Closed-loop supply chain network design under demand, return and quality uncertainty

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Endüstri Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2017

Öğrenci: KADİR BİÇE

Danışman: SAKİNE BATUN

Özet:

In this study,we focus o na closed-loop supply chain(CLSC) network design problem in the presence of uncertainty in demand quantities, return rates, and quality of the returned products. We formulate the problem as a two-stagestochastic mixed-integer program that maximizes the total expected profit. The first-stage decisions in our model are facility location and capacity decisions,and the second-stage decisions are production quantities and the forward/backward flows on the network. We solve the problem by using the L-shaped method in iterative and branch-and-cut frameworks. In order to improve the computational efficiency, we consider various strategies such as adding mean-value cuts to the restricted master problem and generating multiple cuts instead of a single cut a teach iteration or a teach integer feasible solution. We use our numerical results to estimate the value of th estochastic solution and the expected value of perfect information in different problem settings.