Abstract
It was observed that in a particular open-pit mine, failure of the front and rear suspensions of a particular model of dump truck frequently occurs before the scheduled replacement of the parts. The Weibull distribution is used to model the time to failure of these components. Maximum likelihood estimators of the parameters are obtained and used to find a more appropriate replacement time. References E.A. Elsayed. Reliability Engineering. Hoboken: Wiley, 2012. http://au.wiley.com/WileyCDA/WileyTitle/productCd-1118137191.html Y. Faitakis, C. Mackenzie and G. J. Powley. Reducing maintenance costs through predictive fault detection. CIM Bull., 97(1076), 2004. http://www.cim.org/en/Publications-and-Technical-Resources/Publications/Technical_Papers/2004/1/BULL-2004-01-03 D. N. P. Murthy, M. Bulmer and J. A. Eccleston. Weibull model selection for reliability modelling. Reliab. Eng. Syst. Safe., 86(3):257–267, 2004. doi:10.1016/j.ress.2004.01.014 H. Shore. Optimum schedule for preventive maintenance: a general solution for a partially specified time-to-failure distribution. Prod. Oper. Manag., 5(2):148–162, 1996. doi:10.1111/j.1937-5956.1996.tb00391.x
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