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All Journal Jurnal Teknologi Jurnal Ilmiah Teknik Industri JRSI (Jurnal Rekayasa Sistem dan Industri) ComTech: Computer, Mathematics and Engineering Applications IJIES (International Journal of Innovation in Enterprise System) eProceedings of Engineering
Judi Alhilman, Judi
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mathematics Mechanical Engineering

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USULAN INTERVAL PREVENTIVE MAINTENANCE DAN ESTIMASI BIAYA PEMELIHARAAN MENGGUNAKAN METODE RELIABILITY CENTERED MAINTENANCE DAN FMECA Afiva, Wirda Hamro; Atmaji, Fransiskus Tatas Dwi; Alhilman, Judi
Jurnal Ilmiah Teknik Industri Vol. 18, No. 2, Desember 2019
Publisher : Muhammadiyah University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v18i2.8551

Abstract

ABC is a company engaged in the production of automotive spare parts and accessories, especially motorcycles. The problems faced by the company, there is frequent damage to the CNC Milling A. The company applies preventive maintenance and corrective maintenance activities, but these maintenance activities have not yet run optimally. Therefore, a maintenance system is developed to improve machine reliability. The method used is Reliability Centered Maintenance (RCM), with the aim of determining the optimal maintenance interval and estimation of efficient maintenance costs. RCM is done by analyzing the Failure Modes Effect and Critical Analysis (FMECA). The results of the FMECA analysis are in the form of a Risk Priority Number (RPN) that shows the components of rail bearings, spindle bearings, and hoses as critical components of the system. Through the RCM method, the maintenance policy is generated in the form of 2 scheduled on-condition tasks, 2 scheduled restorations, and 3 scheduled discard tasks with maintenance time intervals in accordance with the task category and can save maintenance costs of IDR 175.602.300.
Analisis Tingkat Efektivitas Mesin Bowl Cutter Laska Dengan Menggunakan Metode Total Effective Equipment Performance (TEEP) Untuk Menentukan Kebijakan Pemeliharaan Pada PT XYZ Samlistiya, Fahmi Rizal; Alhilman, Judi; Pamoso, Aji
eProceedings of Engineering Vol. 11 No. 4 (2024): Agustus 2024
Publisher : eProceedings of Engineering

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Abstract

PT XYZ adalah salah satu perusahaan yang memproduksi dan mendistribusikan makanan olahan beku berbahan baku dasar seafood, yang diolah menjadi produk olahan, baik ke pasar domestik maupun mancanegara. Fokus utama penelitian ini adalah mengevaluasi kondisi mesin, menentukan faktor-faktor pengaruh dalam six big losses, dan merumuskan kebijakan pemeliharaan untuk meningkatkan efektivitas mesin. Mesin bowl cutter laska dipilih sebagai objek penelitian dikarenakan memiliki jumlah frekuensi kerusakan tertinggi dibandingkan dengan mesin yang lainnya pada PT XYZ. Metode TEEP digunakan untuk mengukur efektivitas mesin yang dihitung dari utilization dengan overall equipment effectiveness (OEE). Banyak faktor mempengaruhi hasil perhitungan efektivitas, dan faktor dengan persentase tertinggi dievaluasi dengan fault tree analysis (FTA). Hasil temuan ini digunakan sebagai dasar untuk kebijakan pemeliharaan dan didapatkan bahwa pengukuran efektivitas menunjukkan bahwa kondisi mesin Bowl Cutter Laska buruk dan tidak berjalan secara optimal. Nilai OEE rata-rata sebesar 81% dan kurang dari standar JIPM kelas dunia (85%). Hal tersebut juga berlaku pada nilai total effective equipment performance (TEEP) rata-rata sebesar 45%. Rendahnya OEE dan TEEP disebabkan oleh kurangnya pemanfaatan aset, seperti kapasitas produksi dan waktu operasi yang tidak digunakan secara maksimal sehingga hal tersebut mempengaruhi nilai six big losses pada faktor idling and minor stoppages losses sebesar 20% dan reduce speed losses sebesar 16%. Usulan kebijakan pemeliharaan melibatkan analisis FTA dan penerapan autonomous maintenance secara terjadwal diusulkan untuk mencegah kerusakan mesin. Kata kunci: OEE, TEEP, Six Big Losses, Fault Tree Analysis
IT Governance Analysis and Design of Microfinance Institution Using COBIT 5 Framework Evaluate, Direct, Monitor (EDM) and Align, Plan, and Organize (APO) Domains (Case Study: PT Sarana Jabar Ventura) Saputra, Muhammad Tamami Dwi; Alhilman, Judi; Supratman, Nurdinintya Athari; Jonathan, Fernaldi; Mulyana, Rahmat; Prasetyo, Yuli Adam
International Journal of Innovation in Enterprise System Vol. 1 No. 1 (2017): International Journal of Innovation in Enterprise System
Publisher : School of Industrial and System Engineering, Telkom University

