Researches upon the Maintenance of the Railway Wagons Brake System

Abstract:

It is known that the brake system maintenance of the railway wagons involve also, among others, the replacing of the brake shoes when their wear in time exceeds the maximum allowable limit. This requires creating a reserve of such spare parts in companies carrying out maintenance of such equipments. Management of the stocks needed to be created can be solved by applying various methods, depending on the certainty or uncertainty knowledge of the level necessary for the spare parts demand, of their delivery time and size of supply costs. The company in which researches was conducted did not apply optimization policies for corrective maintenance, in the idea of non-blocking in irrational stocks the company financial resources. So that, the authors propose as a working method, for solving a particular case, a deterministic storage model of the brake shoes with instantaneous supply of this spare parts, when absence in stock may be accepted. The researches result consisted of determining the brake shoes economic batch size and their optimal replenishment period, at minimum total costs. It was also determined, in this case, the minimum required level stock, as well as, its existence time and the absence in stock. Intensity index of the stock split determination will also allow, the brake shoes probability deplation.

• Periodical: Applied Mechanics and Materials (Volume 371)
• Pages: 637-641
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.371.637
• Online since: August 2013
• Authors: Bianca Silvia Orhei Bercea, Octavian Lupescu, Lucian Dumitrel Bercea
• Keywords: Deterministic Model, Instantaneous Supply, Maintenance, Spare Parts, Stocks

References

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