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http://dx.doi.org/10.5762/KAIS.2016.17.11.432

Reliability Analysis of cooler in Thermal Observation Device  

Hong, Seok-Jin (DTAQ (Defense agency for Technology and Quality))
Jung, Yun-Sik (DTAQ (Defense agency for Technology and Quality))
Kim, Jin-Hwan (DTAQ (Defense agency for Technology and Quality))
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.11, 2016 , pp. 432-436 More about this Journal
Abstract
The cooler, which is the main part in a Thermal Observation Device (TOD), makes the TOD function by reducing the temperature. As the cooler is imported, overseas enterprises presented 20,000 hours as the operation time and the military have used the cooler as presented. However, failures have occurred occasionally after mass production stage. Therefore, we need to analyze the MTBF of the TOD cooler. So, military and defense industry companies collected the failure data of the TOD cooler. We analyze the MTBF of the TOD cooler using survival probability function and failure data. We find the optimal distribution by applying parametric method and estimate parameters. We determine that the Log-logistic distribution is the most appropriate for this data. Also, we analyze the reliability per hour of the TOD cooler. The result of MTBF of the TOD cooler was higher than that of presented by oversee enterprises.
Keywords
Cooler; Reliability; TOD(Thermal Observation Device); Survival Analysis; Hazard Funtion; MTBF;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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