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Investigation into the Vibrational Responses of Cylinder Liners in an IC Engine Fueled with Biodiesel

Li, Guoxing, Gu, Fengshou, Wang, Tie, You, Jianjun and Ball, Andrew (2017) Investigation into the Vibrational Responses of Cylinder Liners in an IC Engine Fueled with Biodiesel. Applied Sciences, 7 (7). p. 717. ISSN 2076-3417

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The paper presents a study of the relationship between the combustion behaviour and vibration response of IC engines fueled with biodiesel based on finite element modelling along with
experimental evaluation. An improved FE model is established and validated to predict the
dynamic responses of cylinder liners with respect to two main sources: combustion shock and piston side thrust. Based on the validated FE model, the response characteristics of the cylinder liner in an IC engine fuelled with biodiesel and its causal relationship with excitation sources have been predicted. Due to the lower calorific value of biodiesel, a greater amount of fuel is injected into the
combustion chamber to maintain power outputs, which results in a prolonged combustion duration and subsequent higher overall vibration levels, compared with that of diesel. The advanced ignition of biodiesel is the main cause to the compound effect on the coupling of piston side-thrust force,thereby resulting in a nonlinear increase in the RMS of local vibration response close to the combustion TDC. These key findings provides insight understandings for not only diagnostic
biodiesel combustions but also more accurate diagnostics of fossil diesel based on nonintrusive vibrations

Item Type: Article
Subjects: Q Science > Q Science (General)
T Technology > T Technology (General)
Schools: School of Computing and Engineering
Related URLs:
Depositing User: Sharon Beastall
Date Deposited: 17 Jul 2017 14:46
Last Modified: 18 Oct 2017 08:32


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