Simulation-based design evaluation of automated storage/retrieval systems Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/9306t360j

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  • Automated storage and Retrieval (AS/R) systems have had a significant impact on storage and retrieval of finished goods, work-in-process, and raw materials and supplies. A microcomputer-based simulation model was developed to evaluate different unit load AS/R systems serving multiple input sources and output destinations. The simulation results were statistically analyzed on different performance measures including throughput, mean waiting times maximum waiting times and rejects. The results showed that for single-dock, square-in-time layouts, the class based arrangement produced significantly higher throughput for all scheduling policies. Among the scheduling policies, the relief nearest neighbor produced consistently higher throughput. Comparing square-in-time versus non-square-in-time layouts, the square-in-time layout performance was better; the performance deteriorated as deviations from square-in-time increased. For the two dual-dock layouts, at lower arrival rates the dedicated layout produced higher throughput; there was no significant difference between the two layouts at higher arrival rates.
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  • File scanned at 300 ppi (Monochrome, 8-bit Grayscale) using ScandAll PRO 1.8.1 on a Fi-6770A in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
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  • description.provenance : Submitted by Kaylee Patterson (kdpscanner@gmail.com) on 2013-02-06T22:54:13Z No. of bitstreams: 1 ShroffRaiN1992.pdf: 6415653 bytes, checksum: 4313b74159f2be6bcd74e3874ebcefa2 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-02-07T17:13:48Z (GMT) No. of bitstreams: 1 ShroffRaiN1992.pdf: 6415653 bytes, checksum: 4313b74159f2be6bcd74e3874ebcefa2 (MD5)
  • description.provenance : Made available in DSpace on 2013-03-04T20:48:37Z (GMT). No. of bitstreams: 1 ShroffRaiN1992.pdf: 6415653 bytes, checksum: 4313b74159f2be6bcd74e3874ebcefa2 (MD5) Previous issue date: 1992-01-14
  • Figures in original document are black and white photocopies. Best scan available.
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-03-04T20:48:37Z (GMT) No. of bitstreams: 1 ShroffRaiN1992.pdf: 6415653 bytes, checksum: 4313b74159f2be6bcd74e3874ebcefa2 (MD5)

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