis, CRC Press, Taylor & Francis Group, New York, 2006.
How to Cite
Copyright (c) 2023 AlamBiblilo Publishers
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.