A comparison of optimization models for lumber production planning


A comparison of optimization models for lumber production planning
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Cristian D Palma ; Héctor Sepúlveda ;Bosque 2015, 36 2
Autor: Francisco P Vergara
Fuente: http://www.redalyc.org/
Introducción
Bosque
ISSN: 0304-8799
revistabosque@uach.cl
Universidad Austral de Chile
Chile
Vergara, Francisco P; Palma, Cristian D; Sepúlveda, Héctor
A comparison of optimization models for lumber production planning
Bosque, vol.
36, núm.
2, 2015, pp.
239-246
Universidad Austral de Chile
Valdivia, Chile
Available in: http:--www.redalyc.org-articulo.oa?id=173141111009
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BOSQUE 36(2): 239-246, 2015
DOI: 10.4067-S0717-92002015000200009
A comparison of optimization models for lumber production planning
Comparación de modelos de optimización para la planificación de la producción de madera aserrada
Francisco P Vergara a*, Cristian D Palma b , Héctor Sepúlveda a
Autor de correspondencia: a Universidad del Bío Bío, Facultad de Ingeniería, Departamento de Ingeniería en Maderas,
Avenida Collao 1202, Concepción, Chile, tel.: 56-41-3111668, fvergara@ubiobio.cl
b
Universidad del Desarrollo, Facultad de Ingeniería, Concepción, Chile.
*
SUMMARY
The performance of sawmills is strongly dependent on how logs are sawn into lumber in order to satisfy the customer demands.
To
do this, sawmill managers have to decide which cutting patterns have to be applied to logs of different dimensions.
Optimization
models have been proposed to assist decision makers in this process, but only the profit maximization and the cost minimization of the
decisions have been considered as the models objective.
In this paper, a linear optimization model was formulated to address lumber
production planning and applied to a real problem.
The current decisions at sawmills were compared with five different objective
functions: the two previously mentioned plus waste minimization, log number minimization and production t...