Garuda - Garba Rujukan Digital

All

Jurnal Optimasi Sistem Industri

JOSI
Website

Published by Universitas Andalas

ISSN : 20884842 EISSN : 24428795 DOI : -

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.

Arjuna Subject : -

Articles 394 Documents

14 15 16 17 18

Analysis of Inventory Control by Using Economic Order Quantity Model – A Case Study in PT Semen Padang Prima Fithri; Alizar Hasan; Fadhita Maisa Asri
Jurnal Optimasi Sistem Industri Vol. 18 No. 2 (2019): Published October 2019
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Inventory control is a very important issue. It is because the amount of inventory will determine or affect the smoothness of the production process as well as the effectiveness and efficiency of the company. PT Semen Padang is a manufacturing company that produces 10,400,000 tons of cement per year. The achievement of the cement production target at this company depends on the availability of raw materials needed in the cement production process itself. Gypsum is an additional material of the cement production process which is very important because it is a raw material that must exist in the process of making cement. So, if the inventory of gypsum cannot meet the needs of production, then the production process of cement making will be disrupted. PT Semen Padang is using the Min-Max method for inventory control. But the costs are quite high. The cost of inventory can be minimized by using another method such as EOQ (Economic Order Quantity). The conclusions of this research are in 2016 by using EOQ method, the optimal order quantity is 32,073 ton per order, and the frequency is 9 times in a year with total cost Rp. 4,757,673,813.48, and in 2017, the optimal order quantity is 34,856 tons per order and the frequency is 9 times in a year with total cost Rp. 9,694,805,608.36.

Identifikasi Risiko Kesehatan dan Keselamatan Kerja pada Pekerja Pengumpul Sampah Manual di Jakarta Selatan Dino Rimantho
Jurnal Optimasi Sistem Industri Vol. 14 No. 1 (2015): Published in April 2015
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Waste collection is one of the activities that should be performed on the waste management process. This activity can pose a potentially high risk given the dangers that may arise while direct contact with the garbage and activities conducted. This study aims to identify potential risks to the health and safety of workers garbage collector. The survey uses a structured questionnaire distributed to 25 the refuse collector randomly selected in Srengseng SawahJagakarsa, South Jakarta. Descriptive statistics were used to analyze the data collected. The garbage collectors who agreed on the use of personal protective equipment at work is approximately 64% or around 16 respondents. Musculoskeletal disorders suffered by respondents is around 19 people or roughly 76%. The Respondents who suffered puncture wounds as a result of did not use gloves were 23 respondents or approximately 92%. Wrist and lower back are the most common musculoskeletal disorder that affects approximately 23 respondents. Generally, workers require personal protective equipment in order to prevent and reduce accidents. Improvement measures should be always be done such as healthy behavior, use of personal protective equipment and the development of working methods based on ergonomic principles.

Analisis Penerapan Lean Production Process untuk Mengurangi Lead Time Process Perawatan Engine (Studi Kasus PT.GMF AEROASIA) Wahyu Adrianto; Muhammad Kholil
Jurnal Optimasi Sistem Industri Vol. 14 No. 2 (2015): Published in October 2015
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Engine maintenance strives to always improve its service excellence with tools such as gate system where the system is expected to realize the lead time for 60days. In the implementation of the gate system is still not able to meet the expected target. During maintenance or overhaul the engine is still encountered waste or waste that causes the target cannot be met. Lean Manufacturing is an approach that aims to minimize waste that occurs in the process flow.Understanding the conditions of the process described in Value Stream Mapping for further elaborate activities that have the value-added and non-value added.Through seven waste concept, then be weighted to determine the most dominant type of waste.From the data processing is obtained that through the Value Stream Mapping is known gate 1 and gate 3 is the point that there are many wastes. Weighting and ranking of seven existing waste in the process of the activity obtained results in the form of a waste critical sequence of seven existing waste. Highest weights on the type of waste waiting with a weight of 0.38. Results of Root Cause Analysis in mind that the root cause of waste waiting for that data is maintained, the lack of attention to people development, There are still bugs in the system and miscommunication.

