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All Journal JURNAL AKUNTANSI, EKONOMI dan MANAJEMEN BISNIS JURNAL REKAYASA SISTEM INDUSTRI Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Cahaya Mandalika Jurnal Pengabdian dan Edukasi Sekolah (Jubaedah) Sejahtera: Jurnal Inspirasi Mengabdi Untuk Negeri Jurnal Taguchi : Jurnal Ilmiah Teknik dan Manajemen Industri Serambi Engineering Uranus: Jurnal Ilmiah Teknik Elektro, Sains dan Informatika Journal of Integrated System
Sherin Ramadhania
Teknik Industri, Fakultas Teknologi Industri, Institut Teknologi Sumatera, Lampung, Indonesia
Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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IMPLEMENTASI STATISTICAL PROCESS CONTROL (SPC) DAN FAILURE MODE AND EFFECT ANALYSIS (FMEA) PADA PROSES PRODUKSI SHEET FILM DI PERUSAHAAN PET FILM Ramadhania, Sherin; Susilo, Diyan; Hanan, Siti
Jurnal Ilmiah Teknik dan Manajemen Industri Vol. 4 No. 2 (2024): Jurnal Taguchi : Jurnal Ilmiah Keilmuan Teknik dan Manajemen Industri
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/tgc.v4i2.248

Abstract

PT. ABC faces a quality control issue with a defect rate of 5.5%, resulting in customer complaints. This study aims to identify the types of defects in sheet film products, analyze their root causes, and evaluate quality control measures to reduce defects. The research uses Statistical Process Control (SPC) to monitor the production process and Failure Mode and Effect Analysis (FMEA) to analyze potential failures in the production system. The SPC analysis revealed that the most frequent defects were ILK Defect (501 rolls), followed by Thickness Defect (188 rolls) and Scratch Defect (100 rolls). The root causes of defects were identified using a fishbone diagram, which pointed to Method, Material, Machine, and Man as the main factors. FMEA results indicated that the primary cause of defects was an issue with the hopper on the machine, which caused material transfer delays, leading to V-ILK and Thickness Defects. This study recommends improving machine maintenance, revising operational procedures, and enhancing operator training to reduce defects and improve product quality
PELATIHAN PENGEMBANGAN SOFT SKILLS MAHASISWA DALAM MENGHADAPI TANTANGAN BERORGANISASI Ramadhania, Sherin; Abid, Muhammad Miftahul; Suroso, Muhammad Suryo Panotogomo Abi; Permata, Nia Sastra
Jubaedah : Jurnal Pengabdian dan Edukasi Sekolah (Indonesian Journal of Community Services and School Education) Vol. 4 No. 2 (2024): Jurnal Pengabdian dan Edukasi Sekolah (Jubaedah)
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/jub.v4i2.243

Abstract

In the rapidly accelerating era of globalization, soft skills have become crucial elements required by university graduates, alongside hard skills. Soft skills such as leadership, time management, self-management, and group management are essential in both the professional world and organizational settings. In the Industrial Engineering Student Association (HMTI) at the Institut Teknologi Sumatera (ITERA), many students still face challenges in developing these essential soft skills. Therefore, a structured and continuous soft skills development training program is necessary. This community service activity was conducted by the lecturers of Industrial Engineering at ITERA using coaching and simulation games to equip students with relevant soft skills for managing the organization. The coaching method was used to provide direct guidance, while simulation games were applied to train communication skills, decision-making, and problem-solving in real-life scenarios. The training proved to be effective in enhancing students' leadership, time management, and self-management abilities, as well as helping them face challenges in organizational and professional settings. The PDCA (Plan, Do, Check, Action) cycle was also implemented to evaluate and improve the organizational processes. The conclusion of this activity is that the development of soft skills plays a significant role in the success of student organizations and future careers. Several recommendations are provided to enhance the effectiveness of future training, including aligning the training materials with the specific needs of organizations and collaborating with professionals from various industries
Identifikasi Potensi Bahaya Pada UKM Tahu dengan Metode Hazard Identification and Risk Assessment Sebagai Langkah Penerapan Manajemen K3 Achmad Samudera Dewantara; Nia Sastra Permata; Sherin Ramadhania
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The implementation of Occupational Health and Safety (OHS) management reflects a business owner's commitment to protecting workers' health and safety. One key step in implementing OHS is identifying and mapping potential workplace hazards. In small and medium enterprises (SMEs) producing tofu, such hazards often arise during the production process. The HIRA (Hazard Identification and Risk Assessment) method is used for hazard mapping because it systematically identifies hazard locations and critically analyzes risk levels. This study was conducted at a tofu SME in Krajan, Surakarta, and identified several potential hazards categorized into four groups: hazards from the work environment, production materials, unsafe equipment, and production waste. The analysis revealed five high-risk hazards and four moderate-risk hazards. Through hazard mapping, business owners are expected to take preventive measures to minimize or eliminate exposure to these risks. This ensures worker health and safety while maintaining a smooth and uninterrupted production process.
Usulan Tata Letak Bahan Baku dalam Gudang untuk Meminimasi Jarak Material Handling dengan Metode Dedicated-Storage di PT ABC Rudi Atoric Salvano; Sherin Ramadhania; Siti Hanan
Journal of Integrated System Vol. 8 No. 1 (2025): Journal of Integrated System Vol. 8 No. 1 (June 2025)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jis.v8i1.10217

