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Jurnal Riset Ilmu Teknik
Published by Lembaga Penelitian dan Ilmu Pengetahuan JEPIP
ISSN : 29877261     EISSN : 29877253     DOI : 10.59976
Core Subject : Engineering,
Engineering
Jurnal Riset Ilmu Teknik is a peer-reviewed journal, Jurnal Riset Ilmu Teknik is published three times annually, in May, August and December. Jurnal Riset Ilmu Teknik provides a place for academics, researchers, and practitioners to publish scientific articles. The scope of the articles listed in this journal is related to various topics such as Industrial Engineering, Informatics Engineering, Civil Engineering, Electrical Engineering, Architecture, Mechanical Engineering, Engineering Education, and other related engineering fields.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 40 Documents
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Redesign the Wood Cutting Saw to Be More Ergonomic Using The TRIZ Method Ravsanjani, Rizky; Raji, Fakhrur; Salahuddin, Manda
Jurnal Riset Ilmu Teknik Vol. 1 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Ilmu Pengetahuan JEPIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59976/jurit.v1i3.22

Abstract

A cutting saw is one of the tools used to cut wood material. In this regard, the cutting saw still has shortcomings in its application. Several testing methods were conducted to analyze the failures of cutting saws circulating in the community, including the Nordic body map questionnaire. After checking directly, there are complaints of pain when using a cutting saw, especially on the right hand. For this reason, it is necessary to redesign it as a consideration later expected to improve the shortcomings in the current cutting saw. Several methods are used in this redesign, including TRIZ, OWAS, and anthropometry. TRIZ is a method used in the development of a design. This method's concept leads to solutions to the problem of contradictions that occur and leads to innovative solutions that have been tested with 100% success. After obtaining the function or attributes of the product, the next stage is to improve the user's posture so that the cutting saw tool can be used optimally and can initiate. The OWAS method corrects the postural position used in cutting saws. The specification of the handsaw product design based on the processing of the voice of the customer using a tree analysis diagram is that the features are reducing fatigue levels and being able to cut quickly, as well as for reliability, namely the handle with anti-slip qualities.
A Decision Support System for Evaluation Service Quality by Fuzzy SERVQUAL: A Case Study of a Modern Riteil Ayu, Juriyah; Sri Yani, Deswita
Jurnal Riset Ilmu Teknik Vol. 1 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Ilmu Pengetahuan JEPIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59976/jurit.v1i3.25

Abstract

This research was conducted in a retail store in the city of Semarang. The main focus was to measure the quality of service against consumer perceptions and expectations of the retail rate. This study analyses the factors influencing consumer perception and how to design services to match consumer expectations. The population in this study is consumers who shop. The method used in this study is the Fuzzy Servqual method. Based on the results of processing and analysis, it is known that the dimensions that have the highest gap value are the Assurance dimension (-1.5175), while the tangibles dimension (-1.37), reliability (-0.318), responsiveness (-0.176) and empathy (0.315). From the result of the gap value, the empathy dimension is very satisfying, and customers feel comfortable with employee service, friendliness, and assistance with product info at retail. The assurance dimension is a dimension that must be improved by improving the state of the room, temperature, and lighting and providing a safe area for retail protesters.
Design and Build a Cassava Peeling Machine to Increase Productivity Putra Samitra, Gahar; Setiawan, Cristhoper; Siman, Joel
Jurnal Riset Ilmu Teknik Vol. 1 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Ilmu Pengetahuan JEPIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59976/jurit.v1i3.26

Abstract

Cassava (Manihotesculenta) is an agricultural commodity widely used to meet various human needs and increase production. Cassava peeling requires technological improvements, including the peeling process. The L-shaped iron, which is shaped at a right angle, functions as a blade that will rotate and slice the material's surface continuously along with the rotation of the peeling cylinder. This research stage includes functional, structural, and testing approaches. The test parameters on the machine prototype are material mass, percentage of damage due to stripping, rate of unpeeled skin, and stripping efficiency. The smallest weight value and the one with the most significant weight value have a large difference in power value, namely 5.83 Watts. This occurs due to the large voltage and electric current deals, which initially peeling cassava with a diameter of 48 mm were only 4.49 volts and 3.3 amperes, which increased when peeling cassava weighing 52 mm. The current value required was 4.8 volts and 4.3 amperes.
Productivity Analysis on Liquid Nitrogen (LIN) and Liquid Oxygen (LOX) Production Using Objective Matrix (OMAX) Method Desi Fitriani; Rahmadhani Nasution; Nurmala Sari
Jurnal Riset Ilmu Teknik Vol. 1 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Ilmu Pengetahuan JEPIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59976/jurit.v1i3.31

