Abstract
According to the relationship between reliability and Life Cycle Costing (LCC), we studied the best optimized solution of system reliability and LCC when researching and manufacturing EMU subsystem, choosing the overall system scheme and the purchase scheme. Classified by the different stages of life cycle, the composition of LCC on EMU was introduced, and the decomposition process of LCC structure, the method for estimating purchasing cost and acquisition and maintenance cost were put forward. By the analysis of the effect of reliability indexes on LCC of EMU, the mathematical model of reliability and LCC was established. Based on the model of the relationship between reliability and LCC, we providing a new way of researching and manufacturing EMU and making the purchase scheme by an optimization method to achieve a goal of increasing reliability while reducing LCC.
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