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Scheduling of a Real World Filter Production with Lot-Size 1

Authors:
Frank Herrmann

Keywords: Simulation of processing time, scheduling, flow-shop, no-buffer (blocking), no-wait, priority rules, real world application, filter production

Abstract:
In industrial practise, a travelling crane on the ceiling of a factory hall transports products in process from one station to the next one in a production line. Due to space restrictions, there is no buffer between the stations. The production line at Fiedler Andritz can be seen as an example of such a problem class. Such restrictions reduce the set of feasible schedules even more than the no-buffer restrictions discussed in the literature in the case of limited storage. Since this scheduling problem is integrated in the usual hierarchical planning, the tardiness is minimised. Due to the high number of jobs as well as the goal of a simple algorithm, scheduling is always done by priority rules at the company site. The standard approach of using the net processing time causes poor results. A simulation of the processing time is suggested. In addition, several very relevant priority rules from the literature are modified by this simulated processing and significantly better results are obtained.

Pages: 1 to 6

Copyright: Copyright (c) IARIA, 2020

Publication date: October 18, 2020

Published in: conference

ISSN: 2308-4537

ISBN: 978-1-61208-831-0

Location: Porto, Portugal

Dates: from October 18, 2020 to October 22, 2020