Travel time model for the warehousing system with a tower crane storage and retrieval machine

Travel time model for the warehousing system with a tower crane storage and retrieval machine

0.00 Avg rating0 Votes
Article ID: iaor20031417
Country: Netherlands
Volume: 43
Issue: 3
Start Page Number: 495
End Page Number: 507
Publication Date: Sep 2002
Journal: Computers & Industrial Engineering
Authors: , ,
Keywords: warehouse management
Abstract:

This paper studies the characteristics of a warehousing system in which the storage and retrieval orders are performed by a tower crane. The crane is located at the center of the round storage area and it can rotate in both clockwise and counterclockwise directions. We develop some mathematical travel time models for this warehousing system using the characteristic of the storage and retrieval (S/R) crane that the S/R device can move in radial and circumferential directions simultaneously. First, we derive travel time models for single command and dual command cycles under the randomized storage assignment rule. Then, assuming that the turnover rates for items are different from each other, we calculate expected travel time under the turnover-based assignment rule through a numerical approach. For each model some illustrative examples are presented.

Reviews

Required fields are marked *. Your email address will not be published.