A brief introduction to nonlinear time series analysis and recurrence plots

B Goswami - Vibration, 2019 - mdpi.com
Nonlinear time series analysis gained prominence from the late 1980s on, primarily because
of its ability to characterize, analyze, and predict nontrivial features in data sets that stem …

Characterization of cycle-to-cycle variations in a natural gas spark ignition engine

M Reyes, FV Tinaut, B Giménez, A Pérez - Fuel, 2015 - Elsevier
In this work a study of the influence of the fuel/air equivalence ratio and engine rotational
speed on the cycle-to-cycle variations in combustion in a natural gas spark ignition engine is …

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

AK Sen, R Longwic, G Litak, K Górski - Mechanical Systems and Signal …, 2008 - Elsevier
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 …

Machine learning–based analysis of in-cylinder flow fields to predict combustion engine performance

A Hanuschkin, S Schober, J Bode… - … Journal of Engine …, 2021 - journals.sagepub.com
Cycle-to-cycle variations in an optically accessible four-stroke direct injection spark-ignition
gasoline engine are investigated using high-speed scanning particle image velocimetry and …

Wavelet analysis of cycle-to-cycle pressure variations in an internal combustion engine

AK Sen, G Litak, R Taccani, R Radu - Chaos, Solitons & Fractals, 2008 - Elsevier
Using a continuous wavelet transform we have analyzed the cycle-to-cycle variations of
pressure in an internal combustion engine. The time series of maximum pressure variations …

Analysis of heat release dynamics in an internal combustion engine using multifractals and wavelets

AK Sen, G Litak, CEA Finney, CS Daw, RM Wagner - Applied Energy, 2010 - Elsevier
In this paper we analyze data from previously reported experimental measurements of cycle-
to-cycle combustion variations in a lean-fueled, multi-cylinder spark-ignition (SI) engine. We …

Analysis of the nonlinear dynamics of inter-cycle combustion variations in an ethanol fumigation-diesel dual-fuel engine

LP Yang, TA Bodisco, A Zare, N Marwan, T Chu-Van… - Nonlinear …, 2019 - Springer
The nonlinear dynamics of a combustion system in a modern common-rail dual-fuel engine
has been studied. Using nonlinear dynamic data analysis (phase space reconstruction …

Multi-scale dynamics for a lean-burn spark ignition natural gas engine under low load conditions

SF He, P Tunestål, SF Ding, SL Ding, JS Gao, EZ Song - Fuel, 2023 - Elsevier
This work investigates the multi-scale dynamics of the combustion system in a lean-burn
spark ignition natural gas engine using different gas injection timings (GIT). The in-cylinder …

Investigation on nonlinear dynamic characteristics of combustion instability in the lean-burn premixed natural gas engine

SL Ding, EZ Song, LP Yang, G Litak, C Yao… - Chaos, Solitons & …, 2016 - Elsevier
In this paper, the nonlinear dynamic characteristics of combustion instability in the natural
gas engine were investigated. The experiments covered the whole excess air ratio (λ) in …

Combustion process in a spark ignition engine: analysis of cyclic peak pressure and peak pressure angle oscillations

G Litak, T Kamiński, J Czarnigowski, AK Sen… - Meccanica, 2009 - Springer
In this paper we analyze the cycle-to-cycle variations of peak pressure p max and peak
pressure angle α pmax in a four-cylinder spark ignition engine. We examine the …