Model Optimasi Perancangan Jaringan Rantai Pasok Biomassa dari Tandan Kosong Kelapa Sawit di Sumatera Barat Febriza Imansuri; Rika Ampuh Hadiguna; Feri Afrinaldi
Jurnal Optimasi Sistem Industri Vol. 18 No. 1 (2019): Published in May 2019
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

West Sumatra has great potential in developing biomass based on palm oil waste. This is because the largest plantation production in West Sumatra comes from the oil palm commodity of 1,082,820 tons in 2014. Therefore, it is necessary to design a model of supply chain biomass network for the distribution of Empty Fruit Bunches (EFB) from CPO factory suppliers located in West Sumatra and distributed to Depot Pertamina Teluk Kabung. Stages performed in the implementation of this study began with a preliminary study to determine the potential of biomass in West Sumatra. Furthermore, the design of chain supply chain optimization model by identifying supply chain activity, knowing the characteristics of supply chain system and make the formulation of mathematical model. The design of supply chain biomass from Empty Fruit Bunches (EFB) in West Sumatera, starting from raw material Tandan Kosong Kelapa Sawit (TKKS) sourced from Crude Palm Oil (CPO) factory in West Pasaman Regency and surrounding. This is because Pasaman Barat Regency is the central agroindustry of oil palm plantation which has 17 most palm oil factories in West Sumatra. The potential of bioethanol derived from CPO waste can be done by establishing bioethanol plant located with the same CPO factory so that it is adjacent to the source of the raw material. The result of the mathematical model mixed integer linear programming is placement of bioethanol plant location at PT Pasaman Marama Sejahtera with medium scale and total cost of IDR 251,563,700,000.00.

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

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.

Pembuatan Knowledge Management pada External Cylindrical Grinding Ikhwan Arief; Muhammad Arieaman Fikri
Jurnal Optimasi Sistem Industri Vol. 15 No. 1 (2016): Published in March 2016
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Knowledge management is a process that helps an organization or company in identifying, selecting, preparing, distributing and sending important information and expertise part of an organization or a company to change the behavior or attitude that is not in place. Grinding processes are usually based on the experiences of people who have are experts in their work (tacit knowledge) that will be collected and converted into explicit knowledge so that the information can be maintained and easily accessible.The design began by analyzing the external cylindrical grinding systems and translate them into Unified Modelling Language (UML) which was followed by the design of database and computer software, and test the software. The application software is web-based and can be accessed by multiple users. The application will help the operator in determining parameters with given option of parameter recommendation. The system gives recommendations based on the tacit knowledge that has been gathered into explicit knowledge. The output of the application is a list of selected parameters and report cases. Report data in the case will be used to set up the machine.

Model Penentuan Ukuran Batch Produksi dan Bufferstock untuk Sistem Produksi Mengalami Penurunan Kinerja dengan Mempertimbangkan Perubahan Order Awal Ivan D Wangsa
Jurnal Optimasi Sistem Industri Vol. 14 No. 2 (2015): Published in October 2015
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

This study develops a model that involves information the preliminary order. At first, the manufacturer provides the preliminary order for the coming week (five days) varies from day to day and is received on Friday. Change in the preliminary order for a given day is announced one day before and this is viewed as it occurs randomly. Moreover, production systems experience performance degradation (deterioration). Status of the production process shifts from in control to out of control that is identified by the last inspection. Inspection is done by sampling. At the time of the status of out of control the probability of producing non-conforming system component that is charged to the restoration cost and warranty costs.This paper is looking for a solution for determining the production batch size and the buffer stock to reduce total cost. The decision variables are production run period (T) and buffer factor (m). Having obtained the variables T and m, then the variable production batch size (QT) and the buffer stock (BT) can be determined sequentially. Heuristic methods used are Silver-Meal (SM) and Least Unit Cost (LUC) to obtain a solution for each model. Numerical examples are given to demonstrate the performance of the models. From the numerical results, it appears that LUC method is better than SM method.

Sistem Pengukuran Kinerja Supply Chain Management Pada Proyek Konstruksi Demi Ramadian; Elita Amrina
Jurnal Optimasi Sistem Industri Vol. 18 No. 1 (2019): Published in May 2019
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Construction project implementation process is often found inefficiency and problems at every stage of the construction process. Inefficiencies are caused because construction projects have high levels of fragmentation. The high level of fragmentation cannot be separated from the complexity and many work items on construction projects. To reduce the problem of inefficiencies in the implementation of construction projects required good supply chain management or better known as supply chain management (SCM) on construction projects. Therefore it is necessary to study the management of SCM in the construction project to reduce the inefficiency that occurred. SCM management of construction projects is done by designing SCM performance measurement systems in construction projects. This performance measurement system produces indicators that are combined with the Supply Chain Operation Reference (SCOR) method. So it helps in performing SCM performance measurement on construction projects. From the design results, obtained 14 SCM performance indicators on construction projects. The performance indicators are then used to perform SCM performance measurement of cement plant construction projects. From the measurement results obtained SCM performance value of 41 from a scale of 100. This shows the performance of SCM on construction projects for the construction of the cement plant is at a marginal level.