Abstract

The amount of liquid nitrogen (LIN) and liquid oxygen (LOX) production capacity experienced significant fluctuations, so it took several months before it reached the production target implemented by the company. It is necessary to measure productivity on the production floor. This study aims to determine the level of productivity of the production section, and the results of this measurement can be used to evaluate the company's productivity level. Productivity measurement using the Objective Matrix (OMAX) method. The criteria used in this study are material productivity, energy productivity, labor productivity, and finished product productivity. The highest productivity values achieved during measurements from January to December were 900 in LIN production in July and 790 in LOX production in January. Factors that cause low productivity are workers who are less careful or negligent in handling machine damage, the absence of a quality control system in checking raw materials before being placed in the storage warehouse, the lack of a shut-off valve between pipes, causing free air to enter, causing products to be rejected and also machines that work continuously for 24 hours.
Cake Breaker Conveyor Machine Maintenance System Analysis Using the Reliability-Centered Maintenance (RCM) Method Basuki Nanda; Valentino Roni
Jurnal Riset Ilmu Teknik Vol. 1 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Ilmu Pengetahuan JEPIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59976/jurit.v1i3.34

Abstract

Machine maintenance plays a vital role in the production activities of a company, which concerns the smooth and bottleneck of production. This research was conducted in a company engaged in palm oil processing. The company often suffers from machine breakdowns and has not found a suitable solution. Reliability Maintenance is one of the methods used to determine the appropriate maintenance actions for each critical component on the Cake Breaker Conveyor (CBC) machine, based on analysis using Failure Mode and Effect Analysis (FMEA) by looking at the highest RPN value of each component, 4 critical elements are obtained from the 11 main features of the Cake Breaker Conveyor (CBC) machine, namely bearing parts, Universal Joint, Rod Clutch and Pen. Determine the maintenance schedule of critical components at the seed separation station. Taking damage, lognormal distribution, proposed replacement schedule 461.5 (hours), pen damage, normal distribution, proposed replacement schedule 587.29 (hours), universal joint damage, normal distribution, proposed replacement schedule 536.46 (hours), clutch rod damage, normal distribution, proposed replacement schedule 581.6 (hours), and axle damage, normal distribution, proposed replacement schedule 586.6 (hours).
Process Improvement in Newspaper Printing through Lean Six Sigma: Waste Analysis and Defect Reduction Strategies Alif, Haiqal; Ahmad Bhat, Aijaz
Jurnal Riset Ilmu Teknik Vol. 2 No. 1 (2024): May
Publisher : Lembaga Penelitian dan Ilmu Pengetahuan JEPIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59976/jurit.v2i1.49

Abstract

This study examines the implementation of Lean Six Sigma (LSS) in a newspaper production company in Malaysia to identify and analyze sources of waste and product defects. Using the DMAIC (Define–Measure–Analyze–Improve–Control) framework—applied up to the DMAI stages—the research integrates qualitative methods (interviews and observations) with quantitative tools (control charts, Value Stream Mapping, and sigma metrics). The results revealed two dominant waste categories: waiting time and defective products. Value Stream Mapping indicated that only 55.32% of the total lead time contributed to value-added activities, while 44.68% consisted of non-value-added or necessary non-value-added processes. Over one year, the company produced 840,000 copies with 12,000 defective products (1.43%), primarily scattered ink (55%), uneven margins (25%), and ink misregistration (20%). The overall process capability achieved an average DPMO of 4,833 and a sigma level of 4.09, indicating stable yet improvable performance. Root cause analysis highlighted human factors as the most influential source of defects, followed by machine, material, and method-related issues. Improvement strategies focusing on operator training, SOP compliance, preventive maintenance, and stricter supervisory controls. This study contributes theoretically by extending the application of LSS to the printing industry and practically by offering actionable recommendations to enhance production quality and efficiency. Future research should implement these strategies and validate their effectiveness through the Control stage of DMAIC.
Application of Rula and Catia V5 in Designing Ergonomic Tools For Cleaning Staff Performance Improvement Agung, Nugroho; Dahlan, Asrul; Ningrum, Septi
Jurnal Riset Ilmu Teknik Vol. 2 No. 1 (2024): May
Publisher : Lembaga Penelitian dan Ilmu Pengetahuan JEPIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59976/jurit.v2i1.55

