Analysis of cycle-to-cycle pressure oscillations in a diesel engine

In this paper we study the fluctuations of mean indicated pressure (MIP) in a diesel engine. Using recurrence plots, recurrence quantification analysis and continuous wavelet transform, we investigate the cycle-to-cycle pressure variations for six rotational speeds of the crankshaft. We find that de...

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Bibliographic Details
Published in:Mechanical systems and signal processing 2008-02, Vol.22 (2), p.362-373
Main Authors: Sen, Asok K., Longwic, Rafal, Litak, Grzegorz, Górski, Krzysztof
Format: Article
Language:English
Subjects:
Applied sciences
Diesel engine
Engines and turbines
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Internal combustion engines: gazoline engine, diesel engines, etc
Measurement and testing methods
Mechanical engineering. Machine design
Physics
Pressure fluctuations
Recurrence plots
Recurrence quantification analysis
Solid mechanics
Structural and continuum mechanics
Wavelet analysis
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Summary:In this paper we study the fluctuations of mean indicated pressure (MIP) in a diesel engine. Using recurrence plots, recurrence quantification analysis and continuous wavelet transform, we investigate the cycle-to-cycle pressure variations for six rotational speeds of the crankshaft. We find that depending on the speed of rotation, the pressure variations may have a strongly periodic component and/or be intermittent. The strong periodicities appear in low-frequency bands and may persist over many cycles, whereas the intermittency is present at higher frequencies. The results may be useful to develop effective control strategies for efficient engine performance.
ISSN:0888-3270
1096-1216
DOI:10.1016/j.ymssp.2007.07.015