Pengendalian Kualitas Part Trim Rear Quarter Right APV Arena dengan Menggunakan Metode Six Sigma di PT. Suzuki Indomobil Motor Fatimah Zahara
Jurnal Optimasi Sistem Industri Vol. 13 No. 1 (2014): Published in April 2014
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Quality is an important aspect in enhancing the competitiveness of the product. Quality's role is to give satisfaction to the customer and be able to compete with similar products. During of the production process there is a chance that the products are not produced in established standards. Products that not suitable with the specifications is a defect that would cause harm to the company. Trim Rear Quarter Right is a component of the APV Arena car which is each production of Trim Rear Quarter Right there are at least one or more defective products. This of course would lead to losses for the company. The method used in this case study is the six sigma method because this method has been proven effective. Defect in Trim Rear Quarter Right caused by five factors that is negligence of the operator in set up the machine, the age of the machine , the quality of the materials, the application of the method is not maximized and noisy environments. The set up process of injection molding machine is the most influential in causing the defect product with RPN (Risk Priority Number) value is 256.

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

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

Page 16 of 40 | Total Record : 394

14 15 16 17 18

Filter by Year

2010 2025

Filter By Issues

All Issue Vol. 24 No. 2 (2025): Published in December 2025 Vol. 24 No. 1 (2025): Published in June 2025 Vol. 23 No. 2 (2024): Published in January 2025 (published late, please read our note) Vol. 23 No. 1 (2024): Published in July 2024 Vol. 22 No. 2 (2023): Published in December 2023 Vol. 22 No. 1 (2023): Published in May 2023 Vol. 21 No. 2 (2022): Published in October 2022 Vol. 21 No. 2 (2022): Published in November 2022 Vol. 21 No. 1 (2022): Published in April 2022 Vol. 21 No. 1 (2022): Published in May 2022 Vol. 20 No. 2 (2021): Published in November 2021 Vol. 20 No. 2 (2021): Published in October 2021 Vol. 20 No. 1 (2021): Published in April 2021 Vol. 20 No. 1 (2021): Published in May 2021 Vol. 19 No. 2 (2020): Published in November 2020 Vol. 19 No. 2 (2020): Published in October 2020 Vol. 19 No. 1 (2020): Published in June 2020 Vol. 19 No. 1 (2020): Published in April 2020 Vol. 18 No. 2 (2019): Published in October 2019 Vol. 18 No. 2 (2019): Published October 2019 Vol. 18 No. 1 (2019): Published in May 2019 Vol. 18 No. 1 (2019): Published April 2019 Vol. 17 No. 2 (2018): Published in October 2018 Vol. 17 No. 1 (2018): Published in April 2018 Vol. 16 No. 2 (2017): Published in October 2017 Vol. 16 No. 1 (2017): The Improved JOSI is Published in May 2017 Vol. 16 No. 1 (2017): Published in May 2017 Vol. 15 No. 2 (2016): Published in November 2016 Vol. 15 No. 1 (2016): Published in March 2016 Vol. 14 No. 2 (2015): Published in 1st October 2015 Vol. 14 No. 2 (2015): Published in October 2015 Vol. 14 No. 1 (2015): Published in April 2015 Vol. 13 No. 2 (2014): Published in 1st October 2014 Vol. 13 No. 2 (2014): Published in October 2014 Vol. 13 No. 1 (2014): Published in April 2014 Vol. 12 No. 2 (2013): Published in 1st October 2013 Vol. 12 No. 1 (2013): Published in 1st April 2013 Vol. 12 No. 2 (2013): Published in October 2013 Vol. 12 No. 1 (2013): Published in April 2013 Vol. 11 No. 2 (2012): Published in 1st October 2012 Vol. 11 No. 1 (2012): Published in 1st April 2012 Vol. 11 No. 2 (2012): Published in October 2012 Vol. 11 No. 1 (2012): Published in April 2012 Vol. 10 No. 2 (2011): Published in 1st October 2011 Vol. 10 No. 1 (2011): Published in 1st April 2011 Vol. 10 No. 2 (2011): Published in October 2011 Vol. 10 No. 1 (2011): Published in April 2011 Vol. 9 No. 2 (2010): Published in 1st October 2010 Vol. 9 No. 1 (2010): Published in 1st April 2010 Vol. 9 No. 2 (2010): Published in October 2010 Vol. 9 No. 1 (2010): Published in April 2010 More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Rika Ampuh Hadiguna

Contact Email
hadiguna@ft.unand.ac.id

Phone
-

Journal Mail Official
hadiguna@ft.unand.ac.id

Editorial Address
-

Location
Kota padang,

Sumatera barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Rika Ampuh Hadiguna

Contact Email hadiguna@ft.unand.ac.id

Phone -

Journal Mail Official hadiguna@ft.unand.ac.id

Editorial Address -

Location Kota padang, Sumatera barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Rika Ampuh Hadiguna

Contact Email
hadiguna@ft.unand.ac.id

Phone
-

Journal Mail Official
hadiguna@ft.unand.ac.id

Editorial Address
-

Location
Kota padang,

Sumatera barat

INDONESIA