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The manufacturer industry is characterized by the presence of highly repetitive movements, which is a major risk factor associated with work musculoskeletal disorders (WMSDs). Moreover, this risk factor worsens when workers do not take adequate rest periods. This paper analyzes the problem and presents a mixed integer linear programming (MILP) mathematical model to minimize makespan in an n–job flowshop problem with sequence-dependent setup times by considering recovery times. To this end, the model combines the effectiveness of MILP mathematical model optimization with the OCRA ergonomic assessment method. The model calculates work-recovery periods in workers ́ schedules based on the OCRA included in standards UNE–EN 1005– 5:2007 and ISO 11228–3:2007. Finally, a case study in a Food Sector Company is described.

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UN MODELO PARA DEFINIR LA SECUENCIACIÓN DE TAREAS EN SISTEMAS FLOW-SHOP DEPENDIENTES DEL TIEMPO DE CONFIGURACIÓN CONSIDERANDO PRODUCTIVIDAD Y ERGONOMÍA