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http://dx.doi.org/10.3795/KSME-A.2017.41.11.1055

Parameter Estimation and Reliability Analysis Using Bayesian Approach for Bolted Joint and O-ring Seal of Solid Rocket Motor  

Gang, Jin Hyuk (V-ENG Co. Ltd.)
Choi, Joo Ho (School of Aerospace and Mechanical Engineering, Korea Aerospace Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.41, no.11, 2017 , pp. 1055-1064 More about this Journal
Abstract
Since a device such as a rocket motor requires very high reliability, a reasonable reliability design process is essential. However, Korea has implemented a design method for applying a safety factor to each component. In classic reliability analysis, input variables such as mean and standard deviation, used in the limit state function, are treated as deterministic values. Because the mean and standard deviation are determined by a small amount of data, this approach could lead to inaccurate results. In this study, reliability analysis is performed for bolted joints and o-ring seals, and the Bayesian approach is used to statistically estimate the input variables. The estimated variables and failure probability, calculated by the reliability analysis, are derived in the form of probability distributions.
Keywords
Bayesian Parameter Estimation; Reliability Analysis; Rocket Motor; Bolted Joint; O-ring Seal;
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Times Cited By KSCI : 2  (Citation Analysis)
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