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Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri

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Published by Universitas Kristen Petra Surabaya

ISSN : 14112485 EISSN : 20877439 DOI : -

Core Subject : Engineering,

Industrial & Manufacturing Engineering

Jurnal Teknik Industri aims to: Promote a comprehensive approach to the application of industrial engineering in industries as well as incorporating viewpoints of different disciplines in industrial engineering. Strengthen academic exchange with other institutions. Encourage scientist, practicing engineers, and others to conduct research and other similar activities.

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Articles 412 Documents

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OPTIMASI PRODUKSI DENGAN METODE RESPONSE SURFACE Studi Kasus pada Perusahaan Injection Moulding Jani Rahardjo; Rosalinawati Iman
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 4 No. 1 (2002): JUNE 2002
Publisher : Institute of Research and Community Outreach - Petra Christian University

In this article , response surface method is used to determine optimum setting for machine in order to optimize the production in injection moulding compan, which produces goods from plastic that has a large amount of defect. According to pareto chart, the largest defect is a hole defect. It is caused by no suitable setting for inject pressure, inject timer, and temperature. In order to solve the problem, it used 3k experiment design. The result show that the optimum setting are 55Mpa for inject pressure, 4.2s for inject timer, and 224o C for temperature with decreasing of defective 7.3%. Abstract in Bahasa Indonesia : Dalam artikel ini, metode response surface digunakan untuk menentukan titik optimal dari setting mesin di perusahaan injection moulding, sehingga didapatkan jumlah produksi yang optimal. Selama ini perusahaan memproduksi produk yang terbuat dari plastik dengan tingkat kecacatan yang cukup besar. Karena itu, perusahaan berusaha mengurangi tingkat kecacatan yang terjadi. Berdasarkan diagram pareto, tingkat kecacatan terbesar adalah cacat lubang. Untuk menyelesaikan penyebab kecacatan tersebut dilakukan suatu perancangan eksperimen yaitu dengan rancangan 3k. Penyebab kecacatan adalah inject pressure, inject timer, temperatur. Pada saat inject pressure 55 Mpa, inject timer 4,2s dan temperatur 224o C menghasilkan kondisi yang optimal sehingga tingkat kecacatan turun sebesar 7.3 %. Kata kunci: response surface, titik optimal setting, tingkat kecacatan.

PENENTUAN KONDISI PENGOLAHAN DAN PENYAJIAN BUMBU RAWON INSTAN BUBUK DENGAN METODE TAGUCHI Julianingsih Julianingsih; Febrina Prasetyo
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 5 No. 2 (2003): DECEMBER 2003
Publisher : Institute of Research and Community Outreach - Petra Christian University

The purpose of this research is to define the preference of panelists in instant rawon powder processing and serving by using Taguchi Method. This research used the prefered rawon recipe. The experiment was done in eight factors of taste, color and odor. The Taguchi method is used as an experimental design method based on Orthogonal Arrays. The prefered instant rawon powder is determined by using the organoleptic test to inexpert panelists. Abstract in Bahasa Indonesia : Penelitian ini bertujuan untuk menentukan kondisi pengolahan dan penyajian bumbu rawon instan bubuk yang disukai oleh masyarakat. Penelitian dilakukan pada resep rawon yang paling disukai masyarakat dengan delapan faktor yang mempengaruhi rasa, warna dan bau bumbu rawon instan bubuk. Metode Taguchi dipergunakan sebagai metode perancangan eksperimen berdasarkan Orthogonal Arrays. Untuk mengetahui kesukaan masyarakat terhadap bumbu rawon instan bubuk ini dilakukan uji organoleptik oleh sejumlah panelis tidak terlatih. Kata-kunci: Metode Taguchi, Uji Organoleptik.

