Conference Paper

Simulation assisted match-up rescheduling of flexible production systems subject to execution exceptions.

DOI: 10.1145/1351542.1351866 Conference: Proceedings of the Winter Simulation Conference, WSC 2007, Washington, DC, USA, December 9-12, 2007
Source: DBLP

ABSTRACT An immense amount of research work has been done in the areas of scheduling and re-scheduling of various types of manufacturing systems. In this paper we present a simula- tion assisted approach to rescheduling complex production system configurations subject to execution exceptions. Is- sues like how to bring the deviation of a schedule due to exceptions back to its original trajectory and how to do this in real-time without affecting co-ordination problems on the shop floor are addressed. Our results show that combin- ing simulation and optimization for rescheduling indeed helps to achieve both these objectives and that this ap- proach proves to be promising to help reduce chaos in to- day's dynamic manufacturing environments.

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    ABSTRACT: Increased demand for customised products, sophisticated scheduling requirements caused by shorter product life cycle and hardly foreseeable disturbances have created a new challenge for the manufacturing industry. Planned production schedules often become ineffective in actual execution on the shop floor. If forecasts become less and less accurate, support for continuous changes is helpful. Given the high degree of automation in manufacturing systems, automatic control systems have become central to shop floors’ responsiveness. However, their state-of-the-art architectures are unable to cope with the challenge successfully. Improvements in information and communication technology makes the integration of simulation and control system more promising. The paper proposes an approach for supporting changes of routing strategy in an automated material flow system by utilising the integration. The approach includes (re-)planning of the automated material flow system, commissioning its logic control and controlling the material flow.
    Procedia CIRP. 01/2013; 7:407–412.

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