Travel-time model of dual-command cycles in a 3D compact AS/RS with lower mid-point I/O dwell point policy

Travel-time model of dual-command cycles in a 3D compact AS/RS with lower mid-point I/O dwell point policy
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具有较低中点 I/O 驻留点策略的 3D 紧凑型 AS/RS 中双命令周期的行程时间模型

DOI:
10.1080/00207543.2017.1361049
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发表时间:
2018-02
影响因子:
9.2
通讯作者:
Bipan Zou
Bipan Zou
中科院分区:
工程技术2区
文献类型:
--
作者:
Xianhao Xu;Yeming Yale Gong;Xiangxiang Fan;Guwen Shen;Bipan Zou

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摘要立体紧凑型自动化立体仓库具有自动化程度高、时间效率高、空间利用率高等优点,在立体仓库中得到了广泛的应用。在以往的研究中,使用较低的中点输入/输出(I/O)驻留点的政策考虑单命令周期(SC),本文建立了双命令周期(DC)的旅行时间模型。S/R起重机在空闲时也停留在机架的下中点。我们使用仿真验证分析模型,并使用分析模型优化系统尺寸。通过数值实验对DC和SC进行了比较,结果表明DC在单命令周期时间方面优于SC。
Abstract Three-dimensional compact automated storage/retrieval systems (AS/RS) have been extensively applied in warehouses, with advantages of full automation, time efficiency and high space utilisation. While previous studies that use lower mid-point input/output (I/O) dwell point policy consider single-command cycles (SC), this paper builds travel-time models of dual-command cycles (DC). The S/R crane also dwells in the lower mid-point of the rack when it is idle. We validate analytical models using simulation and use analytical models to optimise system dimensions. Numerical experiments are used to compare DC with SC. The results show that DC outperform SC in terms of cycle time of one command.
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