An Analysis of Vehicle Engine Vibration Signals with Digital Order Tracking Approaches

Purchase on Springer.com

$29.95 / €24.95 / £19.95*

* Final gross prices may vary according to local VAT.

Get Access

Abstract

This chapter presents an application of Digital Order Tracking to vibration signal analysis of automobile engines. By using a tacho probe to detect the variation of engine speeds and an accelerometer to collect the vibration signals of the engine,the FFT-based analysis are performed in order spectra. Data processing is implemented by digital manipulation—adding zeros, interpolations, oversampling and resampling. Zoom factor D and decimation d are thoughtfully selected. A comparisons between tracking and non-tracking spectra is made and the order spectra are plotted in different forms. Referring to the analyzed results, a successful engine diagnoses have been presented.