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Abstract

A microfinance institute (LKM/ Lembaga Keuangan Mikro) is a company that focuses in providing funds to small, early-stage, and emerging firms or small medium enterprises. A company that is engaged in financial sector and works under the surveillance of OJK/ FSA (Financial Service Authority) always has some questions whether this company really needs to implement IT Governance best practices or to what extent it does. The research in PT Sarana Jabar Ventura as one of the microfinance institutes using COBIT 5 framework for the domain of EDM (Evaluate-Direct-Monitor) & APO (Align-Plan-Organize) has shown that the existing practice is not adequate enough to align the business to IT and to manage its risk optimally so the IT solution will be beneficial for the business. Therefore, it is necessary to design the IT governance practice here, based on the seven enablers of COBIT 5 which are categorized into 3 aspects: process, people, and technology. The results of this research are design recommendations as follows: IT policy, procedures, organization structure, job description and the supporting tools and technology. It is expected that the company will implement the results in the near future. Keywords—COBIT 5, IT governance, microfinance institution
Performance Assessment Based on Reliability of Weaving M251 Machine Using Reliability, Availability & Maintainability (RAM) and Cost of Unreliability (COUR) Methods (Case Study at PT Buana Intan Gemilang) Nainggolan, Devi Julietta; Alhilman, Judi; Supratman, Nurdinintya Athari
International Journal of Innovation in Enterprise System Vol. 1 No. 1 (2017): International Journal of Innovation in Enterprise System
Publisher : School of Industrial and System Engineering, Telkom University

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Abstract

The textile industry is one of industries that has an important role in the national economy. PT Buana Intan Gemilang (BIG) is one of textile industry in Indonesia which uses Weaving machine to produce motif and sajadah fabrics. The purpose of this research is to analyze the reliability of Weaving M251 machine that has the most damage in 2014. To avoid losses due to machine damage, the reliability, availability and maintainability of the machine need to be improved by using Reliability, Availability & Maintainability (RAM) Analysis method. In addition, the total cost caused by RAM problems can be calculated by using Cost of Unreliability (COUR) method. Based on the evaluation using Reliability Block Diagram (RBD) modeling, it is found that the critical subsystem reliability = 44.36% for 144 working hours and the total repair time that the critical subsystem needs to perform in acceptable operational condition , at least in 1 to 70 hours. There are two different forms of availability that have been calculated, therefore inherent availability = 95,546% which is used as leading indicator, and operational availability = 85,572% which used as lagging indicator. as it is compared, lagging indicator does not meet the performance of leading indicator. The total of unreliability cost when the machine is in active repair time = 39,580,689.02 IDR and within downtime = 135,588,452.13 IDR. Keywords—Cost of Unreliability (COUR), Lagging Indicator, Leading Indicator, Reliability, Availability & Maintainability (RAM) Analysis.
Performance Evaluation on Printing Machine Goss Universal Using Reliability Availability Maintainability (RAM) Analysis and Overall Equipment Effectiveness (OEE) Wulandari, Sari; Saputra, Muhammad Tamami Dwi; Alhilman, Judi; Athari, Nurdinintya
International Journal of Innovation in Enterprise System Vol. 1 No. 1 (2017): International Journal of Innovation in Enterprise System
Publisher : School of Industrial and System Engineering, Telkom University

