Template-Type: ReDIF-Paper 1.0
Author-Name: Lamballais, T.
Author-Name-Last: Lamballais
Author-Name-First: Tim
Author-Name: Roy, D.
Author-Name-Last: Roy
Author-Name-First: Debjit
Author-Name: de Koster, M.B.M.
Author-Name-Last: de Koster
Author-Name-First: René
Title: Inventory Allocation in Robotic Mobile Fulfillment Systems
Abstract: A Robotic Mobile Fulfillment System is a recently developed automated, parts-to- picker material handling system. Robots can move storage shelves, also known as inventory pods, between the storage area and the workstations and can continually reposition them during operations. This paper shows how to optimize three key decision variables: (1) the number of pods per product (2) the ratio of the number of pick stations to replenishment stations, and (3) the replenishment level per pod. Our results show that throughput performance improves substantially when inventory is spread across multiple pods, when an optimum ratio between the number of pick stations to replenishment stations is achieved and when a pod is replenished before it is completely empty. This paper contributes methodologically by introducing a new type of Semi-Open Queueing Networks (SOQN): cross-class matching multi- class SOQN, by deriving necessary stability conditions, and by introducing a novel interpretation of the classes.
Length: 43
Creation-Date: 2017-01-09
File-URL: https://repub.eur.nl/pub/95392/ERS-2017-001-LIS.pdf
File-Format: application/pdf
Series: RePEc:ems:eureri
Number: ERS-2017-001-LIS
Keywords: Robotic Mobile Fulfillment System, RMFS, Semi-Open Queueing Networks, SOQN
Handle: RePEc:ems:eureri:95392