A study of the tribological behaviour of piston ring/cylinder liner interaction in diesel engines using acoustic emission

Douglas, R M; Steel, John Alexander; Reuben, Robert Lewis

doi:10.1016/j.triboint.2006.01.005

Cited by 67 publications

(58 citation statements)

References 16 publications

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“…[V]. The use of the AE RMS has already been presented by several authors, who concluded the practicable and valuable results originating by using this parameter [8,[27][28][29][30][31][32]. In an additional step, the AE RMS of the acoustic emission signal is accumulated by taking the integral over time resulting in the value accumulated AE RMS.…”

Section: Ae Signal Evaluationmentioning

confidence: 99%

“…A correlation between AE and the frictional behavior in the fluid and mixed friction regime is presented in this study. Similar to [1], a more intense acoustic emission signal along with increasing speed was recorded which the authors linked to the increased number of collisions and intensity of impulses of fluid molecules resulting from the increased shear rate.The presented literature and further references [25][26][27][28][29][30][31][32] have successfully proven the use of AE analysis in tribological context providing deeper insights into and better understanding of tribological processes. In view of this, this study aims at using AE in establishing an additional tribological parameter.…”

Section: Introductionmentioning

confidence: 99%

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Expansion of the Metrological Visualization Capability by the Implementation of Acoustic Emission Analysis

Bergmann

Grün

Summer

et al. 2017

Advances in Tribology

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The acquisition and evaluation of acoustic emissions (AE) in tribology have proven to be a meaningful tool for condition monitoring and offer possibilities to deepen the understanding of tribological processes. The authors used this technology with the aim of expanding existing test methodologies towards increased visualization capability of tribological processes and investigated the correlation between tribological processes and acoustic emissions on a Ring-on-Disc and a close-to-component journal bearing test setting. The results of this study include the description of friction as well as wear processes and prove the usability of several AE evaluation parameters whereby a close correlation between AE and tribological processes can be shown. Consequently, it was possible to expand the visualization and evaluation capabilities of the test settings offering additional insights by making use of AE.

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Section: Ae Signal Evaluationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Expansion of the Metrological Visualization Capability by the Implementation of Acoustic Emission Analysis

Bergmann

Grün

Summer

et al. 2017

Advances in Tribology

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“…Shuster et al [10] demonstrated the usefulness of acoustic emission RMS measurements for studying the piston ring cylinder liner scuffing phenomenon based on the understanding that the AE can be induced by the friction between piston ring and cylinder liner segments. Douglas et al [7] used AE RMS and AE energy RMS measurements to provide information pertaining to the interaction between piston rings and cylinder liners in a range of diesel engines. However, the original AE signals processing methods mentioned above were hard to extract the feature about tribology of piston and cylinder system to detect the type of the friction.…”

Section: Acoustic Emission Generation Of Piston Assemblymentioning

confidence: 99%

“…Vibrations and deformations between contact surfaces are induced by alternating low and high pressures in the piston ring against the cylinder wall. The excessively high cylinder pressures also generate the high pressures between piston ring and cylinder wall, and cyclically varying sealing force exerted by the in-cylinder pressure on the piston rings was found to influence the resultant AE activities [7].…”

Section: Acoustic Emission Generation Of Piston Assemblymentioning

confidence: 99%

“…These researches indicate that the obvious bursts of AE events are caused by valve impacts and combustion. Douglas [7] reported that the continuous AE possibly induced by the ring/liner interaction related to asperity contacts between the ring-pack and cylinder liner. And the AE activity was found to be proportional to piston speed and pressure, indicating that the boundary friction acting upon the oil-control ring was the most likely AE source.…”

Section: Introductionmentioning

confidence: 99%

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Characterisation of acoustic emissions for the frictional effect in engines using wavelets based multi-resolution analysis

Wei

Wang

et al. 2015

2015 21st International Conference on Automation and Computing (ICAC)

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Abstract-The friction between piston ring-cylinder liner is a major cause of energy losses in internal combustion engines. However, no experimental method is available to measure and analyze the fictional behavior. This paper focuses on the investigation of using acoustic emission (AE) to characterize the friction online. To separate the effect relating to friction sources, wavelets multi-resolution analysis is used to suppress interfering AE events due to valve impacts and combustion progress. Then a wavelet envelope indicator is developed to highlight AE contents from friction induced AE contents. The results show that the AE contents in the middle strokes correlate closely with viscous friction process as their amplitudes exhibit a continuous profile similar to piston speed. Furthermore, the AE envelope indicator proposed can distinguish the differences between two types of lubrication oils, showing superior performance of AE based online lubrication diagnosis.

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Study on lubrication state of cylinder liner‐piston ring based on resistance measurement method

Liu

Chen

Yan

et al. 2020

Lubrication Science

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Real-time measurement of the lubrication state is one of the critical problems in studying the lubrication state and its transformation characteristics. Based on the experimental results, shrinkage resistance principle and Greenwood's contact theory, a mathematical model for cylinder liner-piston ring that can be used to measure the resistance of film thickness ratio is established. On this foundation, the correspondence between the film thickness ratio and the contact resistance for cylinder liner-piston ring was presented and the technical possibility to characterise the real-time lubrication state was provided. An experimental study for determining the lubrication state of cylinder linerpiston ring based on resistance measurement method was conducted on a reciprocating friction and wear tester to verify the applicability of resistance measurement method in cylinder liner-piston ring friction pair. Results show that the contact resistance method is reliable and practicable to determine the lubrication state of cylinder liner-piston ring friction pair.

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A study of the tribological behaviour of piston ring/cylinder liner interaction in diesel engines using acoustic emission

Cited by 67 publications

References 16 publications

Expansion of the Metrological Visualization Capability by the Implementation of Acoustic Emission Analysis

Expansion of the Metrological Visualization Capability by the Implementation of Acoustic Emission Analysis

Characterisation of acoustic emissions for the frictional effect in engines using wavelets based multi-resolution analysis

Study on lubrication state of cylinder liner‐piston ring based on resistance measurement method

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