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Abstract

The development of science and technology that has been developed more rapidly at this time, along with the increasing need for information itself. By producing a newspaper every day then the states forced PT Pikiran Rakyat to further improve the smoothness, the effectiveness and efficiency of the printing. One way to measure the performance of machines in general by using OEE and to minimize the possibility of losses to be borne by the company is improving the Reliability, Availability and Maintainability (RAM). By using the data in the form of MTTF (Main Time to Failure) and MTTR (Main Time To Repair) of each subsystem of the printing press. Based on calculations using the method of Overall Equipment Effectiveness, by performing calculations based on three main parameters with a study for eight months or 5760 hours, show that the value of the Availability of 75%, the value of the Performance of 97%, and the value of Quality by 98%, then the system has OEE values of 71.60%. The system has a reliability score of 10.59% at 70 hours based on the analytical approach. Maintainability calculations using modeling reliability block diagram, it is found that the entire unit in the system has a chance to settle down a minimum of 12 hours to be able to function again with a probability of 100% to reach its original state. During the eight-month study, Inherent Availability of the system is 99.52% based on analytical approach and Operational Availability of the system is 73.91%. Keywords—Reliability, Availability, Maintainability, OEE, MTTF, MTTR
Money Back Warranty on Pricing in Dual Channel Supply Chain (Case Study : Garlick Store Surabaya) Nainggolan, Devi Julietta; Alhilman, Judi; Supratman, Nurdinintya Athari; Nuha, Hilyatun; Karunia Wati, Putu Eka Dewi
International Journal of Innovation in Enterprise System Vol. 2 No. 1 (2018): International Journal of Innovation in Enterprise System
Publisher : School of Industrial and System Engineering, Telkom University

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Abstract

The development of internet brings great influence in business management, especially in supply chain. Transaction conducted through the internet in supply chain known e-fulfillment, is an integrated process from receiving customer order, managing transaction, warehousing, managing transportation, communicating, with customer using media of information technology. Online sales concept opens up the researchers to conduct research on online sales and offline sales simultaneously, known Dual Channel Supply Chain (DCSC). One category of products that are sold using this structure is fashion product. However, selling fashion product using DCSC structure it still has shortcomings and challenges. Due to customer can not make a selection, viewing and researching product and quality inspaction product dierctly. Based on this, some enterprises provide product warranty sales system offered. Warranty as a guarantee given to customer to provide security and comfort for making purchases. Warranty gives impact on price of product, both online and offline. This leads to the need to do a calculation the optimum price considering money back warranty. Optimum price obtained in the model demand function using quadratic programming adressing the objective function in the form profit maximum in individual channel (Pw, Ps dan Po) as well as whole profit in DCSC by considering the value of money back warranty (g). The result obatained is optimum price for two scenarios. There are optimum price in individual channel without money back warranty and optimum price in online channel with accomodate money back warranty. Keywords—dual channel supply chain (DCSC); money back warranty; optimization.
Proposed Policy Preventive Maintenance Machine Moriseiki NH 4000 DCG Method of Reliability Center Maintenance (RCM) And Risk Based Maintenance (RBM) Case Study PT Pudak Scientific Bewana, Zanuar Galang; Triwibisono, Christanto; Widyastuti, Litasari; Husaini, Fachri; Alhilman, Judi; Athari, Nurdinintya
International Journal of Innovation in Enterprise System Vol. 2 No. 2 (2018): International Journal of Innovation in Enterprise System
Publisher : School of Industrial and System Engineering, Telkom University

