Thermomechanical Fatigue Life Prediction for a Marine Diesel Engine Piston considering Ring Dynamics

A newly designed marine diesel engine piston was modeled using a precise finite element analysis (FEA). The high cycle fatigue (HCF) safety factor prediction procedure designed in this study incorporated lubrication, thermal, and structure analysis. The piston ring dynamics calculation determined th...

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Bibliographic Details
Published inAdvances in Mechanical Engineering Vol. 2014; pp. 418 - 427
Main Authors He, Tao, Lu, Xiqun, Zou, Dequan, Guo, Yibin, Li, Wanyou, Huang, Minli
Format Journal Article
LanguageEnglish
Published London, England Hindawi Limiteds 01.01.2014
SAGE Publications
Sage Publications Ltd. (UK)
Sage Publications Ltd
SAGE Publishing
Subjects
Analysis
Boundary conditions
Colleges & universities
Design
Design and construction
Fatigue (Materials)
Finite element analysis
Finite element method
Heat transfer
Marine diesel engines
Pressure distribution
Properties
Stress analysis
Stress concentration
United States
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Summary:A newly designed marine diesel engine piston was modeled using a precise finite element analysis (FEA). The high cycle fatigue (HCF) safety factor prediction procedure designed in this study incorporated lubrication, thermal, and structure analysis. The piston ring dynamics calculation determined the predicted thickness of lubrication oil film. The film thickness influenced the calculated magnitude of the heat transfer coefficient (HTC) used in the thermal loads analysis. Moreover, the gas pressure of ring lands and ring grooves used in mechanical analysis is predicted based on the piston ring dynamics model.
ISSN:1687-8132
1687-8140
1687-8140
1687-8132
DOI:10.1155/2014/429637