Equipment selection with heterogeneous fleets for multiple-period schedulesstar / Burt, C. in Journal of the operational research society (JORS), Vol. 62 N° 8 (Août 2011)  

Public ISBD [article]  inJournal of the operational research society (JORS) > Vol. 62 N° 8 (Août 2011) . - pp. 1498–1509 Titre : Equipment selection with heterogeneous fleets for multiple-period schedulesstar Type de document : texte imprimé Auteurs : Burt, C., Auteur ; Caccetta, L., Auteur ; Welgama, P., Auteur Année de publication : 2011 Article en page(s) : pp. 1498–1509 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : OR in natural resources Integer programming Surface mining Equipment selection Index. décimale : 001.424 Résumé : In a simple surface mining scenario we consider a mine to have one mining location and dumpsite connected by a truck route. We determine a purchase and salvage policy for trucks and loaders, which minimises the cost of materials handling over a multiple period schedule. This problem becomes large scale when we consider large sets of equipment and long schedules. Pre-existing equipment can lead to heterogeneous fleets; non-uniformity in the operating cost function coupled with compatibility issues also adds to the complexity of the problem. We present an integer programme for this problem, where we introduce a specialised linear constraint set to ensure satisfaction of production requirements while accounting for equipment compatibility. Many aspects of the presented model, such as the consideration of multiple periods and pre-existing equipment, are novel for the mining industry and ensure that the model is both a new and advanced equipment selection tool. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v62/n8/abs/jors2010107a.html [article] Equipment selection with heterogeneous fleets for multiple-period schedulesstar [texte imprimé] / Burt, C., Auteur ; Caccetta, L., Auteur ; Welgama, P., Auteur . - 2011 . - pp. 1498–1509. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 62 N° 8 (Août 2011) . - pp. 1498–1509 Mots-clés : OR in natural resources Integer programming Surface mining Equipment selection Index. décimale : 001.424 Résumé : In a simple surface mining scenario we consider a mine to have one mining location and dumpsite connected by a truck route. We determine a purchase and salvage policy for trucks and loaders, which minimises the cost of materials handling over a multiple period schedule. This problem becomes large scale when we consider large sets of equipment and long schedules. Pre-existing equipment can lead to heterogeneous fleets; non-uniformity in the operating cost function coupled with compatibility issues also adds to the complexity of the problem. We present an integer programme for this problem, where we introduce a specialised linear constraint set to ensure satisfaction of production requirements while accounting for equipment compatibility. Many aspects of the presented model, such as the consideration of multiple periods and pre-existing equipment, are novel for the mining industry and ensure that the model is both a new and advanced equipment selection tool. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v62/n8/abs/jors2010107a.html

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