Abstract
This paper analyzes variability and uniqueness of a combustion process in the spark ignition radial engine having nine cylinders. In the case of single cylinder disturbances, multifractal approach is proposed to identify faults in the measured cylinder pressure. For better clarity, the pressure cyclic response is illustrated by means of wavelet results. The examined engine was powered by an electronic fuel injection, giving the possibility of varying doses supplied to the individual cylinders.
About this article
Received
February 4, 2012
Accepted
May 14, 2012
Published
June 30, 2012
Keywords
spark ignition engine dynamics
cycle-to-cycle pressure oscillations
wavelets
nonlinear vibrations
Copyright © 2012 Vibroengineering
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
