cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
Redaksi Jurnal Rekayasa Mesin Jurusan Teknik Mesin Fakultas Teknik, Universitas Brawijaya Jl. MT. Haryono 167 Malang, Jawa Timur Indonesia 65145
Location
Kota malang,
Jawa timur
INDONESIA
Rekayasa Mesin
Published by Universitas Brawijaya
ISSN : 23381663     EISSN : 24776041     DOI : 10.21776/ub.jrm
Core Subject : Engineering,
Mechanical Engineering
Rekayasa Mesin is published by Mechanical Engineering Department, Faculty of Engineering, Brawijaya, Malang-East Java-Indonesia. Rekayasa Mesin is an open-access peer reviewed journal that mediates the dissemination of academicians, researchers, and practitioners in mechanical engineering. Rekayasa Mesin accepts submission from all over the world, especially from Indonesia. Rekayasa Mesin aims to provide a forum for national and international academicians, researchers and practitioners on mechanical engineering to publish the original articles. All accepted articles will be published and will be freely available to all readers with worldwide visibility and coverage. The scope of Rekayasa Mesin are the specific topics issues in mechanical engineering such as design, energy conversion, manufacture, and metallurgy. All articles submitted to this journal can be written in Bahasa and English Language.
Arjuna Subject : -
Articles 43 Documents
 1   2   3   4   5 
Search results for , issue "Vol. 16 No. 1 (2025)" : 43 Documents clear
ANALISIS RELIABILITY KOMPONEN STASIUN PENGISIAN KENDARAAN LISTRIK UMUM (SPKLU) DENGAN METODE FAILURE MODE AND EFFECT ANALYSIS (FMEA) Setiawan, Falih; Haryadi , Gunawan Dwi; Prahasto, Toni; Widodo , Achmad
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1862

Abstract

Air pollution remains a critical issue that requires prompt and effective resolution. One of the primary strategies to mitigate this problem is the promotion of electric vehicle (EV) usage. However, several challenges persist, including high initial investment costs, inadequate charging infrastructure, and long charging durations. This study aims to analyze the reliability of Public Electric Vehicle Charging Stations (SPKLU) using the Failure Mode and Effect Analysis (FMEA) method. The strength of the FMEA approach lies in its ability to identify potential failure risks, prioritize corrective actions based on the Risk Priority Number (RPN), and provide recommendations for improving the reliability of SPKLU systems. This method enables the reduction of system downtime and maintenance costs. The results reveal that major causes of SPKLU system failures include short circuits, overheating, and inadequate maintenance. The reliability values obtained were 67.36% for the charging sub-system, 36.78% for the control sub-system, and 50% for the overall system. This research offers practical contributions to the development of more reliable and sustainable electric vehicle infrastructure.
ANALISIS JARAK GRID HARDFACING TERHADAP NILAI KEKUATAN BENDING PADA MATERIAL ASTM A36: Hardfacing Awali, Jatmoko; Dewanto, Hizkia Alpha; Ismail , Andi Idhil
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1869

Abstract

Welding is the joining of metals in liquid form using heat energy in making products in the process of joining materials such as in the automotive sector. The development of welding has reached the additive manufacturing process, one of which is hardfacing, namely the thickening of a component that already exists in the industrial sector. In the automotive sector, many people use ASTM A36 or mild steel, namely carbon steel, for standard specifications for structural applications. Hardfacing is a process with an angle welding approach and the resulting structure has a direct relationship with the welding parameters and material characteristics during welding. Adding corner welding grids to increase the strength value of special mechanical properties such as car bodies. This research aims to determine the effect of the shape of the welding grid on the mechanical properties of GMAW welding using ER70S-6 electrodes and a welding current of 80 Ampere with variations in the weld metal spacing, namely 5 mm, 10 mm, 15 mm, and with ASTM A 36 material with a thickness of 2 mm. GMAW welding uses constant current by varying the hardfacing grid. From the research results it is known that the largest stiffness value is found at a variation of the weld metal distance of 10 mm with an average value of 1737.5 N. In the microstructure the phase formed is ferrite (F) and along the grain boundaries pearlite (P) is formed.
EVALUATION OF GEOMETRIC ERROR OF CUSTOMIZED CNC MILLING MACHINE TOOLS ACCORDING TO ISO 10791-7 Prayoga, Benidiktus Tulung; Hendaryanto, Ignatius Aris; Winarno, Agustinus
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1878

Abstract

Due to open technology, there exists an abundance of inexpensive information accessible for study. One such piece of information pertains to customization or do-it-yourself (DIY) CNC milling machines. However, customized milling machines often suffer from several limitations, including a lack of component dimension accuracy, inappropriate interaction between components, low rigidity, and control system problems, all of which can impact the cutting performance and accuracy of the workpieces. This study aimed to measure the extent of these impacts on the accuracy of the workpieces. The errors in customized CNC milling machines were identified using a ball-bar system and cutting tests conducted according to ISO standards. The results of this study concluded that improvements must be made to the interaction between machine components to reduce geometric errors to levels acceptable according to standards. This customized CNC milling shows promise for machining workpieces with an accuracy of ± 0.2 mm.
RISK ASSESSMENT OF GAS PIPELINE CROSSING UNDER RAILWAY TRACKS AND DENSE RESIDENTIAL AREAS Nurdiansyah, Angga; Puja , IGN Wiratmaja; Kariem, M Agus
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1885

