Inventory routing in a warehouse: The storage replenishment routing problem

2021-01-01
Çelik, Melih
Archetti, Claudia
Süral, Haldun
In warehouses, storage replenishment operations involve the transportation of items to capacitated item slots in the forward storage area from reserve storage. These items are later picked from these slots as demand arises. While order picking constitutes the majority of warehouse operating costs, efficient management of replenishment operations is important to ensure the availability of the items for picking and to decrease the operating costs due to replenishment, which might be particularly higher in warehouses with fast-moving items (e.g., e-commerce warehouses or retail distribution centers). In this paper, we define the storage replenishment routing problem in a parallel-aisle warehouse, where replenishment and order picking operations are carried out in successive cycles with time limits. The aim is to determine the item slots that will be replenished and the route of the replenishment worker in each replenishment cycle, so as to minimize the total travel time and ensure the availability of items at the start of the cycle they will be picked. We present complexity results on different variants of the problem and show that the problem is NP-hard in general. Consequently, we adapt a heuristic approach based on a priori routing and inspired by the literature on the inventory routing problem. We use randomly generated warehouse instances to analyze the effects of different a priori routing methods and demand skewness patterns on replenishment performance, and to compare the proposed approach to benchmarks that mimic practice.
European Journal of Operational Research

Suggestions

The storage replenishment problem in rectangular warehouse
Süral, Haldun; Çelik, Melih (2016-06-12)
In warehouses, storage replenishment operations involve the transportation of items to capacitated item slots in forward storage area from reserve storage. These items are later picked from these slots as their demand arises. While order picking constitutes the majority of warehouse operating costs, replenishment operations might be as costly in warehouses where pick lists generally consist of only a few lines (e.g., order fulfillment warehouses). In this study, we consider the storage replenishment problem...
Inventory management through vendor managed inventory in a supply chain with stochastic demand
Güneş, Hürdoğan; Savaşaneril Tüfekci, Seçil; Bayındır, Zeynep Pelin; Department of Industrial Engineering (2010)
Vendor Managed Inventory (VMI) is a business practice in which vendors monitor their customers’ inventories, and decide when and how much inventory should be replenished. VMI has attracted a lot of attention due to its benefits. In this study, we analyze the benefits of VMI in a supply chain consisting of a single retailer and a single capacitated supplier under stochastic demand. We propose a VMI setting and compare the vendor managed system with the traditional system to quantify the benefits of VMI. In o...
Drop test simulation of a munition with foams and parametric study on foam geometry and material
Gerçeker, Bora; Ulaş, Abdullah; Parnas, Kemal Levend; Department of Mechanical Engineering (2012)
Unintentional drop of munitions could be encountered during the storage, transportation, and loading processes. In such an impact, malfunctioning of crucial components of munitions is the worst scenario that may be encountered and level of loads should not reach to critical levels. From two possible methods, experimental one is not frequently applied owing to high cost of money and time. On the contrary, particularly in last couple of years, interest is shifted to numerical simulations such as finite elemen...
Coordinate systems for a naval virtual environment
Kılıç, Aslı; Oğuztüzün, Mehmet Halit S.; Department of Computer Engineering (2005)
The purpose of this thesis is implementing World Geodetic System (WGS) for Naval Surface Tactical Maneuvering Simulation System (NSTMSS), a High Level Architecture (HLA) based naval simulation, and also implementing body coordinate system for the ships of NSTMSS and its combination with WGS so that NSTMSS can be more accurate, and new ship dynamics models can be integrated to the NSTMSS environment more easily. To improve the coordinate system of NSTMSS these methods were used; World Geodetic System - 1984 ...
Path planning for mobile DCs in future cities
Al-Turjman, Fadi; Karakoc, Mehmet; GÜNAY, MELİH (2017-04-01)
In future smart-cities, public transportation vehicles are planned to serve as data couriers (DCs) in order to exchange massive amounts of data chunks. In this research, we study the path planning problem for these DCs while optimizing their counts and their total traveled distances. As the total collected load on a given DC route cannot exceed its storage capacity, it is important to decide on the size of the exchanged data-packets (images, videos, etc.) and the sequence of the targeted data sources to be ...
Citation Formats
M. Çelik, C. Archetti, and H. Süral, “Inventory routing in a warehouse: The storage replenishment routing problem,” European Journal of Operational Research, pp. 0–0, 2021, Accessed: 00, 2022. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85121978761&origin=inward.