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Jurnal Rekayasa Sistem Industri

jrsi
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Published by Universitas Katolik Parahyangan

ISSN : 02161036 EISSN : 23391499 DOI : https://doi.org/10.26593/jrsi.v7i1.2798.47-54

Core Subject : Engineering,

Industrial & Manufacturing Engineering

Data and Analytics Decision Analysis E-Business and E-Commerce Engineering Economy and Cost Analysis Human Factors Information Systems Intelligent Systems Manufacturing Systems Operations Research Production Planning and Control Project Management Quality Control and Management Reliability and Maintenance Engineering Safety and Risk Management Service Innovation and Management Supply Chain Management Systems Modeling and Simulation Technology and Knowledge Management

Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur

Articles 360 Documents

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Pemanfaatan Limbah Plastik dan Kaca sebagai Pembuatan Bata Plastik yang Ramah Api Harpito Harpito; Ismu Kusumanto; Yori Bunga Ananda; Novirza Novirza; Silvia Silvia
Jurnal Rekayasa Sistem Industri Vol. 10 No. 1 (2021): Jurnal Rekayasa Sistem Industri
Publisher : Universitas Katolik Parahyangan

In order to preserve the environment from plastic waste, various ways can be done, one solution is to make a brick made from plastic that is the secret fire and use glass as its mixture. Fire-friendly here using the distillation tool is done so that the oil content of the plastic is separate and the plastics produced are more friendly to the flame. The experimental design by using RAL was used to determine the composition of brick making. In determining the composition is fitting done with a test object, a cube-shaped test object with a size of 5x5x5 cm. Maximum of absorbent brick power is 20%, from the processing result then in the sample can be 4th with water absorption of 0.74%. Based on data processing, the total plastic weight for plastic bricks is 12.77%. Then based on the observations that have been made known at a time 5 minutes 23 seconds. The bricks are not distilled, then the brick that has been distilled melted at a time of 17 minutes 40 seconds. Then based on the calculation result can be cost of raw materials amounting to Rp 51,000, labor cost of Rp 38,461, and the overhead variable fee is Rp 25,000. So the total cost per day of Rp 114,461. Then based on 5% margin, brick sale price of Rp 3,000/seed and breakeven point determination or break event point plastic brick 43 seed, and the point of the scan is Rp 99,350.6493.

Pemeliharaan Mesin Hydraulic Shear Menggunakan Pendekatan Reliability Centered Maintenance dan Manajemen Suku Cadang Faisal Mustaqim; Wilson Kosasih; Ahmad Ahnad
Jurnal Rekayasa Sistem Industri Vol. 9 No. 3 (2020): Jurnal Rekayasa Sistem Industri Vol. 9 No. 3
Publisher : Universitas Katolik Parahyangan

Production equipment that has a high operating time becomes a vital aspect in supporting the operational system, and its maintenance becomes a critical point that must be planned. This research discusses maintenance policies that focus on machine reliability and parts availability to produce proper maintenance actions, optimal maintenance scheduling and good spare-parts management. The research was conducted on a developing manufacturing company engaged the field of agricultural aids in the city of Bekasi. This study focused on hydraulic shear machines because they have the largest downtime value of 8,344.8 minutes. This problem has a negative impact on the company because it can reduce the yield. Based on these conditions, the study was conducted using the Reliability Centered Maintenance method to update the maintenance patterns and Poisson Process to determine the number of component requirements needed for the next one year. The data obtained in the form of historical damage to the machine, component cost, labor cost and production cost. This research produces an optimal preventive replacement time interval that is every 154 hours for the oil seal component, 242 hours for the shear blade component, and 324 hours for the oil hydraulic hose (1/2") component. While the number of critical components required for the next 1 year is 37 units for oil seal component, 10 units for shear blade components, and 7 units for oil hydraulic hose (1/2") component.

Integrasi E-Servqual, Model Kano, dan HOQ dalam Meningkatkan Kepuasan Pelanggan Jasa Ojek Online Wilson Kosasih; Iphov Kumala Sriwana; Rico Adhesi
Jurnal Rekayasa Sistem Industri Vol. 9 No. 3 (2020): Jurnal Rekayasa Sistem Industri Vol. 9 No. 3
Publisher : Universitas Katolik Parahyangan

Online motorcycle taxi service providers become business opportunities that grow and develop. The development of digital business opportunities is also supported by the increasingly widespread service users. This research aims to determine the characteristics of online motorcycle taxi service users and the attributes that are priority for users. In this study, several methods are used and integrated include: e-ServQual, IPA (importance-performance analysis), Kano Model, and House of Quality. The measurement result of the consumer satisfaction index is 55.58%, meaning that the consumers are quite satisfied with the online service. Based on the findings of this study, the attributes prioritized by consumers are the punctuality of the driver's arrival as stated in the application (attribute 14), the driver confirms the customer's order quickly (attribute 15), and the driver is easy to obtain (attribute 17). Finally, this study also recommends corrective actions to these service providers, among others: maintaining server reliability with a relative importance of 21.4%, regularly conducting driver training with a relative importance of 15.2%, and increasing the number of drivers with a relative importance 4.3%.

