Title: A simulation-optimisation approach for reconfigurable inventory space planning in remanufacturing facilities

Authors: Aysegul Topcu; James C. Benneyan; Thomas P. Cullinane

Addresses: Structured Decisions Corporation, 1105 Washington Street Suite 1, West Newton, MA 02465, USA; Carroll School of Management, Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467, USA ' Department of Mechanical and Industrial Engineering, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, USA ' Department of Mechanical and Industrial Engineering, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, USA

Abstract: Although remanufacturing facilities are becoming increasingly vital components in some supply chains, significant variability over time in returned product volumes, reusable part yields, and refurbished item demand can result in significant variability in storage requirements over time. In response, manufacturers can implement reconfigurable inventory systems to accommodate off-setting swings in storage needs between types of components and processing activities, including temporary external storage. A Monte Carlo (MC) simulation-optimisation approach has first been developed to emulate a generalised remanufacturing facility with random receiving patterns, component yields, and refurbished demand. Then, a multi-dimensional golden section search algorithm is implemented to identify optimal storage capacities and reconfiguration decisions in each time period that minimise long-term expected total cost. In pilot applications, improvements over non-reconfigurable systems range from 9% to 33% reductions in total storage space costs.

Keywords: Monte Carlo simulation; heuristic optimisation; optimal storage capacities; reconfiguration decisions; capacity planning; remanufacturing; reverse logistics; facility layout; supply chain modelling; supply chain management; SCM; reconfigurable inventory systems; inventory space planning.

DOI: 10.1504/IJBPSCM.2013.051656

International Journal of Business Performance and Supply Chain Modelling, 2013 Vol.5 No.1, pp.86 - 114

Published online: 30 Jan 2014 *

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