Effective process times for multi-server tandem queues with finite buffers

A.A.A. Kock, L.F.P. Etman, J.E. Rooda

    Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

    19 Citaten (Scopus)

    Samenvatting

    An Effective Process Time (EPT) approach is proposed for the building of aggregate models to represent multi-server tandem queues with finite buffers. EPT distributions of the workstations in the flow line are measured without identifying the contributing factors. A sample path equation is used to compute the EPT realizations from arrival and departure events of lots at the respective workstations. If the amount of blocking in the line is high, the goodness of fits of the EPT distribution determines the accuracy of the EPT-based aggregate model. Otherwise, an aggregate model based on just the first two moments of the EPT distributions is sufficient to obtain accurate predictions. The approach is illustrated in an industrial case study using both simulation and analytical queueing approximations as aggregate models.
    Originele taal-2Engels
    Pagina's (van-tot)177-186
    TijdschriftIIE Transactions
    Volume40
    Nummer van het tijdschrift3
    DOI's
    StatusGepubliceerd - 2008

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