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Jurnal Optimasi Sistem Industri
Published by Universitas Andalas
ISSN : 20884842     EISSN : 24428795     DOI : -
Core Subject : Science, Engineering,
Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Jurnal Optimasi Sistem Industri (JOSI) is a peer-reviewed journal that is published periodically (April and October) by the Department of Industrial Engineering, Faculty of Engineering, Universitas Andalas, Padang.
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Articles 7 Documents
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Search results for , issue "Vol. 12 No. 2 (2013): Published in October 2013" : 7 Documents clear
Integrasi Frame Work Risk and Insurance Management Society (RIMS) dalam Analisis Kematangan Implementasi Manajemen Risiko (Studi Kasus: PLTA Maninjau) Taufik; Ahmad Fauzan
Jurnal Optimasi Sistem Industri Vol. 12 No. 2 (2013): Published in October 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (740.476 KB) | DOI: 10.25077/josi.v12.n2.p411-419.2013

Abstract

Indonesia electrical energy consumption growth that reached 9.2% per year requires every plant to always pursue consistent and sustainable improvement to be able to cope with the growth. Maninjau Hydropower is one of the assets of strategic energy resources to meet the electrical energy supply, especially for the southern Sumatera region. Risk management in Maninjau hydropower take place without any standard of measurement standards, so management and risk management actors do not have an overview and guide to improve the performance of the risk management activities. In this study, a standard measure used is to measure the level of maturity of the risk management implementation using the framework of the Risk and Insurance Management Society (RIMS) for Enterprise Risk Management (ERM). Measurements carried out for the realization of the value and the expected value of risk management implementation in Maninjau hydropower, as well as designing the evaluation chart implementation of risk management by integrating Key Risk Indicators (KRI) from the expected value. Based on the results of the measurements made, it was found that the actual implementation of risk management in Maninjau hydropower located on the third level (repeatable), while the implementation of the expectation value is found to be at the highest level (leadership), and the percentage achieving overall expectation value has reached 62%. The draft also raises the risk evaluation chart 15 Key Risk Indicators to be achieved by Maninjau hydropower to achieve the expected value at the leadership level.
Perancangan Sistem Informasi pada Bagian Gudang PT. PN VI Unit Usaha Ophir Dina Rahmayanti; Ringgo Afrinando
Jurnal Optimasi Sistem Industri Vol. 12 No. 2 (2013): Published in October 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (771.895 KB) | DOI: 10.25077/josi.v12.n2.p420-426.2013

Abstract

Sistem Informasi adalah sistem buatan manusia yang terdiri dari komponen-komponen dalam organisasi untuk dapat menyajikan informasi . Sebuah sistem informasi yang baik dapat meningkatkan kinerja dari semua kegiatan dalam perusahaan yang didukung oleh data yang akurat dan lebih aman , sehingga semua kegiatan dapat berjalan lebih efektif. PTPN 6 Satuan Usaha Ophir adalah salah satu perusahaan yang bekerja di industri manufaktur pengolahan minyak sawit . Salah satu bagian dari perusahaan ini yang penting adalah penyimpanan . Hal ini penting di gudang adalah pencatatan data barang yang ada . Dalam bagian ini ada sistem yang kurang baik dimana pencatatan data secara manual sehingga dapat mempengaruhi munculnya kesalahan . Oleh karena itu, dibutuhkan perancangan suatu sistem informasi item data sehingga waktu yang dibutuhkan untuk mencari data tidak panjang dan menyederhanakan aliran informasi. Perancangan sistem informasi ini melalui beberapa tahapan dimulai dengan survei pada perusahaan , masalah identifikasi , analisis sistem , desain model menggunakan UML dan akhirnya dengan merancang sistem informasi dengan menggunakan database dan aplikasi dengan PHP – MySQL
Perencanaan & Penjadwalan Distribusi Pakaian Jadi dengan Metode Distribution Resource Planning Syarif Hidayat; Nunung Nurhasanah; Anela Septieni Zulkifli
Jurnal Optimasi Sistem Industri Vol. 12 No. 2 (2013): Published in October 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v12.n2.p343-351.2013

