| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [1] Universidade Estadual de Campinas. IMECC. Departamento de Matemática Aplicada - Brasil
[2] Universidade Estadual de Campinas. IMECC. Departamento de Matemática Aplicada - Brasil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Pesquisa Operacional; v. 41, 2021-06-11. |
| Abstract | |
ABSTRACT In many manufacturing industries, the production process involves the production of objects and the cutting of such objects into smaller pieces in order to meet a specific demand. In the optimization of these processes, one can identify the lot sizing and the cutting stock problems. In the literature, these problems are mostly separately dealt. However, treating these two problems in an integrated approach can decrease overall costs. In this research, we deal with the coupled lot sizing and cutting stock problem. It is proposed a mathematical formulation for the production and cutting of paper based on a real case, which considers setup costs and limited machine capacity in the production process of the objects. For the solution of the proposed model, we used a column generation approach and a relax-and-fix heuristic. Computational tests were carried out in order to analyze the methodology used in the resolution of the model. The results showed to be competitive in a reasonable computational time. (AU) | |
| FAPESP's process: | 16/01860-1 - Cutting, packing, lot-sizing, scheduling, routing and location problems and their integration in industrial and logistics settings |
| Grantee: | Reinaldo Morabito Neto |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 17/18192-4 - Optimization of the cutting process integrated to the lot sizing in multi-plant industries |
| Grantee: | Livia Maria Pierini |
| Support Opportunities: | Scholarships in Brazil - Doctorate |