Combustion parameters identification and correction in diesel engine via vibration acceleration signal

Zhao, Xinbing; Yong, Cheng; Ji, Shaobo

doi:10.1016/j.apacoust.2016.09.030

Cited by 31 publications

(16 citation statements)

References 21 publications

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“…The methods of engine vibroacoustic testing are based on two methods: accelerometry [43,44] and laser vibrometry [17]. The vibroacoustic signal analysis has, to date, been based mainly on the Fourier transform (as in this article), but also on other transforms, such as wavelet transform (to date, used in non-stationary signal analysis) [12].…”

Section: Methodsmentioning

confidence: 99%

“…For example, in [11], an attempt was made to identify the relationship between engine block vibrations and heat exchange. On the other hand, in works [12,13], the thermodynamic evaluation of combustion processes was made in relation to vibroacoustic signals. The description of the combustion process in a diesel engine in the context of vibration acceleration signals of the engine block was made in [14], and in [15], the general conditions of conducting an experiment with the use of the vibroacoustic technique to examine the characteristics of engine operation were described.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Diesel Engine Vibroacoustic Properties Powered by Bio and Standard Fuel

et al. 2021

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Alternative fuels appeared soon after the first internal combustion engines were designed. The history of alternative fuels is basically as long as the history of the automotive industry. Initially, fuels whose physicochemical properties allowed for a change in parameters of the combustion process in order to achieve greater efficiency and reliability were searched for. Nowadays, there are significantly more variables; in addition to the above mentioned parameters, alternative fuels are being sought that will ensure environmental protection during vehicle operation and improve the ergonomics of use. This article outlines the results of the authors’ own comparative tests of vibrations of a vibroacoustic character. Based on a popular engine model, the vibration–acoustic responses of a system powered by two types of fuel, namely, diesel and biodiesel (B10), are compared. The research consists of comparing vibrations in both time and frequency domains. In the case of the time domain, the evaluation was performed with vibrations as a function of engine torque and speed. In the case of frequency analysis, the focus was on changes in the frequency response for the tested fuels. The research shows that the profile of vibroacoustic vibrations changes in the case of biodiesel power supply in relation to standard fuel. The vibration profile changes significantly as a function of speed and only slightly in relation to the engine load. The results presented in this article show different vibroacoustic responses of an engine powered by diesel and biodiesel; the change is minor for lower speeds but significant (other harmonics are dominant) for higher speeds (changes in the dominant harmonic magnitude of up to 10% at a crankshaft speed of 3000 rpm).

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of Diesel Engine Vibroacoustic Properties Powered by Bio and Standard Fuel

et al. 2021

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“…Other authors on the other hand, dedicated efforts on identifying which are the main sources within the engine structure [92,96]. For instance, Zhao et al [96] proposed a close loop control for identifying the combustion parameters through the vibration signal of several accelerometers located at the engine surface.…”

Section: Impact On External-radiated Fieldmentioning

confidence: 99%

Computational assessment of combustion noise of automotive compression-ignited engines

Soriano¹

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derstanding the unsteady pressure field inside combustion chambers of compression ignition engines using a CFD approach". International J of Engine Research (available on-line), 2018. I would like to record my sincere gratitude to my advisor Prof. Alberto Broatch for his guidance and support during the chase of this research. A gratitude that also must be extended to Prof. Payri and Prof. Desantes on behalf of CMT-Motores Térmicos and Universitat Politècnica de València for offering me the chance to become part of this research group during these four years. I owe my most special thanks to Prof. Ricardo Novella for his advice and invaluable help in the most difficult moments but especially for the good ones we shared during the fruitless lunchtime discussions, sports sessions... I just can say, moltes gràcies per tot Rick.

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“…The cylinder head of the engine is affected by various sources of excitation, including fuel injection, combustion and injector needle seat impact, as well as transient shocks. All of these are all these energies that are periodically on the engine casing based on the angle of rotation of the crankshaft [8,9]. The four cylinders of the engine share a common head, and the head vibration acceleration sensor is installed in the middle position of the fourth head.…”

Section: Vibration Of Engine Head Analysismentioning

confidence: 99%

Impact of Fischer-Tropsch diesel and methanol blended fuel on diesel engine performance

Wang

Peng

et al. 2019

THERM SCI

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This paper discusses the impact of Fischer-Tropsch (F-T) diesel and methanol blended fuel, tentative engine was operated with fueled having F-T diesel and methanol blended fuel to compare the combustion and vibration characteristics. For this, 4100QBZL turbocharged diesel having parameters of F-T diesel fuel, FM5, FM10, FM15 methanol volume content was 5%, 10%, and 15%, respectively, have been selected for the experiment. Experimental studies have shown that when fueling with F-T diesel fuel, the ignition delay is shorter, the premixed combustion rate peak is lower, and vibration acceleration increases slightly than diesel fuel. Compared to the pure F-T diesel, the blended fuel has longer ignition delay period, higher the rate of pressure rise, combustion start point delayed, burning capacity increase, such as thermal efficiency is improved and vibration acceleration increased significantly.

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Combustion parameters identification and correction in diesel engine via vibration acceleration signal

Cited by 31 publications

References 21 publications

Comparison of Diesel Engine Vibroacoustic Properties Powered by Bio and Standard Fuel

Comparison of Diesel Engine Vibroacoustic Properties Powered by Bio and Standard Fuel

Computational assessment of combustion noise of automotive compression-ignited engines

Impact of Fischer-Tropsch diesel and methanol blended fuel on diesel engine performance

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