Pemodelan Time Series Multivariat secara Automatis Siana Halim; Arif Chandra
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 13 No. 1 (2011): JUNE 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

This research aims at establishing model of multivariate time series by means of econometric instruments. Four instruments in use are vector auto regressive (VAR), structural vector auto regressive (SVAR), vector error correction model (VECM), and structural vector error correction (SVEC). VAR and VECM are employed to estimate and construct models and, subsequently, predict the future values of an object. SVAR and SVEC serve to analyze innovative structures of a model. VAR and SVAR can be implemented only to stationary data whilst VECM and SVEC can be applied to non-stationary inputs. The identification and estimation of the model in this research are specifically designed by R software. Based on this software, all the aforestated models are conclusively able to identify dynamic relationship of endogenous variabel in a model well.

Minimalisasi Kekurangan Material melalui Implementasi Quality Control Circle Togar W. S. Panjaitan; Debora A. Y. A.; Marissa Yessicha
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 13 No. 2 (2011): DECEMBER 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

The revolution of traditional quality management concept into total quality management (TQM) inspired industry for establishing and implementing quality control circle (QCC). Before starting a project as the implementation of the QCC, the training was held for supporting the knowledge of the QCC team. As the pilot project of the QCC, this research will try to minimize the percentage of the lack material in the production process of 8340 type by working together with the QCC team. The result of QCC implementation could reach the target set by the team, the percentage of the lack material reached less than 3%. The percentage of the lack material kontaktarm reduced from 3.09% to 0.00%, flachdrahtspule reduced from 9.20% to 0.40%, and niet reduced from 7.71% to 2.73%. Besides, the implementation of QCC also resulted in positive impact for all the members of the team about the benefits and experiences gained.

PERBANDINGAN METODE JUNBIKI KANBAN CYCLIC DITINJAU DARI JIT DAN SUMBER DAYA Studi Kasus pada Perusahaan Otomotif Ignatius Eri; Helena J. Kristina
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 7 No. 2 (2005): DECEMBER 2005
Publisher : Institute of Research and Community Outreach - Petra Christian University

The research has done at an automotive company. The intention of this research are to knowing the effect and also the advantages and disadvantages of Junbiki Method which is a new method in this company in increasing JIT(Just in Time), use of resources, and make comparison between Junbiki method and Kanban System. The research is done by comparing the Kanban system with the Junbiki method on the parts i.e. seat part and door trim. The measured variables are those in the period of September as the basic period, continued with the periods of October, November, and December 2004. The productivities to be observed are those of energy and labor consumption. The research proves that the Junbiki method is better than the Kanban system. It is shown from the increase of JIT performance during four periods at the average of 73% and least of resources. By using the Junbiki method, the wastage in the use of energy, labor, movement, and process can be eliminated. Abstract in Bahasa Indonesia : Penelitian ini dilakukan pada perusahaan yang bergerak di bidang otomotif. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh serta kelemahan dan kelebihan metode Junbiki yang merupakan metode baru yang diterapkan perusahaan terhadap peningkatan JIT (Just in Time) dan penggunaan sumber daya, dan membuat perbandingan antara metode Junbiki dan sistem Kanban. Penelitian ini dilakukan dengan membandingkan sistem Kanban dengan metode Junbiki pada part yang memenuhi syarat, yaitu part seat dan door trim. Variable yang diukur adalah pada periode September sebagai periode dasar, dilanjutkan dengan periode Oktober, November, dan Desember 2004. Pemakaian sumber daya yang ingin diteliti adalah pemakaian energi dan tenaga kerja. Hasil penelitian membuktikan bahwa metode Junbiki lebih baik daripada sistem Kanban. Hal ini terlihat dari peningkatan perfoma JIT selama empat periode rata-rata sebesar 73% dan kebutuhan sumber daya yang lebih sedikit. Dengan metode Junbiki, pemborosan dalam pemakaian energi, tenaga kerja, gerakan, dan proses dapat dihilangkan. Kata kunci: Junbiki, Kanban, JIT, Sumber Daya.

