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Titolo:
A simple and effective component procurement policy for stochastic assembly systems
Autore:
Gallien, J; Wein, LM;
Indirizzi:
MIT, Ctr Operat Res, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139MIT, Ctr Operat Res, Cambridge, MA 02139 USA MIT, Alfred P Sloan Sch Management, Cambridge, MA 02139 USA MIT CambridgeMA USA 02139 Sloan Sch Management, Cambridge, MA 02139 USA
Titolo Testata:
QUEUEING SYSTEMS
fascicolo: 2, volume: 38, anno: 2001,
pagine: 221 - 248
SICI:
0257-0130(2001)38:2<221:ASAECP>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Keywords:
assembly systems; inventory policies; maximum of random variables; Gumbel distribution; closure under maximization and translation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Gallien, J MIT, Ctr Operat Res, 77 Mass Ave,Bldg E40-149, Cambridge, MA 02139 USA MIT 77 Mass Ave,Bldg E40-149 Cambridge MA USA 02139 A 02139 USA
Citazione:
J. Gallien e L.M. Wein, "A simple and effective component procurement policy for stochastic assembly systems", QUEUEING S, 38(2), 2001, pp. 221-248

Abstract

We examine the component procurement problem in a single-item, make-to-stock assembly system. The suppliers are uncapacitated and have independent but non-identically distributed stochastic delivery lead times. Assembly is instantaneous, product demand follows a Poisson process and unsatisfied demand is backordered. The objective is to minimize the sum of steady-state holding and backorder costs over a pre-specified class of replenishment policies. To keep the analysis tractable. we impose a synchronization assumption that no mixing occurs between sets of component orders. Combining existing results from queueing theory with original results concerning distributionsthat are closed under maximization and translation, we derive a simple approximate solution to the problem when lead time variances are identical. Insimulations, our derived policy is within 2% of optimal and significantly outperforms policies that ignore either component dependence or lead time stochasticity. It is also quite robust with respect to various model assumptions, except the synchronization one.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 15:17:24