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- W1977536124 abstract "The brake system maintenance of railway wagons consists, amongst other matters, brake shoe replacement whose wear in time exceeds the maximum allowable limit. Their absence in stock leads to the maintenance process stagnation. This causes additional costs of procurement and very high costs because of shortage. Thus, the main objective in control of the brake shoe stocks, in a company carrying out maintenance activities of railway wagons is that of determining the quantity ordered and the interval between orders. Their optimal values will be reached when storage costs, expressed by the cost function (the total mean value of the costs) are minimal, leading to a normal unfolding of the corrective maintenance activities. For the management of the spare parts stocks to be applied various methods, depending on the certainty or uncertainty knowledge of the level demand; of their delivery time and of their supply costs. For avoiding increasing penalty costs due to lack in stock the authors propose, after the estimation of the relative variability of demand for these spare parts, the stochastic modelling utilisation, the demand and delivery time being discrete random variables (depending on season, type and random rhythmicity of the falls), known being the request repartitions of the brake shoes on the basis of statistical records. The research results led to the determination of the value necessary to brake shoes stock so that, the total losses of the company in which carried out the maintenance activities to be minimised, and to establish the range of cost in which is allowed the acquisition of a such spare part when she is missing from the stock." @default.
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- W1977536124 date "2014-10-01" @default.
- W1977536124 modified "2023-09-27" @default.
- W1977536124 title "Researches into the Stochastic Modelling of the Brake Shoes Stock Used in Railway Wagon Maintenance" @default.
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- W1977536124 doi "https://doi.org/10.4028/www.scientific.net/amr.1036.1077" @default.
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