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http://dx.doi.org/10.3795/KSME-A.2013.37.3.365

Statistical Analysis for Fatigue Life Evaluation of Vehicle Muffler  

Choi, Ji-Hun (Dept. of Mechanical Engineering, Pusan Nat'l Univ.)
Lee, Yong-Jun (Dept. of Mechanical Engineering, Pusan Nat'l Univ.)
Yoon, Jin-Ho (Dept. of Mechanical Engineering, Pusan Nat'l Univ.)
Kang, Sung-Su (Dept. of Mechanical Engineering, Pusan Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.37, no.3, 2013 , pp. 365-372 More about this Journal
Abstract
In this study, a statistical method for evaluating the fatigue life of a vehicle muffler was used to obtain reliable fatigue data using a limited number of specimens. Cyclic bending tests were conducted using specimens manufactured to be exactly the same as the mufflers installed in cars that are currently in use. To estimate the fatigue life by comparing the data obtained during the fatigue tests, the most suitable probability density function for the normal, lognormal, and Weibull distributions was selected. A goodness-of-fit test was performed on the probability distributions, and then a Weibull distribution using the least square method was selected. By using the selected Weibull distribution, the probability-moment-life curves (P-M-N curve) reflecting the fatigue characteristics were suggested as the data for the reliable design of a muffler.
Keywords
Statistical Analysis; Fatigue Life; Muffler; Weibull Distribution; Probability-Moment-Life Curve;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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