Strong guidance on mitigating the effects of uncertainties in the brass casting blending problem: a hybrid optimization approach
Yükleniyor...
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The scrap charge optimization problem in the brass casting process is a critical management concern that aims to reduce the charge while preventing specification violations. Uncertainties in scrap material compositions often cause violations in product standards. In this study, we have discussed the aleatory and epistemic uncertainties and modelled them by using probability and possibility distributions, respectively. Mathematical models including probabilistic and possibilistic parameters are generally solved by transforming one type of parameter into the other. However, the transformation processes have some handicaps such as knowledge losses or virtual information production. In this paper, we have proposed a new solution approach that needs no transformation process and so eliminates these handicaps. The proposed approach combines both chance-constrained stochastic programming and possibilistic programming. The solution of the numerical example has shown that the blending problem including probabilistic and possibilistic uncertainties can be successfully handled and solved by the proposed approach. Journal of the Operational Research Society (2013) 64, 562-576. doi:10.1057/jors.2012.50
Açıklama
Anahtar Kelimeler
blending problem, stochastic programming, possibilistic programming, brass casting
Kaynak
Journal Of The Operational Research Society
WoS Q Değeri
Q3
Scopus Q Değeri
Q1
Cilt
64
Sayı
4
Künye
closedAccess
