Production Scheduling with Capacity-Lot Size and Sequence Consideration

  • Rattapon Patikarnmonthon Chulalongkorn University
  • Manoj Lohatepanont Chulalongkorn University

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Abstract

The General Lot-sizing and Scheduling Problem (GLSP) is a common problem found in continuous production planning. This problem involves many constraints and decisions including machine capacity, production lot-size, and production sequence. This study proposes a two-phase algorithm for solving large-scale GLSP models. In Phase 1, we generate patterns with a specific batch size and capacity and in Phase 2, based on the patterns selected in Phase 1, we optimize the production allocation. Additionally, the external supplies are included in the formulation to reflect the real situation in business with limited resources. In this work, the justification of the formulation is based on the ability of solving and calculation time. The proposed formulation was tested on eight scenarios. The results show that the proposed formulation is more tractable and is easier to solve than the GLSP.

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Author Biographies
Rattapon Patikarnmonthon

Logistics and Supply Chain Management, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand

Manoj Lohatepanont

Department of Civil Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Published
Vol 22 No 1, Jan 31, 2018
How to Cite
R. Patikarnmonthon and M. Lohatepanont, “Production Scheduling with Capacity-Lot Size and Sequence Consideration”, Eng. J., vol. 22, no. 1, pp. 93-107, Jan. 2018.

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