Implementation of Failure Mode and Effect Analysis and Fault Tree Analysis in Paper Mill: A Case Study Nurul Retno Nurwulan; Wilcha Anatasya Veronica
Jurnal Rekayasa Sistem Industri Vol. 9 No. 3 (2020): Jurnal Rekayasa Sistem Industri Vol. 9 No. 3
Publisher : Universitas Katolik Parahyangan

A good quality control system is important to be implemented to increase productivity and minimize defects in products. One of the quality control methods is failure mode and effect analysis (FMEA). This study uses the FMEA to identify the causes of the defects and recommend the prevention methods to overcome the causes of the defects in an Indonesian paper mill. The risk priority number (RPN) is calculated by multiplying the severity, occurrence, and detection of the failures that have been determined. Unsymmetrical and tainted products are the most dominant defects in the paper mill. An inappropriate machine setting is the cause of unsymmetrical products with the highest RPN of 343. The second highest RPN is problems with bleaching machines that caused tainted products with an RPN value of 216. This study offers suggestions to Indonesian paper mill to prevent and minimize defective products.

Development of Kansei Engineering-Based Method for Service Improvement in Hotel Operations Ni Luh Saddhwi Saraswati Adnyani; Rajesri Govindaraju
Jurnal Rekayasa Sistem Industri Vol. 9 No. 3 (2020): Jurnal Rekayasa Sistem Industri Vol. 9 No. 3
Publisher : Universitas Katolik Parahyangan

The purpose of this study is to develop or improve the Kansei engineering-based method for designing service improvement used in previous studies. Kansei engineering can be integrated with other relevant methods or techniques so that a better method can be produced. This study proposes the development of Kansei engineering-based method that is suitable for designing service improvements in hotel operations by integrating Kansei engineering, text mining, service blueprint, SERVQUAL, Kano model, and QFD. Text mining is used to collect Kansei words by utilizing online customer reviews. Service blueprint is used to determine the service attributes, and SERVQUAL to evaluate current service quality. Kano model is used to classify service attributes into Kano categories. QFD is used to determine customer needs and translate these customer needs into technical characteristics and specifications. The method developed in this study was applied in hotel services in Bali. The results of determining service improvement priorities obtained in this study indicate that service improvements should be focused on the hotel technical requirements which consist of hotel cleanliness standards, availability of housekeeping equipment, professional hotel interior and exterior designers, personnel management, general affair management, employee education and training, and customer relationship management. This method has been successfully applied in the hotel sector. In addition to the hotel sector, this method can also be applied in other service sectors.

Pendekatan FMEA dalam Analisa Risiko Perawatan Sistem Bahan Bakar Mesin Induk: Studi Kasus di KM. Sidomulyo Rizqi Ilmal Yaqin; Zamri Zamri Zamri; Juniawan Preston Siahaan; Yuniar Endri Priharanto; M. Subroto Alirejo; Mega Lazuardi Umar
Jurnal Rekayasa Sistem Industri Vol. 9 No. 3 (2020): Jurnal Rekayasa Sistem Industri Vol. 9 No. 3
Publisher : Universitas Katolik Parahyangan

The fuel system is one of the main engine support systems which is very important in the operation of the KM Sidomulyo main engine. Main engine on ships are operated 24 hours a week or more. The operation main engine needs special treatment of the components on the main engine to prevent failure during operation. Failure Mode and Effect Analysis (FMEA) is a method that can be used to identify the priority scale in maintaining a machine by evaluating the risk of failure that occurs on the machine. This study applies FMEA to determine the priority scale for the maintenance of the KM Sidomulyo main engine fuel system. The results of the identification using FMEA, namely the injector and fuel filter components are components that must be prioritized for maintenance. The Risk Priority Number (RPN) values of the injector and fuel filter components are 192 and 168, respectively. Maintenance priority is based on the component RPN value is above the critical RPN value of the main engine fuel system and includes the priority component on the Pareto diagram. The type of maintenance applied to the injector component is checking dirty fuel which can cause the injector to operate less optimally. While the fuel filter component is cleaning the deposits on the fuel filter cartridge. It is recommended that the inspection of other components be carried out so that the condition of the main engine fuel system has good reliability.

Penerapan Metode Hybrid Genetic Algorithm (GA) dan Pattern Search (PS) untuk Penjadwalan Mata Kuliah Universitas Fani Puspitasari; Parwadi Moengin
Jurnal Rekayasa Sistem Industri Vol. 9 No. 3 (2020): Jurnal Rekayasa Sistem Industri Vol. 9 No. 3
Publisher : Universitas Katolik Parahyangan

The problem of university course scheduling is a complicated job to do because of the many constraints that must be considered, such as the number of courses, the number of rooms available, the number of students, lecturer preferences, and time slots. The more courses that will be scheduled, the scheduling problem becomes more complex to solve. Therefore, it is necessary to set an automatic course schedule based on optimization method. The aim of this research is to gain an optimal solution in the form of schedule in order to decrease the number of clashed courses, optimize room utilization and consider the preferences of lecturer-course. In this research, a hybridization method of Genetic Algorithm (GA) and Pattern Search (PS) is investigated for solving university course scheduling problems. The main algorithm is GA to find the global optimum solution, while the PS algorithm is used to find the local optimum solution that is difficult to obtain by the GA method. The simulation results with 93 courses show that the Hybrid GA-PS method works better than does the GA method without hybrid, as evidenced by the better fitness value of the hybrid GA-PS method which is -3528.62 and 99.24% of the solutions achieved. While the GA method without hybrid is only able to reach a solution of around 65% and has an average fitness value of -3100.76.

