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All Journal Jurnal Optimasi Sistem Industri JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING
Andri Nasution
Universitas Sumatera Utara
Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Rancangan Perbaikan Lingkungan Kerja Dengan Menggunakan Metode 5S Di Bengkel SMK TR Yayasan Pendidikan Sinar Husni Andri Nasution; Ratih Maulidina Syahriani; Joko Susilo
JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Vol 5, No 2 (2021): EDISI NOVEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jime.v5i2.5782

Abstract

Kegiatan praktek belajar di bengkel tidak akan lepas dari berbagai kemungkinan timbulnya kecelakaan kerja. Kecelakaan kerja yang dapat terjadi yaitu luka,baik yang bersifat luka permanen, luka ringan, maupun gangguan kesehatan. Ada potensi bahaya yang mungkin timbul tetapi tidak disadari oleh setiap siswa. Tempat yang paling berisiko dalam lingkungan sekolah adalah bengkel, yang merupakan tempat praktek bagi siswa ataupun bagi guru dalam melakukan bimbingan praktek. Tujuan penelitian yang dilakukan adalah untuk menciptakan kondisi lingkungan kerja yang lebih baik dari sebelumnya pada bengkel SMK TR Yayasan Pendidikan Sinar Husni. Penelitian ini memiliki rangkaian kegiatan yang diawali dengan tinjauan pustaka kemudian dilanjutkan dengan pembuatan lembar identifikasi bahaya yang membahas hubungan antara kegiatan di dalam bengkel dengan potensi bahaya serta solusinya. Langkah selanjutnya adalah dengan menganalisis dan memberikan penilaian risiko terhadap potensi bahaya yang telah diidentifikasi dengan menggunakan metode HIRARC. Hasil penelitian menunjukkan scoring 5S secara keseluruhan terdapat sedikit kesesuaian. Untuk kategori seiso telah mendapat scoring dengan keterangan cukup sesuai. Namun, untuk kategori seiri, seiton seitsuke, dan shitsuke masih mendapat scoring dengan keterangan terdapat sedikit kesesuaian, sehingga perlu dilakukan perbaikan.
The Supply Chain Analysis of Traditional Fish Catches of Bagan Deli City Medan and Bagan Percut of Deli Serdang District: Supply chain analysis Andri Nasution; Tania Alda
JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Vol. 7 No. 2 (2023): EDISI NOVEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jime.v7i2.10202

Abstract

Traditional fishermen are fishermen who catch fish in waters which are traditional fishing rights that have been used for generations by local culture and wisdom. Fish is a marine product that is easily damaged or perishable, and this is due to enzymatic activity in the fish's body and the activity of microorganisms due to wrong handling. The cities of Medan and Deli Serdang are areas that have good potential for marine products. Enjoying fish products from the sea by consumers, fish distribution was carried out at Belawan Port, precisely at Belawan Ocean Fisheries Port and Fish Auction Place Bagan Percut, Deli Serdang. This study looks at the supply chain or supply chain for traditional fishermen in the North Sumatra region, especially in Medan City and Deli Serdang Regency. The research method used is descriptive qualitative research. The results of the study found that the supply chain of most fishermen caught in Bagan Deli through agents and distributors of fish was then brought to the market or auction place. There are also fishermen in Bagan Deli who directly sell their catch at the local market where the fishing group is located, namely the Bagan Deli and Belawan Traditional Markets. Meanwhile, Bagan Percut of Deli Serdang Regency shows that the role of fish agents and distributors in the supply chain of capture fishermen is very influential. Through these fish agents and distributors, distribution channels can be determined based on the amount or amount of fish caught.
A Multi-Objective Double Row Layout Problem Considering Safety Distances and Geometrical Constraints Achmad Pratama Rifai; Setyo Tri Windras Mara; Rachmadi Norcahyo; Andri Nasution
Jurnal Optimasi Sistem Industri Vol. 24 No. 2 (2025): Published in December 2025
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (621.938 KB) | DOI: 10.25077/josi.v24.n2.p174-197.2025

Abstract

This study addresses an enhanced version of the Double Row Layout Problem (DRLP) by incorporating two critical constraints: minimum safety distances between machines and geometric limitations on row lengths. A bi-objective mixed-integer non-linear programming (MINLP) model is formulated to simultaneously minimize material handling costs and penalties for violating safety distance requirements. To solve the problem efficiently, a novel metaheuristic called Improved Multi-Objective Variable Neighborhood Search (IMOVNS) is proposed. IMOVNS extends the standard MOVNS by integrating an adaptive archive update strategy and a probabilistic acceptance mechanism inspired by AMOSA, thereby improving both convergence and diversity in Pareto front generation. This study contributes to the layout optimization literature by proposing a tailored MOVNS variant explicitly designed for safety-aware and geometry-constrained DRLP, a challenging problem variant that has received limited attention in prior research. Extensive experiments on 27 DRLP instances show that IMOVNS demonstrates strong performance, significantly outperforming NSGA-II and showing competitive or superior results compared to AMOSA and MOVNS in terms of convergence and solution diversity. Statistical tests further confirm the significant superiority of IMOVNS, particularly over NSGA-II. Additionally, a key managerial insight reveals that layouts with unbalanced row lengths favour safety compliance, while balanced layouts minimize material handling costs. The Pareto-optimal solutions generated by IMOVNS enable decision-makers to select layout configurations that align with specific operational priorities. These findings highlight the practical relevance and robustness of IMOVNS in solving real-world multi-objective facility layout problems under complex spatial and safety constraints.
Co-Authors Achmad Pratama Rifai Joko Susilo Rachmadi Norcahyo Ratih Maulidina Syahriani Setyo Tri Windras Mara Tania Alda