Title: An integrated cost model for production scheduling and perfect maintenance

Authors: Laith A. Hadidi, Umar M. Al-Turki, M. Abdur Rahim

Addresses: Department of Systems Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia. ' Department of Systems Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia. ' Faculty of Business Administration, University of New Brunswick, Fredericton, NB, Canada, E3B 5A3

Abstract: Production scheduling deals with scheduling production jobs on a machine (single or multiple) in order to optimise a specific objective such as total weighted completion times or total weighted tardiness. The assumption that machines are always available for processing jobs is generally used in the production scheduling literature. In reality, machines often are unavailable due to preventive maintenance activities or machine failure. Production scheduling and preventive maintenance planning are interrelated, but are most often treated separately. This interdependency seems to be overlooked in the literature. This work integrates, simultaneously, the decisions of preventive maintenance and job order sequencing for a single machine. The objective is to find the job order sequence and maintenance decisions that would minimise the expected cost.

Keywords: production scheduling; preventive maintenance; deteriorating production processes; integrated models; unreliable machine; cost models; job sequencing.

DOI: 10.1504/IJMOR.2011.040875

International Journal of Mathematics in Operational Research, 2011 Vol.3 No.4, pp.395 - 413

Published online: 12 Feb 2015 *

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