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All Journal Juriti Prima (Jurnal Ilmiah Teknik Industri Prima) JISO : Journal of Industrial and Systems Optimization IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Uun Novalia Harahap
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Agriculture, Biological Sciences & Forestry Automotive Engineering Computer Science & IT Economics, Econometrics & Finance Energy Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Transportation

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Analisis Perencanaan Bahan Material Pemasangan Trafo Dengan Metode Material Requirement Planning Uun Novalia Harahap
JURITI (Jurnal Ilmiah Teknik Industri )Prima Vol 5 No 1 (2021): Juriti Prima (Jurnal Ilmiah Teknik Industri Prima)
Publisher : Fakultas Teknologi dan Ilmu Komputer, Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/juritiprima.v5i1.2494

Abstract

Pertumbuhan pembangunan yang memicu pertumbuhan ekonomi di Indonesia, listrik merupakan insfrastuktur penting dalam mendukung pertumbuhan ekonomoni, mendorong investasi, dan pemerataan industri. Pada perannya pemsangan trafo dapat mempengaruhi berjalannya suatu pembangunan guna dapat melancarkan pengoperasian arus listrik. CV. Aneka Elektro Medan adalah perusahaan yang bergerak dibidang, kontraktor jasa dan pembangunan yang mengerjakan proyek pembangunan BTS (Base Transceiver Station) Provider Telekomunikasi dalam bidang ketenaga listrikkan. Pengedalian persediaan bahan material yang dilakukan belum maksimal, akibat dari permintaan yang tidak menentu mengakibatkan persedeiaan material berkurang atau pun berlebih sehingga dibutuhkan perhitungan dengan pendekatan MRP (Materail Requirement Planning). Dalam merencanakan bahan material ini digunakan 3 metode Lot Sizing yaitu Economic Order Quantity, Lot for Lot, dan Fixed Period Requirement. Setelah perbadingan ketiga metode tersebut didapat hasil bahwa degan metode Lot for Lot menghasilkan total biaya minimum untuk masing-masing material, dan memerlukan jumlah biaya total persediaan komulatif Rp. 1.498.650.000,-.
OPTIMALISASI PENDISTRIBUSIAN BARANG DENGAN MODEL MIXED INTEGER LINEAR PROGRAMMING PADA PT. LOGISTIK EKSPRESINDO UTAMA Zaharuddin; Rafika Apriani Pratiwi; Uun Novalia Harahap
JISO : Journal of Industrial and Systems Optimization Vol. 7 No. 1 (2024): Juni 2024
Publisher : Universitas Maarif Hasyim Latif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51804/jiso.v7i1.64-73

Abstract

PT. LogistikEkspresindoUtama is a service company that has integration services ranging from land, sea and air Freight Forwarding services, PPJK (Customs Service Management Company), and Transportation Management for Projects, which is supported by a complete selection of land, sea and air transportation fleets specializing in handling cargo that requires special handling both at home and abroad. The company's subjective judgment alone has been used to choose the current route, and the shipping cost has not been considered. As a result, a unique approach is required to solve this issue. Consequently, this research aims to identify a cost-effective route and optimize distribution costs. This study uses the Integer Linear Programming method to optimize the delivery of goods and minimize transportation costs. Based on the data processing results using the Integer Linear Programming method, it can minimize the distance of 604 km or 13.04%; the minimum travel time is 14.9 hours or 12.88%; the minimum total distribution cost is Rp 1,154,650 or 16.47%. PT. Logistik Ekspresindo Utama merupakan salah satu Perusahaan Jasa yang memiliki layanan integrasi mulai dari jasa Freight Forwardingdarat, laut maupun udara, PPJK (Perusahaan Pengurusan Jasa Kepabeanan), Manajemen Transportasi untuk Project, yang didukung oleh pilihan lengkap armada transportasi darat, laut dan udara spesialisasi dalam menangani kargo yang membutuhkan penanganan khusus baik di dalam maupun luar negeri. Penilaian subjektif perusahaan saja yang digunakan untuk memilih rute saat ini, dan biaya pengiriman belum diperhitungkan. Akibatnya, untuk menyelesaikan masalah ini, diperlukan pendekatan yang unik. Oleh karena itu, tujuan penelitian ini adalah untuk mengidentifikasi rute yang hemat biaya dan mengoptimalkan biaya distribusi. Penelitian ini menggunakan metode Integer Linear Programming untuk mengoptimalkan pengiriman barang dan meminimalkan biaya transportasi. Berdasarkan hasil pengolahan data menggunakan metode Integer Linear Programming dapat meminimumkan jarak tempuh sebesar 604 km atau 13,04%, minimum waktu tempuh sebesar 14,9 jam atau 12,88%, minimum total biaya distribusi sebesar Rp. 1.154.650 atau 16,47%.
Mengoptimalkan Produktivitas Kerja di PT SEN Melalui Analisis Kebutuhan Karyawan Menggunakan Metode Quality Function Deployment Evin Hard; Uun Novalia Harahap; Denny Walady Utama
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 2 No 3 (2023): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v2i3.77

Abstract

This research highlights the importance of meeting employee needs to increase work efficiency and effectiveness at PT SEN, a company operating in the oil and gas industry. Using the Quality Function Deployment (QFD) method, this research aims to translate employee desires into technical attributes that management can implement. Through surveys and data collection from 25 respondents, the service attributes desired by employees have been identified, evaluated for validity and reliability, and linked to company performance. The research results show that several attributes, such as laptops with high specifications, comfortable workspaces, and integrated work dashboards, are top priorities for PT SEN employees. Service attribute performance is evaluated through the House of Quality (HOQ) matrix, and target values are set, guiding the improvement and development of necessary facilities and infrastructure. The analysis also leads to identifying unnecessary or less essential attributes of employees. In conclusion, QFD is a practical approach to determining priorities for meeting the needs of PT SEN employees. The analysis results provide significant insight to direct management in improving the work environment and service for employees by focusing on the attributes most prioritized by employee teams.
Optimalisasi Performance Operator Service Sepeda Motor Dengan Menggunakan Metode Work Sampling Pada UMKM Giant Jaya Motor Tri Agus M Panggabean; Uun Novalia Harahap; Denny Walady Utama
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 3 No 1 (2024): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v3i1.91

Abstract

Motorcycles are a convenient mode of transportation for daily activities. The Giant Jaya Motor motorcycle repair shop, a small and medium-sized enterprise (SME), operates in sales, repair services, maintenance, and spare parts supply. Efficient maintenance and repair services are crucial for smooth operations. The workload at the Giant Jaya Motor workshop is very high, and the operators often need more time to rest, leading to decreased performance and wasted time during services. This study aims to determine the standard time and workload of the operators using the Work Sampling method. This method, similar to a stopwatch time study, is classified as direct work observation because the measurement activities are carried out at the actual workplace being studied. The data processing results show that the standard time required to service one motorcycle is 26.34 minutes, with a working time percentage of 89.41%. It is recommended that the Giant Jaya Motor workshop organize a more efficient work schedule to provide sufficient rest time for operators to reduce fatigue and improve performance. Additionally, improving time management and providing training for operators can reduce time waste and increase overall productivity. Implementing more efficient technology or tools can also speed up maintenance and repair processes without compromising service quality.
Co-Authors Denny Walady Utama Evin Hard Rafika Apriani Pratiwi Tri Agus M Panggabean Zaharuddin Zaharuddin