Life Cycle Assessment dan Life Cycle Cost untuk Serat Kenaf Desrina Yusi Irawati; Melati Kurniawati
Jurnal Rekayasa Sistem Industri Vol. 9 No. 3 (2020): Jurnal Rekayasa Sistem Industri Vol. 9 No. 3
Publisher : Universitas Katolik Parahyangan

Kenaf fiber from the kenaf plant is the excellent raw material for industry because of the various diversified products it produces. To develop sustainable kenaf fiber, information is needed on the strengths and weaknesses of kenaf cultivation systems with respect to productivity and environmental impact. Therefore, a comprehensive environmental and economic impact assessment was conducted from cultivating kenaf to kenaf fiber. The environmental impact assessment uses the Life Cycle Assessment (LCA) method and economic calculations from the life cycle of kenaf to kenaf fiber to collectors use the Life Cycle Cost (LCC) method. The calculation of environmental impacts is in accordance with the stages of ISO 14040, using a single score assessment. The LCA results show that the treatment stage is the highest contributor of the three groups of impact categories. The highest to the lowest in the impact category group that was influenced by the treatment stage were resources with a value of 21.4 mPt, human health with a value of 8.76 mPt, and ecosystem quality with a value of 1.91 mPt. The cost identified through the LCC is Rp. 6,088,468,333, NVP and B/Cnet are positive. The results of the sensitivity analysis if there is a reduction in production> 6%, the business is still profitable and can be run.

Penentuan Sistem Pengadaan Bahan Baku Utama Berbasis Kontrak pada Perusahaan Roti dan Kue-Kue ANDALAS Irma Felicia; Carles Sitompul; Paulina Kus Ariningsih
Jurnal Rekayasa Sistem Industri Vol. 10 No. 1 (2021): Jurnal Rekayasa Sistem Industri
Publisher : Universitas Katolik Parahyangan

Micro, small and medium enterprises (MSME) are striving to maximize profits through cost’s reduction while maintaining their product qualities and their customer’s satisfaction. ANDALAS is an MSME producing cakes and breads that intuitively purchase its raw material which results in a relatively high purchase cost. We propose a contract-based system using a linear programming approach to manage the purchasing activities of main ingredients. A mathematical model is proposed supporting the purchasing decisions which includes constraints such as: minimum purchase, safety stock, warehouse capacity, and demand’s requirements. The resulting model provides an improvement of 6,30% reduction in purchase costs. The improvement for each ingredient ranges from 4% to 16% where Eggs, Flour, Maizena, Margarine, Butter and Sugar are contractually ordered from one main supplier.

Perancangan Model Stacker Crane Flexible Manufacturing System untuk Pembelajaran di Institusi Pendidikan Ari Setiawan
Jurnal Rekayasa Sistem Industri Vol. 10 No. 1 (2021): Jurnal Rekayasa Sistem Industri
Publisher : Universitas Katolik Parahyangan

Flexible Manufacturing System (FMS) is one of the modern production systems that support the implementation of Industry 4.0. An educational institution plans to build an FMS model for learning the modern production systems. The FMS is a manufacturing system consisting of a set of automatic workstations connected to a material handling system where all activities are controlled by a computer system. The material handling system consists of a material storage system and a transportation system, one example of a transportation system is the stacker crane. In this research, the stacker crane model has been built which consists of three main components, which are the bottom frame, the mast, and the carriage. This component is equipped with stepper motors, leadscrews that are controlled by the micro controller and an application on Android. The stacker crane model is tested to retrieve and deliver the stereofoam material model to the destination which is controlled by the user using an application on Android. The characteristics of the stacker crane model can move the workpiece with a maximum error of 2 mm in the positive x-axis direction, 2 mm in the negative x-axis movement, up to 2 mm positive y-axis, downward at negative y-axis direction 2 mm.

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Home Page

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Contact Name Yustina Tritularsih

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Editorial Address Jalan Ciumbuleuit No. 94, Bandung-Jawa Barat, Indonesia 40141

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Abstract

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Abstract

Contact Name
Yustina Tritularsih

Contact Email
yustina_tritularsih@atmi.ac.id

Phone
-

Journal Mail Official
jrsi@unpar.ac.id

Editorial Address
Jalan Ciumbuleuit No. 94, Bandung-Jawa Barat, Indonesia 40141

Location
Kota bandung,

Jawa barat

INDONESIA