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Risk analysis for lot-sizing and maintenance optimization problem under energy constraint with subcontractor solution

Mohamed Ali Kammoun (Université de Lorraine - Site de Metz, Metz, France)
Zied Hajej (Université de Lorraine - Site de Metz, Metz, France)
Nidhal Rezg (Université de Lorraine - Site de Metz, Metz, France)

International Journal of Quality & Reliability Management

ISSN: 0265-671X

Article publication date: 29 July 2020

Issue publication date: 23 November 2020

168

Abstract

Purpose

The main contribution of this manuscript is to suggest new approaches in order to deal with dynamic lot-sizing and maintenance problem under aspect energetic and risk analysis. The authors introduce a new maintenance strategy based on the centroid approach to determine a common preventive maintenance plan for all machines to minimize the total maintenance cost. Thereafter, the authors suggest a risk analysis study further to unforeseen disruption of availability machines with the aim of helping the production stakeholders to achieve the obtained forecasting lot-size plan.

Design/methodology/approach

The authors tackle the dynamic lot-sizing problem using an efficient hybrid approach based on random exploration and branch and bound method to generate possible solutions. Indeed, the feasible solutions of random exploration method are used as input for branch and bound to determine the near-optimal solution of lot-size plan. In addition, our contribution to the maintenance part is to determine the optimal common maintenance plan for M machines based on a new algorithm called preventive maintenance (PM) periods means.

Findings

First, the authors have funded the optimal lot-size plan that should satisfy the random demand under service level requirement and energy constraint while minimizing the costs of production and inventory. Indeed, establishing a best lot-size plan is to determine the appropriate number of available machines and manufactured units per period. Second, for risk analysis study, the solution of subcontracting is proposed by specifying a maximum cost of subcontractor in the context of a calling of tenders.

Originality/value

For maintenance problem, the originality consists in regrouping the maintenance plans of M machines into only one plan. This approach lets us to minimize the total maintenance cost and reduces the frequent breaks of production. As a second part, this paper contributed to the development of a new risk analysis study further to unforeseen disruption of availability machines. This risk analysis developed a decision-making system, for production stakeholders, in order to achieve the forecasting lot-size plan and keeps its profitability, by specifying the unit cost threshold of subcontractor in the context of a calling of tender.

Keywords

Citation

Kammoun, M.A., Hajej, Z. and Rezg, N. (2020), "Risk analysis for lot-sizing and maintenance optimization problem under energy constraint with subcontractor solution", International Journal of Quality & Reliability Management, Vol. 37 No. 6/7, pp. 873-904. https://doi.org/10.1108/IJQRM-07-2019-0226

Publisher

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Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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