A comparison of optimization models for lumber production planning

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 decisio...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Vergara,Francisco P, Palma,Cristian D, Sepúlveda,Héctor
Lenguaje:	English
Publicado:	Universidad Austral de Chile, Facultad de Ciencias Forestales 2015
Materias:	linear programming cutting patterns sawmill production
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002015000200009
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-92002015000200009
record_format	dspace
spelling	oai:scielo:S0717-920020150002000092015-09-14A comparison of optimization models for lumber production planningVergara,Francisco PPalma,Cristian DSepúlveda,Héctor linear programming cutting patterns sawmill production 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 time minimization. Only profit maximization and waste minimization models reported positive economic returns. Although the current decision at sawmills also reported a positive economic return, the same economic result was obtained with significantly fewer resources using the waste minimization model. The effects of the different objectives on the production indicators were discussed.info:eu-repo/semantics/openAccessUniversidad Austral de Chile, Facultad de Ciencias ForestalesBosque (Valdivia) v.36 n.2 20152015-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002015000200009en10.4067/S0717-92002015000200009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	linear programming cutting patterns sawmill production
spellingShingle	linear programming cutting patterns sawmill production Vergara,Francisco P Palma,Cristian D Sepúlveda,Héctor A comparison of optimization models for lumber production planning
description	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 time minimization. Only profit maximization and waste minimization models reported positive economic returns. Although the current decision at sawmills also reported a positive economic return, the same economic result was obtained with significantly fewer resources using the waste minimization model. The effects of the different objectives on the production indicators were discussed.
author	Vergara,Francisco P Palma,Cristian D Sepúlveda,Héctor
author_facet	Vergara,Francisco P Palma,Cristian D Sepúlveda,Héctor
author_sort	Vergara,Francisco P
title	A comparison of optimization models for lumber production planning
title_short	A comparison of optimization models for lumber production planning
title_full	A comparison of optimization models for lumber production planning
title_fullStr	A comparison of optimization models for lumber production planning
title_full_unstemmed	A comparison of optimization models for lumber production planning
title_sort	comparison of optimization models for lumber production planning
publisher	Universidad Austral de Chile, Facultad de Ciencias Forestales
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002015000200009
work_keys_str_mv	AT vergarafranciscop acomparisonofoptimizationmodelsforlumberproductionplanning AT palmacristiand acomparisonofoptimizationmodelsforlumberproductionplanning AT sepulvedahector acomparisonofoptimizationmodelsforlumberproductionplanning AT vergarafranciscop comparisonofoptimizationmodelsforlumberproductionplanning AT palmacristiand comparisonofoptimizationmodelsforlumberproductionplanning AT sepulvedahector comparisonofoptimizationmodelsforlumberproductionplanning
_version_	1718444209875189760

A comparison of optimization models for lumber production planning

Ejemplares similares