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On-line scheduling in metal removal processing using variable routings and control strategies
This item is provided by the institution :
National Technical University of Athens
Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA
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ΕΚΤ item type
Journal part
(EN)
Scientific article
(EN)
EKT year
1995
(EN)
EKT historical period
Title
On-line scheduling in metal removal processing using variable routings and control strategies (EN)
Creator
Mamalis, AG (EN)
Pachos, E (EN)
Malagardis, I (EN)
Description
In this paper, a simulation program for the analysis of operations in a manufacturing system is presented. The simulation program is integrated using a control algorithm and a relational data model implemented on the ORACLE RDBMS into a scheduling control system. The control algorithm considers the on-line use of alternative machines tools and/or alternative control strategies in order to optimize a given criterion, which in the present case corresponds to the total delay of jobs in the shop. A series of variables, such as the average machine utilization, were chosen to be the output. A sequential optimization approach, where the dynamically calculated average delay per job is assumed to represent the system state up to the current decision stage, is used for the control algorithm. An application of the scheduling control system to the manufacturing of a piston pump is also presented. The on-line utilization of variable routings and strategies was investigated, demonstrating the overall performance of the algorithm, namely a reduction of the total processing time up to 30%. © 1995. (EN)
Type
journalArticle (EN)
Subject
Reciprocating pumps (EN)
on-line scheduling (EN)
Computer Science, Interdisciplinary Applications (EN)
variable routing/control strategies (EN)
Computer simulation (EN)
simulation program (EN)
Process control (EN)
Online scheduling (EN)
Control systems (EN)
Data structures (EN)
Scheduling (EN)
Relational database systems (EN)
Variable routing/control strategies (EN)
Optimization (EN)
Operations Research & Management Science (EN)
Algorithms (EN)
Online systems (EN)
Metal removal processing (EN)
Calculations (EN)
Engineering, Manufacturing (EN)
Machine tools (EN)
Performance (EN)
Provider
National Technical University of Athens
Repository / collection
Digital Library of National Technical University of Athens | Dspace@NTUA
Subcollections
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Journal
Computer Integrated Manufacturing Systems (EN)
Language
English
Issued
1995 (EN)
Identifier
http://hdl.handle.net/123456789/11609
1 (EN)
35 (EN)
0951-5240 (EN)
10.1016/0951-5240(95)92811-8 (EN)
ISI:A1995QL55200005 (EN)
8 (EN)
40 (EN)
Publisher
BUTTERWORTH-HEINEMANN LTD (EN)
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