Dampak Kompetensi Key user ERP terhadap Kinerja Inovasi dan Kinerja Kualitas Guna Meningkatkan Kinerja Organisasi Zeplin Jiwa Husada Tarigan; Sautma Roni Basana
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 15 No. 1 (2013): JUNE 2013
Publisher : Institute of Research and Community Outreach - Petra Christian University

Implementation EntERPrise Resource Planning (ERP) requires user key to have a reliable competency especially in personnel management. For this study, a survey was conducted using interviews technique and distributing questionnaires to 80 manufacturing industry practitioners, with response rate 88.75%. Additionally, the data analysis was done using PLS with Jawa Web Start program. The findings of the research are: There is no influence between knowledge and skill in quality performance and innovation performance in improving the performance of the company while implementing the technology of ERP. Personality Characteristics affect the increase of quality performance and innovation in the improvement of the company's performance while implementing ERP technology. Demonstrable Performance effect the increase in the quality of performance and innovation in improving the company's performance while implementing ERP technology. Innovation performance and Quality performance together have a direct impact on enhancing the performance of companies while implementing ERP technology.

Model Integrasi Penjadwalan Produksi Batch dan Penjadwalan Perawatan dengan Kendala Due Date Zahedi .; TMA Ari Samadhi; Suprayogi .; Abdul Hakim Halim
Jurnal Teknik Industri Vol. 16 No. 2 (2014): DECEMBER 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

This paper discusses the integration model of batch production and preventive maintenance scheduling on a single machine producing an item to be delivered at a common due date. The machine is a deteriorating machine that requires preventive maintenance to ensure the availability of the machine at a desired service level. Decision variables of the model are the number of preventive maintenances, the schedule, length of production runs, as well as the number of batches, batch sizes and the production schedule of the resulting batches for each production run. The objective function of the model is to minimize the total cost consisting of inventory costs during parts processing, setup cost and cost of preventive maintenance. The results show three important points: First, the sequence of optimal batches always follows the SPT (short processing time). Second, variation of preventive maintenance unit cost does not influence the sequence of batches. Third, the first production run length from production starting time is smaller than the next production run length and this pattern continues until the due date. When in process inventory unit cost is increased, the pattern will continue until a specified cost limit, and beyond the limit the pattern will change to be the opposite pattern.

Pengembangan ModelVariable Review Period dengan Mempertimbangkan Order Crossover Tanti Octavia; , Felecia
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 16 No. 1 (2014): JUNE 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

In this paper, we propose a variable review period model using dynamic programming for order crossover problem. The proposed model is compared to an existing variable review period model and classical review period in terms of minimum inventory cost. The simulation is applied with six scenarios and sensitivity analysis is also done. The results show a variable review period model performs smaller inventory cost for small variation of lead-time compared to classical review period model. On the other hand, classical periodic review model is sensitive with the changes in the variation of demand distribution and service level. The proposed model gives the better solution compared to variable review period model for the six scenarios with the inventory cost saving as 11-42%. The sensitivity analysis for a variable review period model and a proposed model are applied and compared. From sensitivity analysis, it can be concluded variable review period with dynamic programming gives the best solution in terms of the changes of holding cost and ordering cost. It is also shown the smaller holding cost, the smaller percentage of inventory cost savings (between variable review model and the proposed model).

Teknik Relaksasi Lagrange untuk Penjadwalan Pekerjaan Majemuk dengan Penggunaan Sumberdaya Simultan Suprayogi Suprayogi; Valentine Valentine
Jurnal Teknik Industri Vol. 17 No. 2 (2015): DECEMBER 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