Abstract

The tight competition in the business world nowadays, especially after the signing of AFTA and ACFTA agreements calls for an increased competitiveness of domestic industries especially the garment industries. High quality products, competitive prices and the availability of products in the ever changing fashion market are the key factors to win the competition.Distribution is one of the important activities as it is directly related to fulfilling customer needs. Right products must be available in the right quantity and right condition and at the right time. Product availability in the market should be strong to prevent lost sales. However, a high service level means high inventory costs. Companies need tool to manage their inventory.This research proposes the planning and scheduling of distribution at XYZ using the Distribution Resource Planning (DRP) for product X102 for five selected distributors (Surabaya, Bogor, Pekalongan, Sidoarjo and Probolinggo) using the Exponential Comparison Method (ECM). The DRP results show that XYZ must issue production orders in the 3rd, 5th, 7th periods for X102 in the amount of 150 units. In addition to the DRP, to help the company controls the inventory level, the researchers developed a model of Excess Stock Management system using Dev C++.
Model Pemilihan Pemasok Bahan Baku Kelapa Parut Kering dengan Metode AHP (Studi Kasus PT. Kokonako Indonesia) Siti Wardah
Jurnal Optimasi Sistem Industri Vol. 12 No. 2 (2013): Published in October 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v12.n2.p352-357.2013

Abstract

The selection of suppliers is a strategic activity, especially if the supplier will supply critical items and/ or will be used in the long term. Many factors need to be considered in the selection of suppliers. PT. Kokonako Indonesia is one of the companies of the Group are located in Medan Capella. There are weaknesses in the selection of suppliers conducted by PT. Indonesia Kokonako the decision maker for the purchase of raw materials which are not within specification diameter ≥ 10 cm. Therefore, this study aims to perform the selection of suppliers with the consideration of a more comprehensive and objective as needed. The first stage is carried out in order to represent the actual circumstances is to identify the criteria, sub-criteria, and alternatives that will be used in the selection of suppliers. There are 6 criteria, 13 subcriteria, and 4 alternatives used in the selection of suppliers for raw materials dried grated coconut. The second stage, the stage determines the method for the selection of suppliers. Based on the identification there are no dependencies between sub criteria. Therefore, the exact method used to determine the priority of suppliers to be selected is the method of analytical hierarchy process (AHP). By using the AHP, the priorities selected suppliers for raw materials are dried grated coconut and weighs 0.363 Tempuling District as a top priority. Followed by Sub Tembilahan with weights 0.268, third priority is the District Enoch with weights 0.213, and the last is the Sub Trunk Tuaka and weighs 0,157.
Audit Efisiensi pada Proses Produksi Minuman Ringan di PT Coca Cola Bottling Indonesia (CCBI) Central Sumatera Alizar Hasan; Morena Tantilia
Jurnal Optimasi Sistem Industri Vol. 12 No. 2 (2013): Published in October 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v12.n2.p358-368.2013

Abstract

Efisiensi menjadi salah satu faktor pencapaian produktivitas suatu perusahaan, baik dari segi bahan baku, kualitas, peralatan, serta kepedulian terhadap lingkungan. Sebagai perusahaan satu-satunya yang menjalankan proses pembotolan dan distribusi produk minuman ringan ternama di bagian Sumatera Tengah, PT Coca Cola Bottling Indonesia Central Sumatera selalu berupaya meningkatkan produktivitas produksi, sehingga kinerja perusahaan dapat terus dipertahankan. Melalui penelitian ini, dilakukan audit dan evaluasi terhadap kinerja efisiensi proses produksi minuman ringan di PT Coca Cola Bottling Indonesia Central Sumatera dengan tahapan melakukan pengukuran terhadap efisiensi proses produksi dengan menggunakan 12 indikator Barbiroli secara teknis dan ekonomis. Selain itu, juga dilakukan penentuan status efisiensi proses produksi berdasarkan penilaian pakar secara kualitatif. Sebagai upaya peningkatan efisiensi, direkomendasikan beberapa alternatif perbaikan melalui penentuan prioritas dengan menggunakan Analytical Hierarchy Process.Hasil penelitian menjelaskan bahwa efisiensi teknis proses produksi minuman ringan Frestea Jasmine adalah sebesar 91.58 % yang digolongkan pada tingkatan tinggi sedangkan efisiensi ekonomis adalah sebesar 24.33 % yang digolongkan pada tingkatan sedang. Namun, berdasarkan penilaian tiga orang pakar secara kualitatif, status tingkat efisiensi proses produksi secara teknis berada pada tingkat sedang (medium) dan secara ekonomis berada pada tingkat rendah. Pemilihan alternatif perbaikan dengan Analytical Hierarchy Process menunjukkan bahwa prioritas perbaikan untuk peningkatan efisiensi adalah memperbaiki sistem perawatan mesin produksi dengan bobot 0.476, memperbaiki metode inspeksi proses pembotolan produk dengan bobot 0.293, dan memaksimalkan penggunaan bahan baku produksi dengan bobot 0.231. Dengan demikian, perbaikan terhadap sistem perawatan mesin produksi diharapkan mampu meningkatkan efisiensi proses produksi PT Coca Cola Bottling Indonesia, khususnya untuk minuman jenis Frestea Jasmine, karena penanganan sistem perawatan mesin yang baik berkaitan dengan optimalisasi penggunaan bahan baku, kapasitas produksi, kualitas produk yang dihasilkan, serta biaya produksi.
Penjadwalan Mesin dengan Menggunakan Algoritma Pembangkitan Jadwal Aktif dan Algoritma Penjadwalan Non-Delay untuk Produk Hydrotiller dan Hammermil pada CV. Cherry Sarana Agro Prima Fithri; Fitri Ramawinta
Jurnal Optimasi Sistem Industri Vol. 12 No. 2 (2013): Published in October 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v12.n2.p377-399.2013

