| Grant number: | 13/25743-6 |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| Start date: | July 01, 2014 |
| End date: | December 31, 2018 |
| Field of knowledge: | Engineering - Production Engineering - Operational Research |
| Principal Investigator: | Franklina Maria Bragion de Toledo |
| Grantee: | Larissa Tebaldi de Oliveira |
| Host Institution: | Instituto de Ciências Matemáticas e de Computação (ICMC). Universidade de São Paulo (USP). São Carlos , SP, Brazil |
| Associated research grant: | 10/10133-0 - Cutting, packing, lot-sizing and scheduling problems and their integration in industrial and logistics settings, AP.TEM |
| Associated scholarship(s): | 16/09476-6 - Methods for the irregular packing and cutting path integrated models, BE.EP.DR |
Abstract The packing and cutting problem has been faced by industries of clothing, metalworking, furniture, footwear and other sectors. It consists in cutting larger objects into smaller ones to minimize, for example, material loss. In this research we deal with a two-dimensional irregular packing and cutting problem, known as nesting problem, whose main characteristic (and obstacle) is its irregular items. In some industries, after a packing plan has been defined, a second problem arises: the determination of the minimum cutting path. Although the first problem solution strongly influences the resolution of the second one, to the best of our knowledge these problems have never been addressed in an integrated way. In this project we will propose a model and some methods to fully and/or partially integrate them. As both problems are difficult to solve, matheuristics will be proposed for their resolution and the results will be compared with those obtained from a hierarchical approach. | |
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