A Hybrid Simulation-based Optimization Approach for Scheduling Dinamic Block Assembly in Shipbuilding

CARLOS A. MÉNDEZ; A. GARCÍA DEL VALLE; NATALIA P. BASÁN; VICTORIA G. ACHKAR; CARLOS A. MÉNDEZ; A. GARCÍA DEL VALLE; NATALIA P. BASÁN; VICTORIA G. ACHKAR

Barcelona

Simposio; 29th European Modeling & Simulation Symposium (EMSS2017); 2017

EMSS Organization Committee

Shipbuilding is a complex and long-term process which requires the coordination of a large amount of resources and several types of manufacturing process planning. To achieve scheduling optimization of block production line and therefore, greater competitiveness in shipbuilding market, an efficient medium-term and short-term operations strategies are used. This work focuses on a real-world case study involving a large amount of blocks. Hence, a novel simulation-based optimization approach is developed for the efficient scheduling of production and assembly operations in a system of multi-stage multi-product production of a shipyard. The goal is to generate good schedules with modest computational effort minimizing the makespan (the total processing, waiting, and assembly time) while satisfying a large set of hard constraints. Mathematical model results are generated by using data from a real shipyard and improved through the simulation. Several examples are solved and reported to illustrate the capabilities of the approach proposed.