Effect of nitriding treatment on fatigue life for free piston linear engine component using frequency response method: A finite element approach

被引：0
|
作者：
Rahman, Mustafizur M. [1 ]
Ariffin, A.K. [2 ]
Abdullah, S. [2 ]
Rosli, A.B. [1 ]
机构：
[1] Faculty of Mechanical Engineering, Universiti Malaysia Pahang, P.O. Box 12, 25000 Kuantan, Pahang, Malaysia
[2] Department of Mechanical and Materials Engineering, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor DE, Malaysia
来源：
SDHM Structural Durability and Health Monitoring | 2007年 / 3卷 / 04期
关键词：
Computer aided design - Fatigue of materials - Finite element method - Frequency response - Mathematical models - Nitriding - Vibrations (mechanical);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Low weight and long lifetime are necessary requirements for automobiles to significantly reduce CO2 emission and environmental burdens in their use. Aluminum alloys are one of the most promising materials selections for automobiles parts and electrical components to reduce their weight and to increase their specific strength. This paper presents the role of nitriding on the fatigue life of the vibrating cylinder block for a new two-stroke free piston engine using variable amplitude loading conditions. The finite element modeling and analysis have been performed utilising a computer aided design and a finite element analysis codes respectively. In addition, the fatigue life prediction was carried out using finite element based fatigue analysis code. The material AA6061-T6 is considered in this study. The narrow band frequency response approach was applied to predict the fatigue life of cylinder block using different load histories. Based on the finite element results, it is observed that there is a significant variation between the nitriding treatment and untreated cylinder block of free piston engine. The obtained results indicate that the nitrided treatment produces longest life for all loading conditions. Therefore, the nitriding process is one of the promising surface treatments for aluminum alloy parts to increase the fatigue life of the linear engine cylinder block. Copyright © 2007 Tech Science Press.
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页码：197 / 209
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