The value of quality grading in remanufacturing under quality level uncertainty

Name: The value of quality grading in remanufacturing under quality level uncertainty
Author: Yanıkoğlu, İhsan, Denizel, M.

İsim	The value of quality grading in remanufacturing under quality level uncertainty
Yazar	Yanıkoğlu, İhsan, Denizel, M.
Basım Tarihi:	2021
Basım Yeri	- Taylor & Francis
Konu	Remanufacturing, Production planning, Quality grading, Robust optimisation
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0020-7543
Kayıt Numarası	924d2cfd-660f-4e4c-a8c2-c151ad4c7f4b
Lokasyon	Industrial Engineering
Tarih	2021
Örnek Metin	In remanufacturing, variability in quality levels of available cores (end-of-life products) has an impact on both the process cost and the process time. While previous research suggests that quality grading adds value, there are also concerns raised regarding how reliably the grades can be identified. We argue that uncertainty is inherent to the grading process and investigate the value of grading by taking into account the underlying uncertainty. We develop a robust optimisation model for remanufacturing planning, where both the per-unit cost and resource requirement to remanufacture a core are uncertain parameters that are assumed to reside in two different uncertainty sets; box and ellipsoidal. We analyse both uncapacitated and capacitated cases, and based on extensive numerical analysis, conclude that while on average, there is still value in grading, it becomes significantly smaller when the inherent uncertainty is accounted for. For the capacitated case, we also consider a cost for grading and find that it may cause a significant deterioration in the value of grading, if not rendering the grading totally useless. We show the validity of our approach through extensive numerical analyses.
DOI	10.1080/00207543.2020.1711983
Cilt	59

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The value of quality grading in remanufacturing under quality level uncertainty

Yazar Yanıkoğlu, İhsan, Denizel, M.

Basım Tarihi 2021

Basım Yeri - Taylor & Francis

Konu Remanufacturing, Production planning, Quality grading, Robust optimisation

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0020-7543

Kayıt Numarası 924d2cfd-660f-4e4c-a8c2-c151ad4c7f4b

Lokasyon Industrial Engineering

Tarih 2021

Örnek Metin In remanufacturing, variability in quality levels of available cores (end-of-life products) has an impact on both the process cost and the process time. While previous research suggests that quality grading adds value, there are also concerns raised regarding how reliably the grades can be identified. We argue that uncertainty is inherent to the grading process and investigate the value of grading by taking into account the underlying uncertainty. We develop a robust optimisation model for remanufacturing planning, where both the per-unit cost and resource requirement to remanufacture a core are uncertain parameters that are assumed to reside in two different uncertainty sets; box and ellipsoidal. We analyse both uncapacitated and capacitated cases, and based on extensive numerical analysis, conclude that while on average, there is still value in grading, it becomes significantly smaller when the inherent uncertainty is accounted for. For the capacitated case, we also consider a cost for grading and find that it may cause a significant deterioration in the value of grading, if not rendering the grading totally useless. We show the validity of our approach through extensive numerical analyses.

DOI 10.1080/00207543.2020.1711983

Cilt 59