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Diagnostics of a combustion process in the aircraft radial engine
Author(s) -
Gęca Michał,
Litak Grzegorz,
Wendeker Mirosław,
Jakliński Piotr,
Czarnigowski Jacek,
Pietrykowski Konrad
Publication year - 2009
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200910308
Subject(s) - cylinder , nonlinear system , wavelet , combustion , multifractal system , mechanics , series (stratigraphy) , automotive engineering , control theory (sociology) , physics , engineering , computer science , mechanical engineering , mathematics , chemistry , mathematical analysis , artificial intelligence , geology , organic chemistry , control (management) , paleontology , fractal , quantum mechanics
Abstract We present the statistical nonlinear analysis of time series applied to indicated combustion pressure. Using nonlinear methods we analyzed dynamics of a multi cylinder aircraft radial engine in the presence of cyclic perturbations in a single cylinder. The perturbations have been caused by variation of an air/fuel ratio via injection timing. Identification of the disturbed cylinder has been done successfully by adopting wavelet and multifractal analysis. (© 2009 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)