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http://dx.doi.org/10.7467/KSAE.2013.21.2.154

Study on Optimum Shape of Expansion Joint  

Han, Moonsik (Department of Mechanical & Automotive Engineering, Keimyung University)
Ahn, Junghyun (Department of Mechanical & Automotive Engineering, Andong National University)
Yang, Chulho (Department of Mechanical & Automotive Engineering, Andong National University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.21, no.2, 2013 , pp. 154-158 More about this Journal
Abstract
Expansion joint has been utilized in many areas including automotive bellows for exhaust system. Usage of expansion joint has been increased due to its inherent flexibility and excellent anti-vibration property. Simple shape of expansion joint is modeled to understand the behavior of joint system. 27 design cases using 3 design factors with 3 levels are constructed by design of experiment. Each case is simulated to find the most influential design factors. Response for this study, maximum stress in the expansion joint, has been used to determine main design factors of joint. Among the 3 design factors, factor B has affected greatly a response in the formation of optimum shape of joint. Also, interaction factor, $A{\times}B$, has also showed its influence to the response of joint. This study showed that design of experiment combined with finite element analysis could be used in the design decision process effectively in the design of expansion joint.
Keywords
Design of experiment; Expansion joint; Analysis of variance; Main effect factor; Interaction effect factor;
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