Assessment of Surface Treatment on Fatigue Life of Cylinder Block for Linear Engine using Frequency Response Approach

Objectives: This study was focused on the finite element techniques to investigate the effect of surface treatment on the fatigue life of the vibrating cylinder block for new two-stroke free piston engine using random loading conditions. Motivation: An understanding of the effects related to the random loading is necessary to improve the ability of designers to accurately predict the fatigue behavior of the components in service. An internal combustion engine cylinder block is a high volume production component subjected to random loading. Problem statement: Proper optimization of this component that is critical to the engine fuel efficiency and more robustly pursued by the automotive industry in recent years. A detailed understanding of the applied loads and resulting stresses under in-service conditions is demanded. Approach: The finite element modeling and analysis were performed utilizing the computer aided design and finite element analysis codes respectively. In addition, the fatigue life prediction was carried out using finite element based fatigue analysis code. Aluminum alloys were considered as typical materials in this study. Results: The frequency response approach was applied to predict the fatigue life of cylinder block using different load histories. Based on the finite element results, it was observed that the fatigue life was significantly influenced for the nitriding treatment. The obtained results were indicated that the nitrided treatment produces longest life for all loading conditions. Conclusion: The nitriding process is one of the promising surface treatments to increase the fatigue life for aluminum alloys linear engine cylinder block.

[1]  Mahmudur Rahman,et al.  Effects of surface finish and treatment on the fatigue behaviour of vibrating cylinder block using frequency response approach , 2006 .

[2]  R. J. Anthes,et al.  Modified rainflow counting keeping the load sequence , 1997 .

[3]  Che Hassan Che Haron,et al.  Influence of surface treatements on fatigue life of a free piston linear generator engine components using narrow band approach , 2006 .

[4]  P. C. Brooks,et al.  Review of life assessment techniques applied to dynamically loaded automotive components , 2002 .

[5]  Salha Abdullah,et al.  Effect of Nitriding Treatment on Fatigue life for Free Piston Linear Engine Component using Frequency Response Method: a Finite Element Approach , 2007 .

[6]  Paul H. Wirsching,et al.  Fatigue under Wide Band Random Stresses , 1980 .

[7]  M.A. Maleque,et al.  Modeling, Analysis and Fatigue Life Prediction of Lower Suspension Arm , 2009 .

[8]  P. T. Smulders,et al.  Wind energy : technology and implementation : proceedings of the European wind energy conference, EWEC'91, Amsterdam, The Netherlands, October 14-18, 1991 , 1992 .

[9]  A. K. Khosrovaneh,et al.  Fatigue loading history reconstruction based on the rainflow technique , 1990 .

[10]  M. SaniM.S.,et al.  Fatigue Life Prediction of Spot-Welded Structures: A Finite Element Analysis Approach , 2008 .

[11]  Kazuhiro Nakata,et al.  Fe–Al composite layers on aluminum alloy formed by laser surface alloying with iron powder , 2003 .

[12]  M. RahmanM.,et al.  Fatigue Life Prediction of Lower Suspension Arm UsingStrain-Life Approach , 2009 .

[13]  Rosli Abu Bakar,et al.  Investigation Into Surface Treatment On Fatigue Life For Cylinder Block Of Linear Engine Using Frequency Response Approach. , 2008 .

[14]  S O Rice,et al.  Mathematical Analysis of Random Noise - and Appendixes , 1952 .

[15]  M. RahmanM.,et al.  Optimization of Surface Roughness in End Milling on Mould Aluminium Alloys (AA6061-T6) Using Response Surface Method and Radian Basis Function Network , 2008 .

[16]  Svend Gade,et al.  How to Determine the Modal Parameters of Simple Structures , 1999 .

[17]  Khaled Abou-El-Hossein,et al.  Tool life and wear mechanism when machining Hastelloy C-22HS , 2011 .

[18]  T. Ueno,et al.  Plasma Sprayed Coatings with Water and Gas Atomised Bearing Steel Powders , 2003 .

[19]  Masahiro Okumiya,et al.  Surface modification of aluminum using ion nitriding and barrel nitriding , 2005 .

[20]  J. M. Tunna.  FATIGUE LIFE PREDICTION FOR GAUSSIAN RANDOM LOADS AT THE DESIGN STAGE , 1986 .

[21]  M. RahmanM.,et al.  PREDICTION OF FATIGUE LIFE ON LOWER SUSPENSION ARM SUBJECTED TO VARIABLE AMPLITUDE LOADING , 2010 .

[22]  Che Hassan Che Haron,et al.  Influence of surface treatments on fatigue life of a two-stroke free piston linear engine component using random loading , 2006 .

[23]  W. D. Dover,et al.  Fatigue analysis of offshore platforms subject to sea wave loadings , 1985 .

[24]  J C P Kam,et al.  FAST FATIGUE ASSESSMENT PROCEDURE FOR OFFSHORE STRUCTURES UNDER RANDOM STRESS HISTORY. , 1988 .