This paper discusses the multiple jobs scheduling problem with simultaneous resources. The problem involves one or more jobs with each job consist of a set of operations. Each operation is performed by more than one resource simultaneously. Number of units of each resource used for performing an operation is one or more units. The problem deals with determining a schedule of operations minimizing total weighted tardiness. In this paper, solution techniques based on Lagrangian relaxation are proposed. In general, the Lagrangian relaxation technique consists of three parts run iteratively, i.e., (1) solving individual job problems, (2) obtaining a feasible solution, and (3) solving a Lagrangian dual problem. For solving the individual job problems, two approaches are applied, i.e., enumeration and dynamic program¬ming. In this paper, the Lagrangian relaxation technique using the enumeration and dynamic programming approaches are called RL1 and RL2, respectively. The solution techniques proposed are examined using a set of hypothetical instances. Numerical experiments are carried out to compare the performance of RL1, RL2, and two others solution techniques (optimal and genetic algorithm techniques). Numerical experiments show that RL2 is more efficient than RL1. In terms of the solution quality, it is shown that RL2 gives same results compared to the optimal technique and genetic algorithm. However, both RL2 and genetic algorithm can handle larger problems efficiently.

KEUNGGULAN KOMPETITIF INDUSTRI KECIL DI KLASTER INDUSTRI KECIL TRADISIONAL DENGAN PENDEKATAN BERBASIS SUMBER DAYA: STUDI KASUS PENGUSAHA INDUSTRI KECIL LOGAM KIARA CONDONG, BANDUNG Widjajani Widjajani; Gatot Yudoko
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 10 No. 1 (2008): JUNE 2008
Publisher : Institute of Research and Community Outreach - Petra Christian University

Small-scale industries play an important role in the betterment of society. Industrial cluster approach has been used by government as an alternative government policy to increase competitiveness of small-scale industries in Indonesia. An industry cluster consists of core enterprise(s) and related enterprises in which the core acts as a pulling agent for the other counterparts. Therefore, developing the core enterprises is expected to increase competitiveness of the whole cluster. This research is a strategy process research, aiming at identifying and modeling strategic behavior of a successful entrepreneur in a metal-making cluster industry at Kiara Condong Bandung, West Java. Based on the literature review, qualitative research methodology is used in this research by combining soft systems methodology (SSM) and grounded theory. The major findings of this research indicate four kinds of strategic behavior models, namely behavior model of strategy setting, behavior model of production operations, behavior model of research and development and innovation and behavior model of marketing operations. Abstract in Bahasa Indonesia: Industri kecil mempunyai peranan penting dalam meningkatkan kesejahteraan masyarakat. Pendekatan klaster industri dicanangkan oleh pemerintah sebagai alternatif kebijakan pemerintah untuk membangun keunggulan kompetitif di industri kecil. Di suatu klaster industri kecil yang terdiri dari unit usaha inti dan unit usaha penunjang, unit usaha inti merupakan gerbong penghela klaster. Oleh karena itu mengembangkan usaha inti sehingga mempunyai keunggulan kompetitif diharapkan dapat mengembangkan klaster secara keseluruhan. Penelitian ini merupakan penelitian proses strategi (strategy process research) yang meneliti perilaku strategis manajer pemilik industri kecil dalam mengelola usahanya untuk membangun keunggulan kompetitif dengan pendekatan berbasis sumber daya (Resource-Based View atau RBV) dan mengambil studi kasus pengusaha industri kecil yang berhasil di klaster Industri Kecil Tradisional Logam Kiara Condong. Paradigma penelitian yang digunakan adalah interpretatif-induktif-kualitatif dengan penggabungan antara soft systems methodology (SSM) dan grounded theory. Hasil dari penelitian ini berupa model konseptual yang menggambarkan proses Industri Kecil Logam di Industri Kecil Tradisional Logam Kiara Condong dalam membangun keunggulan kompetitifnya. Perilaku strategis yang ditemukan pada penelitian ini terdiri dari empat model, yaitu model perilaku penentuan strategi, model perilaku pelaksanaan produksi, model perilaku pelaksanaan litbang dan inovasi, serta model perilaku pelaksanaan pemasaran. Kata kunci:industri kecil, keunggulan kompetitif, perilaku strategis, resource based view (RBV), soft systems methodology (SSM), grounded theory.

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