A throughput model for a dual-tray Vertical Lift Module with a human order-picker

Đukić, Goran; Opetuk, Tihomir; Lerher, Tone

doi:10.1016/j.ijpe.2015.04.009

Cited by 35 publications

(35 citation statements)

References 10 publications

(15 reference statements)

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“…On the other hand, the horizontal movement of totes to their destination in the storage rack is facilitated by tire-captive shuttle carriers [10]. Some researchers, such as Carlo and Vis [12], Dukic et al [13], Lerher et al [14], Lerher et al [15], Lerher [16], Lerher [10], Marchet et al [17], and Marchet et al [18], have studied the analytical di culties and di erences of SBS/RS.…”

Section: Literature Reviewmentioning

confidence: 99%

Energy-conscious dynamic sequencing method for dual command cycle unit-load multiple-rack automated storage and retrieval systems

2017

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Abstract. A Dual Command (DC) cycle \dynamic sequencing" method in unit-load multiple-rack AS/RS system under Time-Of-Use (TOU) electricity tari s is applied in this paper. To make a type of energy-e cient model, overconsumption cost of on-peak period electricity, penalty cost of overconsumption of power, bounds on the total consumed energy, and accessible times of all facilities are considered in the model. Moreover, a Genetic Algorithm (GA) is developed to achieve a near-optimum solution to the suggested energy-based mathematical model with the objective of minimizing the total cost of the AS/RS system under TOU tari s. Considering that no benchmark is obtainable in the literature, a Simulated Annealing (SA) algorithm is developed to certify the outcome gained. For supplementary con rmation, we compare the total cost of our model with that of single-tari model and also conduct sensitivity analysis of the allowable amount of power consumption. The system throughput, in terms of time and cost, is calculated for the model too. In the last part, sixteen numerical examples with di erent numbers of required storage/retrieval orders are suggested to display the function of the proposed procedure. Our outcomes veri ed that GA is able to obtain favorable and closer optimal solutions and the TOU tari s model get the minimum total cost.

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Section: Literature Reviewmentioning

confidence: 99%

Energy-conscious dynamic sequencing method for dual command cycle unit-load multiple-rack automated storage and retrieval systems

2017

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“…The VLM assumed in this paper was with single picking place (so called single-tray or single-level delivery VLM). With the appearance of VLM with two pick places on opening (so called dual-tray or dual-level delivery), a throughput model for such systems was proposed in the paper of Dukic et al [24].…”

Section: Literature Reviewmentioning

confidence: 99%

“…The front and the rear columns are functioning like shelves to store trays and totes. The centre column is used for lift, which operates within front and rear columns in vertical motion to store or retrieve trays by order [24].…”

Section: Simulation Model Of Vlmmentioning

confidence: 99%

“…The tray is then returned to its storage location. The process can be repeated depending on the size of the order or a batch of orders [24].…”

Section: Simulation Model Of Vlmmentioning

confidence: 99%

“…Since the VLM is divided into three areas or zones (Fig. 2), probabilities p i for accessing zones different zones are calculated by (3) [24]:…”

Section: Notationsmentioning

confidence: 99%

See 2 more Smart Citations

Simulation-Based Performance Analysis of Automated Single-Tray Vertical Lift Module

Grašić¹,

Đukić²,

Opetuk³

et al. 2016

Int. j. simul. model.

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In this paper a simulation analysis of an automated single-tray Vertical Lift Module (VLM) system is presented. Compared to other well-known warehouse systems, a VLM system can provide moderate throughput capacity and lower investment cost. The objective of the study is to investigate benefits of a single-tray VLM system design in terms of reducing transactions' mean cycle time, which results in increased throughput of the system. Performance of the single-tray VLM is evaluated regarding alternative design configurations and the velocity profiles.The results show that single-tray VLM systems are effective and may serve as guideline for warehouse designers in designing a new or improving an existing automated warehouse system.

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Space, Time and Ergonomic Assessment of Order Picking Using Horizontal Carousel

Đukić

Opetuk

Gajšek

2021

Advances in Intelligent Systems and Computing

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A throughput model for a dual-tray Vertical Lift Module with a human order-picker

Cited by 35 publications

References 10 publications

Energy-conscious dynamic sequencing method for dual command cycle unit-load multiple-rack automated storage and retrieval systems

Energy-conscious dynamic sequencing method for dual command cycle unit-load multiple-rack automated storage and retrieval systems

Simulation-Based Performance Analysis of Automated Single-Tray Vertical Lift Module

Space, Time and Ergonomic Assessment of Order Picking Using Horizontal Carousel

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