Abstract

Fulfillment of all demands of consumers who come to the product is one thing that always wanted to be achieved by a company. These requests are not independent of the company's ability to manufacture certain products. CV Cherry Sarana Agro manufactures a wide range of agricultural equipment, one of which is the product hydrotiller and hammermil. Demand for both products are always in large numbers for each period, however, the company could not meet the entire demand. One of the main factors that led this small company's production capacity for these two products is not optimal scheduling of machines made by companies, causing many to be a queue on a particular machine so that the total process operating time becomes very large. Scheduling method is used to optimize the scheduling of machines working on the report of this practice is actively scheduling method and the method of non-delay scheduling. The data needed to perform scheduling with both of these methods is the data used machines, data processing operations and data processing time of operation. With these three data, can be compared to the actual scheduling done by the company with the scheduling is done using active scheduling method and the method of non-delay scheduling. The most optimal scheduling is obtained after comparing the three methods used are scheduling using the non-delay scheduling. This method was chosen because the resulting make span is much smaller than the two other methods. This method is well applied in the company because in addition to reducing the total processing time, can also increase production capacity, so that all requests can be met.
Perbaikan Rancangan Kruk Ketiak untuk Penderita Cedera dan Cacat Kaki Alfadhlani; Yumi Meuthia; Dolly Filius Valent
Jurnal Optimasi Sistem Industri Vol. 12 No. 2 (2013): Published in October 2013
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v12.n2.p400-410.2013

Abstract

Kruk merupakan tongkat/alat bantu berjalan untuk orang yang memiliki keterbatasan fisik karena cacat atau cedera, biasanya digunakan secara berpasangan untuk mengatur keseimbangan tubuh saat berjalan. Kruk biasanya terdiri dari dua jenis yaitu kruk ketiak (Axillary Crutch) dan kruk lengan bawah (Forearm Crutch). Kruk ketiak pada umumnya terbuat dari aluminium karena berat jenisnya yang relatif ringan, namun memiliki kekuatan mekanik yang relatif rendah, sehingga pada beberapa kasus kruk aluminium mengalami bengkok saat digunakan. Kruk ketiak yang diusulkan oleh [1] dan [2] kurang praktis untuk dibawa, penutup kruk yang licin dan mudah rusak, serta ketinggiannya yang tidak mudah diatur sesuai keinginan. Pada makalah ini dilakukan studi untuk mengusulkan alternatif material pengganti yang lebih kuat dan sekaligus mengatasi masalah kekurangan kruk yang diusulkan oleh peneliti sebelumnya. Material yang dipertimbangkan dalam kajian adalah aluminium, baja karbon, dan stainless steel. Material terpilih untuk diusulkan sebagai material pengganti adalah stainless steel, penggunaan material ini dapat mereduksi bobot kruk sebanyak 28,6% dari 1,75 kg menjadi 1,25 kg. Agar kruk praktis dibawa, diusulkan sistem geser dengan tiga komponen penyusun utama yaitu tiang penyesuai jangkauan, tiang utama dan tiang penyesuai ketinggian, dengan sistem ini kruk memiliki panjang yang bisa disesuaikan yaitu panjang minimal 100 cm dan panjang maksimal 150 cm. Tiang utama kruk dibagi menjadi dua bagian, panjang masing-masing tiang utama adalah 50 cm dan 45 cm sehingga lebih mudah dilipat untuk disimpan dan dibawa. Penutup ujung kruk menggunakan karet agar tidak licin, karet tersebut dimasukkan ke dalam pipa tiang utama sehigga lebih tahan terhadap tekanan. Pegangan kruk dirancang dengan kemiringan yang bisa disesuaikan, rasio penyesuaian kemiringan yaitu 14,4o agar posisi tangan dan pergelangan tangan lebih baik dan nyaman saat penggunaan, tetapi derajat kemiringan kruk rancangan ini masih lebih besar 2,4o jika dibandingkan dengan kemiringan yang ergonomis yaitu sebesar 12o.

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