Misfire detection of locomotive diesel engine by non-linear analysis

Boguś, Piotr; Merkisz, Jerzy

doi:10.1016/j.ymssp.2004.06.004

Cited by 45 publications

(26 citation statements)

References 14 publications

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“…Obtaining an estimate of the prevailing load torque [7,8] uses the fact that the instantaneous torque from the engine is zero at topdead center (TDC) and bottom-dead-center (BDC). In [9], misfire was simulated by disconnection of fuel supply of one cylinder of the engine which describes the measurements of vibro-acoustic exhaust locomotive engine signals for misfire phenomenon simulation and some results of their nonlinear analysis. Instead of estimating the engine load torque [10] proposed an observer-based method, which uses the measured engine load torque directly to reconstruct the cylinderwise net-indicated torques of a six-cylinder engine.…”

Section: Introductionmentioning

confidence: 99%

Fault Detection of Inline Reciprocating Diesel Engine: A Mass and Gas-Torque Approach

Gawande¹,

Navale²,

Nandgaonkar³

et al. 2012

Advances in Acoustics and Vibration

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Early fault detection and diagnosis for medium-speed diesel engines are important to ensure reliable operation throughout the course of their service. This work presents an investigation of the diesel engine combustion-related fault detection capability of crankshaft torsional vibrations. Proposed methodology state the way of early fault detection in the operating six-cylinder diesel engine. The model of six cylinders DI Diesel engine is developed appropriately. As per the earlier work by the same author the torsional vibration amplitudes are used to superimpose the mass and gas torque. Further mass and gas torque analysis is used to detect fault in the operating engine. The DFT of the measured crankshaft's speed, under steady-state operating conditions at constant load shows significant variation of the amplitude of the lowest major harmonic order. This is valid both for uniform operating and faulty conditions and the lowest harmonic orders may be used to correlate its amplitude to the gas pressure torque and mass torque for a given engine. The amplitudes of the lowest harmonic orders (0.5, 1, and 1.5) of the gas pressure torque and mass torque are used to map the fault. A method capable to detect faulty cylinder of operating Kirloskar diesel engine of SL90 Engine-SL8800TA type is developed, based on the phases of the lowest three harmonic orders.

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Section: Introductionmentioning

confidence: 99%

Fault Detection of Inline Reciprocating Diesel Engine: A Mass and Gas-Torque Approach

Gawande¹,

Navale²,

Nandgaonkar³

et al. 2012

Advances in Acoustics and Vibration

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“…In order to develop effective control strategies for efficient combustion, it is important to understand the dynamics of cycle-to-cycle pressure variations [4][5][6]. Earlier studies on pressure fluctuations were carried out primarily in gasoline and diesel engines [7][8][9][10][11][12][13][14][15][16][17][18]. Using the methods of nonlinear dynamics and other techniques, researchers have investigated the complex dynamics of pressure fluctuations in these engines, including the possibility of chaotic oscillations [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Earlier studies on pressure fluctuations were carried out primarily in gasoline and diesel engines [7][8][9][10][11][12][13][14][15][16][17][18]. Using the methods of nonlinear dynamics and other techniques, researchers have investigated the complex dynamics of pressure fluctuations in these engines, including the possibility of chaotic oscillations [10][11][12][13][14][15][16]. The dynamics of pressure variations in natural gas-fired engines have also been analyzed by similar methods [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Analysis of pressure fluctuations in a natural gas engine under lean burn conditions

Sen

Litak

Yao

et al. 2010

Applied Thermal Engineering

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We have investigated the cycle-to-cycle pressure fluctuations in a natural gas engine under lean burn conditions. In particular, we have examined the dynamics of the indicated mean effective pressure (IMEP) variations for four different values of the equivalence ratio. For each equivalence ratio, we used a continuous wavelet transform to identify the dominant spectral modes and the number of cycles over which these modes may persist. Our results reveal that when the mixture is not so lean, the IMEP undergoes persistent low frequency oscillations together with high frequency intermittent fluctuations. For leaner mixtures, the low frequency periodicities tend to be less significant, but high frequency intermittent oscillations continue to be present. When the mixture is made sufficiently lean, high-frequency oscillations become persistent, together with weak low frequency variations reflecting weak combustion. These results may be useful for understanding the long-term variability of the pressure fluctuations. They can also be used to develop effective control strategies for improving the performance of natural gas-fired engines under lean burn conditions.

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“…Due to the continuous development of the automotive industry, modern vehicles emit less harmful compounds, and this reduces the interest in such solutions. As shown in figure 5 the structure of vehicles in terms of categories issue is at a good level and as indicated ( and Merkisz [19]) will be subject to a significant improvement. It is worth looking for and implementing solutions based on other means of transport.…”

Section: Resultsmentioning

confidence: 76%

“…In the later research model will be developed and simulations will be carried out in the application for the city of Warsaw (Poland). Emissions of toxic compounds in relation to the vehicle category (research for the Poznan agglomeration) [19].…”

Section: Resultsmentioning

confidence: 99%

Holistic approach to the ecological cargo distribution in urban areas with the use of multi-modal transport

Jacyna¹,

Szczepański²

2013

WIT Transactions on the Built Environment

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Due to the continuous development of cities and growing demand for cargo transportation, it is necessary to develop and implement new concepts for distribution. The paper presents the concept of a hierarchical cargo distribution in the distribution system using multi-modal transport. This approach involves the use of trams and electric vehicles. It is justified from the point of view of the European Union's strategy related to lowering emissions of toxic compounds. The use of such means of transport not only has a positive impact on the ecology, but also on the social development of cities and the living conditions of the inhabitants. The presented concept includes the use of cargo consolidation centers located on the outskirts of cities. The city was divided into three zones with different traffic characteristics and the possibility of dynamically change the areas size occupied by them. The use of different means of transport needed to take account of appropriate transport infrastructure like sidings (loading track) located within the city. This article presents a mathematical model of that distribution system. Linear and point infrastructure and other system components like means of transport were characterized. Constraints arising from the technical and legal conditions were identified. The considerations presented in this article represent an interesting approach to deliveries in urban areas. Positive and negative aspects of the used approach were presented in the paper.The developed concept is a new approach to the cargo distribution with a positive impact on reducing exhaust emissions in cities. Article presents the part of research in the "EMITRANSYS" project implemented by the Faculty of Transport in Warsaw University of Technology and the Poznan University of Technology.

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Misfire detection of locomotive diesel engine by non-linear analysis

Cited by 45 publications

References 14 publications

Fault Detection of Inline Reciprocating Diesel Engine: A Mass and Gas-Torque Approach

Fault Detection of Inline Reciprocating Diesel Engine: A Mass and Gas-Torque Approach

Analysis of pressure fluctuations in a natural gas engine under lean burn conditions

Holistic approach to the ecological cargo distribution in urban areas with the use of multi-modal transport

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