AS/R system travel time in class-based storage with different input-output point levels: a proposed formula

Abstract

Purpose This paper aims to propose a simulation model integrated with an empirical regression analysis to provide a new mathematical formulation for automated storage and retrieval system (AS/RS) travel time estimation under class-based storage and different input/output (I/O) point vertical levels. Design/methodology/approach A simulation approach is adopted to compute the travel time under different warehouse scenarios. Simulation runs with several I/O point levels and multiple shape factor values. Findings The proposed model is extremely precise for both single command (SC) and dual command (DC) cycles and very well fitted for a reliable computation of travel times. Research limitations/implications The proposed mathematical formulation for estimating the AS/RS travel time advances widely applied methodologies existing in literature. As well as, it provides a practical implication by supporting faster and more accurate travel time computations for both SC and DC cycles. However, the regression analysis is conducted based on simulated data and can be refined by numerical values coming from real warehouses. Originality/value This work provides a new simulation model and a refined mathematical equation to estimate AS/RS travel time.

Improving Warehouse Management Processes to Ensure On-Time Delivery of Paprika-Based Products

“…The application of Lean Manufacturing techniques in warehouses has proven to be useful for the elimination of waste, reduction of unproductive times and optimization of activities and processes. Authors such as [18], [19] [20] faced with problems such as excess waste in the warehouse and orders delivered out of time due to excess time, personnel movements and increase of defective products, this motivated the authors to implement tools such as VSM, Kanban and 5S. The 5S helps the sustainability of the company through the classification, ordering, standardization, and maintenance of new processes after the implementation of the VSM and in conjunction with the Kaban method, the elimination of defective products.…”