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Abstract

PT Pudak Scientific is a company engaged in the manufacture of aircraft parts industry. Meeting the precise and timely demand of aerospace parts from customers becomes a major corporate responsibility. However, Loss Revenue often occurs due to engine breakdown. So that cause because the production target is not achieved, the product reject, and the delay of delivery. One of the machines that often experience breakdown is Mori seiki NH4000 DCG. Mori seiki NH4000 DCG is the finishing machine for Blank fork End product. The demand for this part is quite large, making it a tough task for the Mori Seiki NH4000 DCG machine. But because the breakdown of the machine is high enough to cause production targets every month are often not met. In addition, Maintenance activities that have not noticed the characteristics of engine damage, as well as the distribution of historical data of the machine causing less effective and efficient actions resulted in substantial Maintenance costs. Based on the results of risk analysis of Mori Seiki NH4000 DCG engine damage, in terms of performance loss system caused by a large enough that is 3.773% of machine production capacity per year. This figure exceeds the risk acceptance criteria by the company that is 2%. Therefore it is necessary to find the appropriate Maintenance policy for the Mori Seiki NH4000 DCG machine. The approach is to use Reliability Centeres Maintenance and Risk Based Maintenance. Based on the above two approaches obtained the appropriate interval time so that the Maintenance activities more effective and can improve the efficiency of treatment by reducing the cost of care previously Rp167.506.286, - per year, to Rp 96.147.061, - per year. With the policy is expected to reduce engine breakdown and performance loss caused. So the number of risks that arise for the future are within the criteria of acceptance set by the company. Keywords: Preventive Maintenance, Reliability centered Maintenance, risk based Maintenance, Performance loss
Maintenance System of Universal Goss Printing Machine based on failure data using RCM and RCS method Sarashvati, Made Shanti; Nopendri, Nopendri; Alhilman, Judi; Atmaji, Fransiskus Tatas Dwi; Aulia, Valinouski
International Journal of Innovation in Enterprise System Vol. 2 No. 2 (2018): International Journal of Innovation in Enterprise System
Publisher : School of Industrial and System Engineering, Telkom University

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Abstract

Over time a machine will get experience a decrease in reliability, causing the engine to be damaged at the time of operation, thus disrupting the production line. To maintain a machine remains reliable then a good maintenance system is required. In this research, we will use Reliability Centered Maintenance (RCM) and Reliability Centered Spare (RCS) analysis on the critical system of Goss Universal printing machine based on engine failure data. The result of RCM analysis obtained the optimal preventive maintenance schedule and the type of treatment, while based on the RCS analysis obtained spare part needs following the maintenance schedule. With the result of this analysis, is expected where the machine will keep good and will continue to operate without a sudden breakdown under the production schedule's need. Based on RCM analysis for each critical subsystem obtained interval preventive maintenance for transfer roller 127.60 hours, Ink fountain roller 24.45 hours, ink form roller 29.23 hours respectively, and the wash-up device is no scheduled maintenance. For spare parts inventory strategies the result using RCS method are: transfer roller104 units, ink fountain roller requires 32 units, ink form roller 36 units and are holding spare policy required, and a wash-up device no holding spare parts. Keywords— Failure data, Maintenance System, RCM, RCS
Analisis Keandalan dan Performansi pada Mesin Bingham Lean Benfield (J1107) dengan Metode Reliability, Availability, Maintainability, dan Safety Analysis (RAMS) di PT Pupuk Kujang Dzakir, Daffa Mukhtar; Alhilman, Judi; Budiasih, Endang
eProceedings of Engineering Vol. 10 No. 3 (2023): Juni 2023
Publisher : eProceedings of Engineering

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Abstract

Abstrak-PT Pupuk Kujang merupakan perusahaan yang bergerak pada bidang petrokimia, dan didirikan pada tanggal 9 Juni 1975 di lingkungan departemen Perindustrian, di desa Dawuan Cikampek. Berdasarkan hasil wawancara dan data kerusakan yang ada, mesin yang sering mengalami kerusakan dan downtime adalah mesin bingham lean benfield J1107-C yang terdapat pada plant Ammonia 1A. Fungsi dari mesin bingham lean benfield J1107-C untuk mengalirkan larutan Benfield dari striper ke absorber dimana larutan benfield itu berfungsi untuk menyerap co2 yang berperan dalam proses pembuatan amoniak, jika mengalami kerusakan maka pabrik akan mengalami shutdown dan membuat perusahaan mengeluarkan biaya perbaikan dan kerugian biaya. Tujuan dari penelitian ini adalah untuk mengetahui nilai keandalan, ketersediaan, kemampurawatan, dan tingkat keamanan dari masing-masing subsistem kritis mesin bingham lean benfield J1107-C. Metode yang digunakan ialah reliability, availability, maintainability, dan safety analysis. Dari hasil risk matrix, terpilih subsistem kritis mesin yaitu pump impeller + shaft, dan coupling, sehingga penelitian fokus pada subsistem kritis tersebut. Nilai keandalan eksisting pada masing-masing subsistem kritis pada t = 480 jam adalah 76,42% untuk pump impeller + shaft, 74,04% untuk coupling, dan pada reliability system adalah 56,58%. Nilai inherent Availability subsistem kritis dari mesin bingham lean benfield J1107-C memiliki nilai 99,84%. Menurut standar IVARA, untuk nilai minimum inherent availability sebesar 95%, maka nilai inherent availability dari mesin bingham lean benfield J1107-C adalah baik, karena diatas 95%, dan penggunaan sistem pada Reliability Block Diagram Operational Availability yang bernilai 99.819%. Untuk mencapai nilai maintainability 100% membutuhkan 25 jam untuk Pump Impeller + Shaft dan 10 jam untuk Coupling. Untuk nilai safety integrity level berada pada level SIL 2 untuk t = 24 jam dan SIL 1 untuk t = 144 jam.Kata kunci-Reliability, availability, maintainability, safety integrity level, reliability block diagram.
Usulan Penentuan Kebutuhan Suku Cadang pada Mesin Duan kwei Menggunakan Metode Reliability Centered Spares di PT. XYZ Nurrahman, Ferro Arief; Alhilman, Judi; Pamoso, Aji
eProceedings of Engineering Vol. 10 No. 3 (2023): Juni 2023
Publisher : eProceedings of Engineering

