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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.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol. 9 No. 2 (2010): Published in October 2010" : 6 Documents clear
Penentuan Jumlah Kendaraan Transjogja Dengan Metode Simulasi Masrul Indrayana
Jurnal Optimasi Sistem Industri Vol. 9 No. 2 (2010): Published in October 2010
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (621.171 KB) | DOI: 10.25077/josi.v9.n2.p53-58.2010

Abstract

Improving the public service, Yogyakarta city government formally operate a new transportation system "transjogja" The trial results using transjogja produce different responses from the public. Some passengers complained about the time interval between the arrival of a very old bus. Interarrival time of buses at a bus stop is badly affected by the path length and number of stops that serve the fleet. It is also closely related to factor profitable and density / number of passengers in the bus stop / path. It required a study to determine the number of bus fleet for each path without increasing the risk and investment failures. The assessment can be done with the help of simulation methodology. Based on these studies have been done on Route 2B and assistance Arena Software, acquired three service models to choose from a fleet of 4 units per hour with maximum queuing time of 7.6196 minutes, 3 units of the fleet per hour with a maximum queuing time of 10.4605 and 2 units fleet per hour with maximum queuing time of 17.1047.
Perancangan Fixture Proses FreisUntukProduksi Komponen Sambungan Karburator Prasticia Chandra Dewi
Jurnal Optimasi Sistem Industri Vol. 9 No. 2 (2010): Published in October 2010
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.v9.n2.p44-52.2010

Abstract

The tools are designed to assist and simplify the machining process, and increase the number of products that can be manufactured with quality maintained. The tools aredesigned to use in the manufacture of the carburetor connection with the Freis. Freisprocess here to cut the work piece that originally shaped like a rectangle into a rhombus.The tool is made by using the principle of supporting and supported by the use ofclamping. Supporting made with a flat surface so that the entire supporting surface is assumed to touch the entire workpiece. Meanwhile, the use of bolt clamping aims to unifyworkpieces with supporting so that the workpiece can not be separated and do not moveduring the machining process takes place. This is evidenced by the equation forcesgenerated by the clamping, the force generated is positive so that the proper tool to use.With this tool, production time becomes shorter and the resulting product is also more precise so that the quality and quantity of product is assured. Production costs necessaryto complete the carburetor connection is also cheaper than without using tools.
Perancangan Fixture Pada Proses Sekrap Dan Freis Untuk Memproduksi Komponen Poros Idler Muhammad Ikhsan; Raflina Sonya Jayanti; Citra Tri Angelia; Roni Hardian Putra; Frastia Retha
Jurnal Optimasi Sistem Industri Vol. 9 No. 2 (2010): Published in October 2010
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.v9.n2.p59-64.2010

Abstract

Idler shaft is the engine components that are often produced in the automotive field, the shaft serves to continue the effort together with the rotation. Making idler shaft through several machining processes such as lathes, sekrap, and Freis. At this time laporn designed tools to process and Freis sekrap in the production of idler shaft. The design of this tool using the clamping screw. Placed on the front clamping tools for process sekrap. Based on the results obtained, the time spent with the tools and shorter setup times smaller than that obtained without the tools, so the production cost by using the tools is greater than the production costs without the tools in this case the production shaft idler.
Model Transportasi Jalur Laut untuk Distribusi Semen Curah Jenny Andres Yunirman
Jurnal Optimasi Sistem Industri Vol. 9 No. 2 (2010): Published in October 2010
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.v9.n2.p65-74.2010

Abstract

Cement industry as one of economic agents in addition to technology-intensive production requires good planning also requires planning and transportation patterns of distribution of efficient and effective way to market their products. This is the focus of each cement producers, including PT. Semen Padang. Problems of distribution and transport in the PT. Semen Padang today is not having an optimal assignment system for the delivery of bulk cement sea. Distribution of bulk cement transportation model created is one form of the application of linear programming model integers. This model uses a binary 0 or 1 as a decision variable, in this case is the assignment of the ship. The objective function of this model is the minimization of transport costs to meet demand in each of the packing plant. Approach to fuzzy concepts can be applied to accommodate information that is not definite as, the number of requests in each packing plant.
Perancangan Fixture Proses Gurdi untuk Produksi Komponen Brake Pads Suci Rahmawati SY; Vivi Triyolanda; Neta Harimeni; Meutia Syarah
Jurnal Optimasi Sistem Industri Vol. 9 No. 2 (2010): Published in October 2010
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.v9.n2.p75-80.2010

Abstract

Brake pads is used to stop the rapid of vehicle while braking process is done. In making process if brake pads is needed a tool to make a operator work easier and can produce the brake pads component more precision, especially in making a hole process. A tool which is designed in drilling process in production of brake pads component use locator 3-2-1 principt in a placement the locator, using clamping to grip the component, and construction of jig dan fixture that is designed must be suitable with needs of making a hole process this brake pads component. To produce this tool, the cost must be calculated, such as direct cost, indirect cost and fixed cost to cover the 1200 lot sizes of this brake pads component. Based on design of this tool, it can be concluded that a tool which design of the drilling process can give benefit because it can help the operator in their work and it can produce the brake pads component more precision, and the rejected product can be minimized presisi. In addition, the set up time can be decreased and the cost be reduced.
AplikasiRekayasa Nilai Untuk Evaluasi Produk Mesin Compos Mini Produksi Abdul Aziz
Jurnal Optimasi Sistem Industri Vol. 9 No. 2 (2010): Published in October 2010
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.v9.n2.p81-84.2010

Abstract

A product can look like a system, which is something that still has room for consideration of revisions (evaluation). In the evaluation, value engineering is one technique that systematically by using the techniques of identification of the functions required, apply the values and develop alternatives that achieve the best functional balance between cost and performance of a system or product. In compos Mini Machine products, value engineering done to the component cost is quite high (grade A on the ABC classification). Benefit Cost Ratio (BCR) is an important thing that needs to be calculated on the value engineering. The selected alternative for this article is the replacement of roofing material from metal plate to the plastic pulley with cost savings of 55%.

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