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The impact of acceleration/deceleration on travel-time models in class-based automated S/R systems

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IIE Transactions

Abstract

The travel time models of Automated Storage and Retrieval systems (AS/RS) machines under randomized storage proposed by Chang et al. (IIE Transactions, 27(1), 108–111, 1995), which consider the speed profiles in real-world applications, are extended in this paper. In the present study, travel time models are proposed that consider various travel speeds with known acceleration and deceleration rates. Compact forms of expected travel times under the class-based storage assignment and full-turnover-based storage assignment have been determined. The results show that both the proposed exponential travel time model and the adjusted exponential model perform satisfactorily and could be useful tools for designing an AS/RS in real-world applications.

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Authors and Affiliations

  1. Department of Industrial Engineering and Engineering Management, National Tsing Hua University, Hsinchu, Taiwan, ROC

    U.P. Wen

  2. Department of Industrial Management, Chung Hua University, Hsinchu, Taiwan, ROC

    D.T. Chang

  3. Promos Technologies Inc., Hsinchu, Taiwan, ROC

    S.P. Chen

Authors
  1. U.P. Wen
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  2. D.T. Chang
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  3. S.P. Chen
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Correspondence to U.P. Wen.

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Wen, U., Chang, D. & Chen, S. The impact of acceleration/deceleration on travel-time models in class-based automated S/R systems. IIE Transactions 33, 599–608 (2001). https://doi.org/10.1023/A:1010848601660

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  • DOI: https://doi.org/10.1023/A:1010848601660

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