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Abstract

Abstrak-PT. XYZ yang merupakan perusahaan industri farmasi di Indonesia yang didirikan oleh Pemerintah Hindia Belanda. Dalam proses produksi pembuatan obat yang dilakukan, terdapat proses yang sangat penting yaitu dalam pengemasan karena proses tersebut merupakan proses akhir sebelum obat didistribusi. Dalam tahap proses pengemasan di PT. XYZ menggunakan mesin bernama mesin Duan Kwei yang berfungsi untuk mengemas seluruh obat herbal yang berbentuk tablet, dengan demikian mesin tersebut perlu adanya perhatian khusus agar mesin tersebut dapat bekerja secara optimal dan dapat menghasilkan produk yang sesuai. Pada analisis akar masalah menggunakan diagram fishbone dan analisis FMEA diketahui bahwa faktor yang berpengaruh dalam kefetivitasan mesin Duan Kwei adalah keterbatasan stock suku cadang. Berdasarkan data historis perusahaan Sub-sistem sensor dan Bearing memeiliki frekuensi kerusakan yang tinggi, oleh karena itu diperlukannya pemeliharaan khusus terhadap mesin tersebut. Pendekatan tersebut dilakukan dengan menggunakan metode Reliability centered spare yaitu suatu pendekatan yang bertujuan untuk menentukan kebutuhan suku cadang yang dibutuhkan berdasarkan through-life cost dan kebutuhan peralatan dalam operasi maintenance untuk mendukung inventory. Dengan menggunakan metode Reliability centered spare didapatkan kebutuhan Sensor dan Bearing yaitu sebanyak 3 dan 4unit komponen dalam satu tahun dengan safety stock 1unit untuk setiap subsistem.Kata kunci - sensor, bearing, reliability centered spare, through-life cost, safety stock
Co-Authors Ade Rizka Eliyus, Ade Rizka Afiva, Wirda Hamro Aji Pamoso Aulia, Valinouski Azmi, Moh Daffa Al Bewana, Zanuar Galang Christanto Triwibisono Destina Surya Dhamayanti, Destina Surya Dzakir, Daffa Mukhtar Endang Budiasih Fachri Husaini Fathnin, Nisrina Fitria, Tariza Fransiskus Tatas Dwi Atmaji Hidayat, Diansah IKA PRAESITA, IKA Izzaqi, Pebrina Donna Jonathan, Fernaldi Litasari Widyastuti, Litasari Maulidina, Liza Nafiah Nainggolan, Devi Julietta Nopendri Nopendri Nuha, Hilyatun Nurdinintya Athari Supratman Nurrahman, Ferro Arief Pradipta, Sandy Argya Putu Eka Dewi Karunia Wati Rahmat Mulyana Samlistiya, Fahmi Rizal Saputra, Muhammad Tamami Dwi Sarashvati, Made Shanti Sari Wulandari Selvi Marcellia Taufiq Ismail, M Ully Tri Kirana, Ully Tri Yudha Permana Yuli Adam Prasetyo