RESUMO Formiga, v. 5, n. 3, e00288, 2017.

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RESUMO ABSTRACTReliability analysis is a methodology used to describe the behavior of equipment failures. The present work aims to model the life time in hours of fiber optic transmitters. The research procedure used was the case study. Tests were done on fourteen devices that failed. The graphical method and the chi-square ( ) and KolmogorovSmirnov (K-S) tests were used to verify the distribution that best models the data sample. ProConf software was used to perform the analysis. The distribution parameters were determined. The reliability functions R(t) and risk functions h(t) were presented. The Weibull distribution was chosen to model the time to failure of the data. The average time to failure of the transmitters is 318 hours. Half of the equipment failed before 236 hours. The Weibull form and scale factors are, respectively, 1.47 and 357.50. The life stage of the fiber optic transmitters studied corresponds to the onset of senil e mortality, since the γ wasgreaterthan1. Thus, there is an increasing risk and decreasing reliability, indicating a wear and tear of the equipment.

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