Study of Efficient Warehousing Operations for Steel Storage

A steel stock yard (warehouse) for storing the purchased steel plates is the first step of shipbuilding. It is also space where sorting is performed to supply proper steel plates to the cutting process at the right time. However, due to the nature of the shipbuilding yard where multiple vessels are constructed simultaneously, there are many steel plates of various types. Hence, it is difficult to supply all steel plates from one steelwork. Therefore, the deviation of the duration of plate procurement increases in the process of supplying steel plates from multiple steelworks. Meanwhile, the changes in production plans resulting from this affect the duration for which the steel plates stay in the stock yard. To address this problem, shipbuilding yards are researching efficient warehouse operations management solutions in a limited space.

In this study, a steel warehouse simulation model was constructed using discrete event simulation (DES).

The main objective of this study is to build a simulation model that can help field workers select steel plates to be moved according to a predefined logic, choose a stock yard to which the steel plates must be moved, and to check the results in advance through simulation before working at the field for steel stocking, rearrangement, and sorting work.

In addition, this study determines the basis for selecting the most appropriate case for the input data by analyzing costs required for performing the tasks through the Time-Driven Activity-Based Costing (TDABC) analysis. It also examines how a steel stock yard can be operated to financially benefit the shipbuilding yard company.

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