Investigation into the dynamic response of cylinder liners in an IC engine based on a validated finite-element model

Guoxing Li, Fengshou Gu, Tie Wang, Tiantian Yang, Andrew Ball

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

To understand the effects of vibration of cylinder liners on engine combustion performance, tribological behaviour and vibro-acoustic radiations, this study investigates the dynamic responses of cylinder liners by finite-element modelling and experimental validation. The finite-element model is established in this study to predict the dynamic responses of cylinder liners to two significant sources: combustion shock and piston side thrust. It takes into account both the characteristics of structural modes and nonlinearities of assembly constraints when selecting adequate elements for efficient computation of the responses under both the highly nonlinear combustion pressure excitations and subsequent piston slap impacts. The predictions are then evaluated against experimental results under different engine operating conditions. To suppressing noise in measured signals, continuous wavelet analysis is employed to process the complicated responses for characterizing key response events and their frequency ranges. The results show agreeable correspondences between the numerical predictions and measured vibration signals, paving the way for investigating its effect on the combustion and lubrication processes.
LanguageEnglish
Pages56-69
Number of pages14
JournalSystems Science & Control Engineering
Volume5
Issue number1
Early online date19 Jan 2017
DOIs
Publication statusPublished - 2017

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Engine cylinders
Dynamic Response
Combustion
Finite Element Model
Dynamic response
Engine
Engines
Pistons
Acoustic Radiation
Vibration Signal
Lubrication
Prediction
Wavelet analysis
Finite Element Modeling
Wavelet Analysis
Experimental Validation
Shock
Correspondence
Vibration
Excitation

Cite this

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title = "Investigation into the dynamic response of cylinder liners in an IC engine based on a validated finite-element model",
abstract = "To understand the effects of vibration of cylinder liners on engine combustion performance, tribological behaviour and vibro-acoustic radiations, this study investigates the dynamic responses of cylinder liners by finite-element modelling and experimental validation. The finite-element model is established in this study to predict the dynamic responses of cylinder liners to two significant sources: combustion shock and piston side thrust. It takes into account both the characteristics of structural modes and nonlinearities of assembly constraints when selecting adequate elements for efficient computation of the responses under both the highly nonlinear combustion pressure excitations and subsequent piston slap impacts. The predictions are then evaluated against experimental results under different engine operating conditions. To suppressing noise in measured signals, continuous wavelet analysis is employed to process the complicated responses for characterizing key response events and their frequency ranges. The results show agreeable correspondences between the numerical predictions and measured vibration signals, paving the way for investigating its effect on the combustion and lubrication processes.",
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Investigation into the dynamic response of cylinder liners in an IC engine based on a validated finite-element model. / Li, Guoxing; Gu, Fengshou; Wang, Tie; Yang, Tiantian; Ball, Andrew.

In: Systems Science & Control Engineering, Vol. 5, No. 1, 2017, p. 56-69.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Investigation into the dynamic response of cylinder liners in an IC engine based on a validated finite-element model

AU - Li, Guoxing

AU - Gu, Fengshou

AU - Wang, Tie

AU - Yang, Tiantian

AU - Ball, Andrew

PY - 2017

Y1 - 2017

N2 - To understand the effects of vibration of cylinder liners on engine combustion performance, tribological behaviour and vibro-acoustic radiations, this study investigates the dynamic responses of cylinder liners by finite-element modelling and experimental validation. The finite-element model is established in this study to predict the dynamic responses of cylinder liners to two significant sources: combustion shock and piston side thrust. It takes into account both the characteristics of structural modes and nonlinearities of assembly constraints when selecting adequate elements for efficient computation of the responses under both the highly nonlinear combustion pressure excitations and subsequent piston slap impacts. The predictions are then evaluated against experimental results under different engine operating conditions. To suppressing noise in measured signals, continuous wavelet analysis is employed to process the complicated responses for characterizing key response events and their frequency ranges. The results show agreeable correspondences between the numerical predictions and measured vibration signals, paving the way for investigating its effect on the combustion and lubrication processes.

AB - To understand the effects of vibration of cylinder liners on engine combustion performance, tribological behaviour and vibro-acoustic radiations, this study investigates the dynamic responses of cylinder liners by finite-element modelling and experimental validation. The finite-element model is established in this study to predict the dynamic responses of cylinder liners to two significant sources: combustion shock and piston side thrust. It takes into account both the characteristics of structural modes and nonlinearities of assembly constraints when selecting adequate elements for efficient computation of the responses under both the highly nonlinear combustion pressure excitations and subsequent piston slap impacts. The predictions are then evaluated against experimental results under different engine operating conditions. To suppressing noise in measured signals, continuous wavelet analysis is employed to process the complicated responses for characterizing key response events and their frequency ranges. The results show agreeable correspondences between the numerical predictions and measured vibration signals, paving the way for investigating its effect on the combustion and lubrication processes.

KW - Finite element

KW - dynamic response

KW - piston slap

KW - combustion pressure

KW - cylinder liner

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