Superstruture erection - Naval Architecture

Описание: In the context of shipbuilding, the block erection process is one of the most critical point of planning. It is known that the production cycle in the preassembly area determines the production capacity. There-fore, optimization of the shipbuilding activities is crucial to improve productivity and competitiveness. However, the tools commonly used in the design phase do not cover all stages of shipbuilding, allowing only an incomplete planning. Thus, the purpose of this work is to simulate the pre erection and erection processes of large ships to compare the effectiveness of different building strategies. In order to achieve this objective, a discrete-event simulation model have been developed which has the advantage to in-clude all parameters of building processes providing results closer to reality. The analysis found that the production time using different sequences of building: ring, pyramid or layer can be significantly affected. The methodology provided is effective to identify the performance of different erection sequences. Therefore, this tool might be applied to identify the best assembly alternatives that improve shipyard productivity.
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