Process Planning and Scheduling with WNOPPT Weighted Due-Date Assignment where Earliness, Tardiness and Due-Dates are Penalized
Öz
Process planning, scheduling and due date assignment are three important manufacturing functions in production system in which process planning is input to scheduling processes. Because of rigid process plans, alternative plans are not used that may affect global performance improvement in a bad way. Besides, scheduling without considering process plans causes unbalanced machine loadings and leads to several bottlenecks. In the literature, there are numerous works on process planning and scheduling and works on scheduling with due date assignment. These three functions are not integrated much. According to literature, due dates are assigned without considering weights of the customer. In this study, these three functions are integrated and due dates are given according to the importance of the customers. Eight shop floors are studied. Different levels of integration of these three functions are tested and compared with each other. Two search techniques used which are genetic search and random search and results are compared with ordinary solutions. As the level of integration increased solutions became better and search techniques gave a better result than ordinary solutions and the genetic search outperformed random search.
Anahtar Kelimeler
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Endüstri Mühendisliği
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
1 Eylül 2018
Gönderilme Tarihi
11 Haziran 2018
Kabul Tarihi
1 Ağustos 2018
Yayımlandığı Sayı
Yıl 2018 Cilt: 1 Sayı: 1