Abstract

Cleaning staff play an important role in maintaining environmental cleanliness, but most still use simple equipment with non-ergonomic working postures. This condition risks causing musculoskeletal disorders (MSDs) and reducing work productivity. This study aims to design an ergonomically-based tool for collecting trash and leaves that can improve the comfort and efficiency of sanitation workers. The method used is Rapid Upper Limb Assessment (RULA) to measure the level of work posture risk, combined with design analysis us-ing CATIA V5 software tailored to user anthropometric data. The results showed that the RULA score before using the tool was at level 5, indicating the need for immediate improvement. After design and simulation, the RULA score decreased to level 2, meaning that the risk of injury was significantly reduced. These findings prove that ergonomically-based tool design can reduce physical workload, minimize the risk of MSDs, and improve the work efficiency of cleaning staff. This research contributes to the development of ergonomic cleaning equipment innovations and can be used as a reference for the design of similar work tools in other sectors.
Performance Analysis of the Cake Ingredients Supply Chain Integration of Scor And Fuzzy AHP Nurul Azizah, Santi; Teguh Putra; Marsidah Khairani
Jurnal Riset Ilmu Teknik Vol. 2 No. 1 (2024): May
Publisher : Lembaga Penelitian dan Ilmu Pengetahuan JEPIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59976/jurit.v2i1.64

Abstract

In the concept of supply chain, suppliers are one part of supply that is very important and very influential on the growth and sustainability of UMKM themselves, in the production pro- cess UMKM ABC use raw materials where UMKM must have the best suppliers in order to meet consumer satisfaction and not cause problems during the production process. The research conducted aims to determine the indicators that affect the supply chain in UMKM ABC As well as knowing how much supply chain performance value has been achieved by UMKM ABC and also providing proposals for improving performance improvement strategies for UMKM ABC. To solve these problems, supply chain performance measure- ments are carried out using the SCOR (Supply Chain Operation Refer- ence) and F-AHP (Fuzzy Analitycal Hierarcy Process) methods. This method aims to give weight to each matrix, so that performance tribute can be known that supports supply chain effectiveness. There are 12 selected performance indicators with a Supply Chain Management value of 71.20 in the good category
Simulation and Analysis of Production Risk Using Fuzzy Computation and FMEA Method in MATLAB Fiha, Anna; Hakim, Iqbal; Hannadiya Lubis, Farida
Jurnal Riset Ilmu Teknik Vol. 2 No. 1 (2024): May
Publisher : Lembaga Penelitian dan Ilmu Pengetahuan JEPIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59976/jurit.v2i1.68

Abstract

This study applies the Fuzzy Failure Mode and Effects Analysis (Fuzzy FMEA) method to identify, evaluate, and prioritize potential failures in the rice milling production process at Mas Nun’s facility. A total of 14 failure modes were identified based on primary data collected through direct observation, interviews, and literature review. The traditional Risk Priority Number (RPN) was calculated using severity, occurrence, and detection scores, and then refined through fuzzy logic modeling implemented in MATLAB R2022a using the Mamdani inference method. The results show that machine malfunction represents the highest risk with an RPN of 567 and a Fuzzy Risk Priority Number (FRPN) of 827. Additional high-priority failures include high moisture content in rice, poor grain quality, and inadequate drying processes. The fuzzy approach significantly enhances risk prioritization by handling linguistic uncertainty and producing more nuanced FRPN rankings. The study also integrates the 5W+1H framework to propose structured preventive and corrective actions. These findings underscore the relevance of Fuzzy FMEA in agro-industrial settings, particularly for small and medium enterprises (SMEs), by enabling more accurate risk assessment and improving production quality control.
Route Optimization In Pharmaceutical Distribution Using Savings Matrix And Nearest Neighbor Heuristics: A Simulation-Based Study Aldi Musliadin; Dwi Apriadi
Jurnal Riset Ilmu Teknik Vol. 2 No. 1 (2024): May
Publisher : Lembaga Penelitian dan Ilmu Pengetahuan JEPIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59976/jurit.v2i1.78

Abstract

Drug distribution is one of the important factors in the pharmaceutical supply chain that directly affects operational costs and the speed of customer service. This study aims to optimize the distribution route at XYZ Pharmaceutical Warehouse, which previously used an inefficient delivery pattern, resulting in additional costs and delivery delays. This research implements the Clarke–Wright Saving Matrix and Nearest Neighbor heuristic methods and performs validation using Arena simulation. The analysis results show that the combination of the two methods can reduce the total distribution distance from 121.35 km to 103.90 km, or a reduction of 14.38%. The Nearest Neighbor method produced routes with shorter distances, while the Saving Matrix was superior in maximizing vehicle capacity. Simulations using Arena reinforced the results by showing potential savings in operational time and variable costs, particularly in fuel consumption and driver working hours. These findings confirm that the application of simple heuristic algorithms is still relevant in the context of pharmaceutical distribution, with significant implications for cost efficiency and productivity. Further research is recommended to integrate specific pharmaceutical constraints, such as time windows and cold chain, as well as metaheuristic approaches for more robust solutions.

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