Operations analysis of a two-head flexible assembly machine with interference avoidance /
This research presents the multi-zone work center model which provides the basis for the analysis of flexible assembly machines with multiple manipulators and interference. The multi-zone work center model serves as a general framework that relates several applications traditionally studied using c...
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| Format: | Thesis Book |
| Language: | English |
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[Place of publication not identified] :
[publisher not identified] ;
1996.
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| Online Access: | http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=739668451&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD |
| Summary: | This research presents the multi-zone work center model which provides the basis for the analysis of flexible assembly machines with multiple manipulators and interference. The multi-zone work center model serves as a general framework that relates several applications traditionally studied using context dependent models; namely, a robotics station like RobotWorld, a manufacturing cell tendered by a robot, storing at a rotary rack, a dual crane foundry, and a computer with parallel processors, to mention a few. The model is applied to an electronic assembly machine with two placement heads which share a common working area. It is at the common working area where interference avoidance should be considered. The single-product process planning problem for this kind of flexible assembly machine is defined as the generation of feeder assignment and placement sequence with the objective function of minimizing the assembly time. The problem is formally presented with a mathematical model. The model is analyzed and the structural properties of the problem are analytically specified. It is shown that simple procedures can be used for the generation of feeder assignments and placement sequences. Procedures that exploit the physical characteristics of the machine tend to perform better. In addition, different procedures to solve the multiple-product process planning problem are compared. The objective function considers both assembly and changeover times. It is shown that the use of partial setup strategies generates better results. |
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| Item Description: | Vita. "Major Subject: Industrial Engineering". |
| Physical Description: | xiii, 148 leaves : illustrations ; 28 cm. Issued also on microfiche from University Microfilms Inc. |
| Bibliography: | Includes bibliographical references: pages 142-147. |