Application of Wavelet Analysis in Truck Cab Vibration Signal Processing

Paper #:
  • 2012-01-2011

Published:
  • 2012-09-24
DOI:
  • 10.4271/2012-01-2011
Citation:
Zhang, H., Guo, X., Fang, Z., and Xu, G., "Application of Wavelet Analysis in Truck Cab Vibration Signal Processing," SAE Technical Paper 2012-01-2011, 2012, https://doi.org/10.4271/2012-01-2011.
Pages:
14
Abstract:
The basic principle of wavelet transform is presented and the method of wavelet theory is used in vibration signal analysis of vehicle in this paper. The vibration signals which generated in the locations such as cab floor, engine, transmission, band spring and frame under the usual work condition are measured by the vibration test system. The vibration signals are decomposed with the principle of wavelet decomposition at level six, and eigenvectors of signal energy are gained. According to the correlation coefficient of eigenvectors of signal energy distribution, two signals correlativity is determined. It could be an effective method that identificate the main vibration source.
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