Desain Jaringan Rantai Pasok Berkelanjutan Dan Berketahanan Pada Closed-Loop Supply Chain Dengan Pendekatan Optimasi Multi Obyektif

Yuniarti, Rahmi (2026) Desain Jaringan Rantai Pasok Berkelanjutan Dan Berketahanan Pada Closed-Loop Supply Chain Dengan Pendekatan Optimasi Multi Obyektif. Doctoral thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Peningkatan kompleksitas dan ketidakpastian rantai pasok global menuntut perusahaan membangun Closed-Loop Supply Chain (CLSC) yang berkelanjutan dan tangguh terhadap gangguan distribusi. Penelitian ini bertujuan mengembangkan model Sustainable Resilient Supply Chain Network Design (SR- SCND) berbasis CLSC yang mengintegrasikan aspek ekonomi, lingkungan, sosial, perilaku konsumen, ekonomi sirkular, dan strategi lateral transshipment untuk meningkatkan ketahanan jaringan terhadap disrupsi. Penelitian ini mengembangkan dua model optimasi Mixed Integer Linear Programming (MILP) berbasis multiobjektif. Model 1 berfokus pada minimisasi biaya dan dampak lingkungan serta maksimisasi aspek sosial dengan mengintegrasikan keputusan lokasi fasilitas, aliran produk, buyback discount, Consumer Environmental Awareness (CEA), dan minimum acceptance quality level. Selanjutnya, Model 2 dikembangkan dengan mengintegrasikan keputusan harga jual, investasi periklanan dalam menentukan banyaknya permintaan. Kedua model diselesaikan menggunakan pendekatan Weighted Sum Method (WSM) dan dievaluasi pada tiga skenario, yaitu kondisi baseline, disrupsi, dan disrupsi dengan penerapan lateral transshipment. Hasil penelitian menunjukkan bahwa pada kondisi baseline kedua model mampu memenuhi seluruh permintaan pelanggan dengan service level. Pada Model 1, disrupsi menyebabkan service level turun menjadi 92,62%, disertai peningkatan total biaya akibat munculnya unmet demand dan biaya penalti. Penerapan lateral transshipment berhasil memulihkan seluruh permintaan pelanggan sehingga service level kembali mencapai 100%, dengan tambahan biaya transportasi dan emisi karbon, tanpa mengubah jumlah tenaga kerja. Pada Model 2, penerapan strategi yang sama meningkatkan service level dari 89,60% menjadi 100%, serta mempertahankan aktivitas reverse logistics, remanufaktur, tingkat circularity, dan penyerapan tenaga kerja mendekati kondisi normal. Hasil tersebut menunjukkan bahwa strategi lateral transshipment mampu meningkatkan ketahanan jaringan terhadap gangguan distribusi.
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The increasing complexity and uncertainty of global supply chains require companies to build a Closed-Loop Supply Chain (CLSC) that is sustainable and resilient to distribution disruptions. This study aims to develop a CLSC-based Sustainable Resilient Supply Chain Network Design (SR-SCND) model that integrates economic, environmental, social, consumer behavior, circular economy, and lateral transshipment strategies to increase network resilience to disruption. This study develops two multi-objective Mixed Integer Linear Programming (MILP) optimization models. Model 1 focuses on minimizing costs and environmental impacts and maximizing social aspects by integrating facility location decisions, product flow, buyback discounts, Consumer Environmental Awareness (CEA), and minimum acceptance quality level. Furthermore, Model 2 is developed by integrating selling price decisions and advertising investments in determining the amount of demand. Both models are solved using the Weighted Sum Method (WSM) approach and evaluated in three scenarios, namely baseline conditions, disruption, and disruption with the application of lateral transshipment. The results show that in the baseline condition, both models are able to meet all customer demands with a service level. In Model 1, the disruption caused the service level to drop to 92.62%, accompanied by an increase in total costs due to the emergence of unmet demand and penalty costs. The implementation of lateral transshipment successfully restored all customer demand, returning the service level to 100%, with additional transportation costs and carbon emissions, without changing the workforce. In Model 2, the implementation of the same strategy increased the service level from 89,60% to 100%, while maintaining reverse logistics, remanufacturing activities, circularity levels, and workforce absorption near normal conditions. These results indicate that the lateral transshipment strategy can increase network resilience to distribution disruptions

Item Type:	Thesis (Doctoral)
Uncontrolled Keywords:	R-SCND, CLSC, Remanufacturing, Multi-objective Optimization, Lateral Transshipment SR-SCND, CLSC, Remanufacturing, Multi-objective Optimization, Lateral Transshipment
Subjects:	T Technology > T Technology (General) > T58.62 Decision support systems
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Industrial Engineering > 26001-(S3) PhD Thesis
Depositing User:	Rahmi Yuniarti
Date Deposited:	06 Aug 2026 07:04
Last Modified:	06 Aug 2026 07:16
URI:	http://repository.its.ac.id/id/eprint/144176

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