- Tytuł:
- A one-pass heuristic for nesting problems
- Autorzy:
-
Kierkosz, Igor
Łuczak, Maciej - Powiązania:
- https://bibliotekanauki.pl/articles/406482.pdf
- Data publikacji:
- 2019
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
cutting
packing
irregular shape
nesting problem
one-pass algorithm
uszczelka
kształt nieregularny
zagnieżdżanie
algorytm jednoprzebiegowy - Opis:
- A two-dimensional cutting (packing) problem with items of irregular shape and rectangular sheets is studied. Three types of problems are considered: single-sheet problems without restrictions on the number of elements, single-sheet problems with restrictions on the number of elements, and cutting stock problems (restricted number of items and unrestricted number of sheets). The aim of the optimization is to maximize the total area of the elements cut from a single plate or to minimize the number of sheets used in cutting. A one-pass algorithm is proposed which uses the popular concept of a no-fit polygon (NFP). The decision on whether an item is cut from a sheet in a given step depends on the value of a fitting function. The fitting function depends on the change in the NFP of individual items. We test eight different criteria for the evaluation of partial solutions. On the basis of numerical experiments, the algorithm that generates the best solution for each of the considered problem types is selected. The calculation results for these algorithms are compared with results obtained by other authors.
- Źródło:
-
Operations Research and Decisions; 2019, 29, 1; 37-60
2081-8858
2391-6060 - Pojawia się w:
- Operations Research and Decisions
- Dostawca treści:
- Biblioteka Nauki
Artykuł