Abstract

PT ABC adalah perusahaan petrokimia yang memproduksi biji plastik dan memiliki tiga gudang, salah satunya adalah gudang bahan baku pendukung. Gudang ini mengalami masalah penempatan yang tidak teratur, dimana barang tidak dikelompokkan berdasarkan jenisnya, sehingga menyulitkan staf dalam pencarian dan memperpanjang jarak material handling. Penelitian ini bertujuan untuk mengevaluasi tata letak dan jarak tempuh material handling pada gudang tersebut setelah usulan perbaikan tata letak diimplementasikan. Penelitian juga membandingkan tata letak gudang saat ini dengan tata letak usulan yang dioptimalkan menggunakan metode Dedicated Storage, yaitu metode pengaturan lokasi barang secara tetap sesuai jenisnya, serta menghitung jarak tempuh menggunakan metode rectilinear distance. Berdasarkan hasil analisis, total jarak tempuh material handling pada kondisi awal adalah 40.670,5 meter, yang diakibatkan oleh tata letak yang tidak optimal. Setelah perbaikan tata letak diusulkan, jarak tempuh material handling berkurang signifikan menjadi 9.545,25 meter, dengan pengurangan jarak sebesar 31.125 meter atau setara dengan penurunan sebesar 76,60%.
PREVENTIVE MAINTENANCE MENGGUNAKAN METODE RELIABILITY CENTERED MAINTENANCE II PADA FASILITAS PRODUKSI KRITIS PERUSAHAAN BAJA Ramadhania, Sherin; Dewantara, Achmad Samudra; Permata, Nia Sastra; Suroso, Muhammad Suryo Panotogomo Abi
JURNAL REKAYASA SISTEM INDUSTRI Vol 10 No 2 (2025): Mei 2025
Publisher : Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/jrsi.v10i2.9418

Abstract

One of the largest steel industries in Indonesia produces cold-rolled sheet steel, with production handled by the Cold Rolling Mill Factory. This study focuses on the Continuous Pickling Line and Continuous Tandem Cold Mill units, which have the highest downtime of 230 hours, resulting in a delay cost of 6 billion Rupiah. The objective is to identify the functions, failures, causes, and impacts on critical components, and to propose appropriate maintenance activities and intervals. Failure information is gathered using failure mode and effect analysis (FMEA), while the appropriate maintenance activities are determined using a reliability-centered maintenance II decision worksheet. The study identifies four critical components in the CPL unit and five in the CTCM unit. Five failure modes are addressed by on-condition scheduling, seven by restoration scheduling, and seven by failure interval. Proposed maintenance intervals for on-condition scheduling include 9,413 minutes for stand #5, 8,371 minutes for stand #4, 12,383 minutes for stand #3, 12,996 minutes for stand #2, and 7,123 minutes for stand #1. Restoration scheduling intervals are 34,000 minutes for the saddle breaker, 21,000 minutes for the wiper, and between 12,000–23,000 minutes for other components. Failure interval maintenance for the welder, pickling tank, and stands ranges from 2,409 to 6,540 minutes.
Penentuan Rute Pelayaran Kapal Tramp: Integrasi Kecepatan Optimal, Displacement Kapal, dan Pemilihan Pelabuhan Pangkal Suroso, Muhammad; Sherin Ramadhania; Nia Sastra Permata; Achmad Samudra Dewantara; Dian Fajarika
Jurnal Serambi Engineering Vol. 10 No. 3 (2025): Juli 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

PT XYZ is a shipping company that operates in the ad hoc and short-term contract (spot charter) market. The company faces challenges in selecting the most profitable cargo offers and in managing fuel consumption in order to maximise profits and minimise operational costs. This study aims to develop a mathematical model that optimises revenue through optimal cargo selection, while simultaneously minimising operational costs, including fuel consumption for the main and auxiliary engines. The model is based on the actual conditions of the company's fleet and focuses on tramp general cargo services operating under less-than-shipload (LTS) conditions. In addition to addressing fuel management, the study covers fleet routing, vessel allocation and port docking considerations. The proposed model uses a mixed integer nonlinear programming (MINLP) approach to optimise variables such as sailing speed, ship displacement and the sequence of port visits. Feasibility analysis using real fleet data and hypothetical cargo offers indicates that the model consistently produces viable solutions. Sensitivity analysis of key parameters within a variation range of -50% to +50% from their nominal values confirms that the model's outputs remain within acceptable bounds.
Co-Authors Achmad Samudera Dewantara Achmad Samudra Dewantara Afif, Sofwan Asep Rahmatullah Asep Rahmatullah Asih Setyo Rini Asih Setyo Rini, Asih Setyo Aulia, Nindy Nur Bambang Setyo Panulisan Budiharjo Budiharjo, Budiharjo Dedy Khaerudin Dewantara, Achmad Samudra Dian Fajarika, Dian Dinanjar Husni Mubarok Gandara, Ganjar Sidik Gunawan Gunawan Gunawan Witjaksono Herdiyani, Ahmad Hipni, Ahmad Iqballulah Iqballulah Irfan Muhammad Lucky Setiawan Lucky Setiawan, Lucky Majdi, Nur Cholis Malik Malik Mislan Mislan Mislan Mislan Mislan Muhammad Ade Kurnia Harahap Muhammad Miftahul Abid Mustofa Zein, Aji Mustri, Pingki Avrillia Wandani Nia Sastra Permata Ramadhan, Muhamad Rafli Rudi Atoric Salvano Siti Hanan Sri Sukmawati Suroso, Muhammad Suroso, Muhammad Suryo Panotogomo Abi Susilo, Diyan Tirangga Ansori Wirabuana, Setyo Fiddin Yolla Sukma Handayani