DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Hwang, Hark | - |
dc.contributor.advisor | 황학 | - |
dc.contributor.author | Ko, Chang-Seong | - |
dc.contributor.author | 고창성 | - |
dc.date.accessioned | 2011-12-14T02:37:29Z | - |
dc.date.available | 2011-12-14T02:37:29Z | - |
dc.date.issued | 1990 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=61542&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/40397 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 산업공학과, 1990.2, [ iv, 85 p. ] | - |
dc.description.abstract | This study is concerned with multi-aisle S/R machine system (MASS) in which a storage and retrieval (S/R) machine serves storage racks in more than one aisle through a transfer called traverser, and is divided into the following two parts: i) Operating policies of MASS are considered. With randomized storage assignment rule, the average travel time of the S/R machine is determined under single and dual commands. Based on the travel time models, the average performance of S/R machine is evaluated. Also, the expected travel times of S/R machine are derived with two kinds of alternative I/O locations. Then, we propose rack-class-based storage assignment rule (RCB rule) and class selection procedure to find the minimum number of S/R machines required and identify the number of aisles each S/R machine serves. Other storage assignment rule is suggested to reduce the risk of the failure of either S/R machine or other handling device. ii) Design aspects of MASS are studied A mathematical model is developed from which the system parameters, such as length and height of the system, the number of S/R machines, traversers and aisles are determined which provide a minimum initial investment and operating cost. Through experiments, sensitivity analysis is made for throughput and storage volume. Then, we suggest an approach which determines rack storage volume under randomized, class-based and turnover-based storage assignment rules in typical unit-load automated storage and retrieval systems (unit-load AS/RS). Trade-off analysis is made between the storage volume and the expected travel time of S/R machine under each storage rule. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.title | (A) study on multi-aisle storage/retrieval machine system | - |
dc.title.alternative | 다 통로를 처리하는 S/R운반체를 갖는 자동창고 시스템에 대한 연구 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 61542/325007 | - |
dc.description.department | 한국과학기술원 : 산업공학과, | - |
dc.identifier.uid | 000835015 | - |
dc.contributor.localauthor | Hwang, Hark | - |
dc.contributor.localauthor | 황학 | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.