SIRA BAĞIMLI TEK MAKİNELİ ÇİZELGELEME PROBLEMİNDE ERKENLİK VE GEÇLİK KATSAYILARININ BULANIK AKSİYOMATİK TASARIM YÖNTEMİ İLE BELİRLENMESİ

Yıl 2014, Cilt: 25 Sayı: 3, 20 - 32, 07.11.2014

Harun R. Yazgan , Sena Kır , Seyidenur Özbakır Ezgi Sezik

Öz

Bu çalışmada, tam zamanında üretim felsefesini uygulamak zorunda olan işletmelerin üretim çizelgeleme problemlerini çözerken karşılaştıkları bulanık değerlerin probleme katılarak gerçeğe en uygun çözümü elde etmeleri hedeflenmiştir. Gıda sektöründe faaliyet gösteren bir işletmenin tek bir makine üzerindeki farklı teslim tarihli ürünlerinin tam zamanında sevk edilmesi problemi ele alınmış, erken ve geç üretimler cezalandırılarak ceza maliyeti fonksiyonunu en küçükleyen çizelge oluşturulmuştur.
Çalışma kapsamında, belirli kriterler altında bulanık aksiyomatik tasarım yaklaşımı ile erken ve geç üretimin ceza katsayıları hesaplanmıştır. Bu yaklaşım ile elde edilen ceza değerleri ve işletmeden alınan geçmiş yıllara ait verilerle, bir matematiksel model kullanılarak çizelgeler oluşturulmuş, son olarak da firmada uygulanmış mevcut çizelgeler ile yeni bulunan çizelgeler karşılaştırılarak önerilen yöntemin etkinliği gösterilmiştir.

Anahtar Kelimeler

Aksiyomatik tasarım, erkenlik ceza katsayıları

DETERMINATION OF EARLINESS AND TARDINESS COEFFICIENTS BY FUZZY AXIOMATIC DESIGN TECHNIQUE IN A SEQUENCE DEPENDENT SINGLE MACHINE SCHEDULING PROBLEM

Öz

In this study, it is aimed to reach a goal of finding a more realistic solution with considering  fuzzy values in case of solving production scheduling problem in a company which has to adapt just in time philosophy under severe competition conditions. A schedule is obtained with minimization of a penalty cost function considering production with punishing of earliness and lateness because of an objective is to deliver different due date products in just in time on a single machine in a company which functions in a food industry.
Penalty coefficients of earliness and lateness are determined by an axiomatic design method under certain criteria. Schedules are obtained using a mathematical model with considering penalty values and company’s previous year’s data. Then, effectiveness of the proposed method is illustrated with comparing past schedules and schedules which are calculated by the proposed method.

Anahtar Kelimeler

Axiomatic design, earliness penalty function

Kaynakça

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