Abstract

The crossing of Gas pipelines with railways is part of the energy transportation infrastructure that requires special attention, both to the operational safety of the pipeline and the railway line itself. Therefore, stakeholders need to conduct a risk assessment of each pipeline and railroad crossing to ensure that the risks are within safe and tolerable limits. This study aims to assess the risk at a gas pipeline crossing with a railway line in Central Java Province, Indonesia, using a quantitative risk assessment (QRA) approach with reference from the BS 8010-3:2009 +A1 2013 standard. The assessment results at the crossing showed an individual risk of 3,35x10-8/year and a societal risk in the ALARP Zone. The proposed risk mitigation can reduce the individual risk from 3,35x10-8/year to 1,12x10-8/year. However, although the risk mitigation can reduce the individual risk at the crossing location, the societal risk is still in the ALARP Region. Therefore, the crossing between the gas pipeline and the railway needs the attention, both pipeline operators and railway companies, to ensure the operational safety and security of both parties.
MATHEMATICS MODELLING AND EXPERIMENTAL STUDY THE EFFECT OF VORTEX WATER TURBINE BLADE DESIGN OF TURBINE EFFICIENCY Fitriana, Laila; Saputro , Herman; Purwanto, Aris; Huda, Damar Sunanil; Muslim, Riyadi
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1899

Abstract

The current demand for electrical energy is crucial to support facilities and infrastructure across various sectors, including household, public, and industrial areas. In Indonesia, the reliance on fossil fuels for electricity generation remains high, contributing to significant emissions. Renewable energy sources, such as water energy, present a viable solution to mitigate these emissions and enhance environmental sustainability due to their eco-friendly and sustainable characteristics. Micro hydro energy can be generated by micro-scale power plants using hydropower by converting fluid rotation into electrical energy called Gravitational Water Vortex Power Plant. In water vortex power plant, the blades have a significant influence on the produced power of turbine. For this reason, it is necessary to have a suitable blades design to produce optimal power and efficiency. This study investigates the impact of different vortex turbine blade shapes straight blade, L blade, and curved blade. We used numerical and simulation to investigate the power and efficiency of vortex-type water turbines. Simulation results indicated significant effects of blade shape variations and the distance between blades and the outlet on turbine performance. The straight blade exhibited a tangential velocity of 2.95 m/s and torque of 1.49 Nm, producing 20.94 watts with an efficiency of 84.71%. The L blade demonstrated a tangential velocity of 2.84 m/s and torque of 1.54 Nm, yielding 20.82 watts with an efficiency of 84.3%. In contrast, the curved blade showed a tangential velocity of 2.83 m/s and torque of 1.21 Nm, generating 16.32 watts with an efficiency of 65.97%. Experimental testing revealed that the curved blade produced the highest power and efficiency at 11.64 watts and 23.56%, respectively. The optimal distance between the blade and the outlet was determined to be 2 cm, achieving the same power and efficiency values.
OPTIMIZATION OF CALIPER BRACKET DESIGN AS AN EFFORT TO IMPROVE FUEL EFFICIENCY Wilujeng, Auliana Diah; Fatah, Misbakhul; Ridwan, Muhammad
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1911

Abstract

Ragapadmi's automobile was modified by the Sevta team so that it could compete in the KMHE race. To increase fuel efficiency, the car's materials and design were altered. In order to decrease excessive friction in the brake system, the caliper bracket needed to be adjusted. Lightweight and simple materials also needed to be used when doing repairs. Therefore, to minimize caliper friction when not braking, a perfect bracket is required. Three different caliper bracket designs were created to create a suitable (strong, light, and precise) bracket that can resist the 569.43 N braking force of the Ragapadmi automobile. Utilizing CAD and CAM tools to simulate strength, the strength of the brackets and materials is tested by creating a CNC toolpath program. The aluminium 6061 material used to make the calliper bracket is robust, lightweight, and precise. Following strength modelling, model 3 provides a mass of 0.099567 kg and a deflection value of 0.084 mm. The caliper bracket was machined in 174.86 minutes using a CNC milling machine, and its roughness value is 0.432µm, or N5 roughness class.
INVESTIGASI EKSPERIMENTAL KARAKTERISTIK KEKUATAN TARIK PADUAN RESIN FLEKSIBEL-STANDAR UNTUK MATERIAL 3D PRINTING Dyaksa, Gilang Argya; Nugraha, Felix Krisna Aji; Hermawan, Oktavianus Nekson; Putra, Mahendra Pratama; Astyanto, Achilleus Hermawan
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1913

Abstract

Over the years, technologies of 3D printing have enhanced the opportunity to ease the production of complex geometries. In particular, it further implies that the flexibility of materials is of a great importance. Therefore, the works covering studies of applicability on novel materials in rapid prototyping contribute to the development of additive manufacturing. The present work experimentally investigates a mechanical property, namely tensile strength, of 3D printing materials on the basis of the concentration of flexible-standard resins. Tensile strengths were obtained by a series of tensile tests. Here, the result reveals that the tensile strength monotonously decreases as the increase of the concentration of flexible resin’s concentration. Moreover, an ANOVA analysis strongly implies a consistent relationship between the tensile strength and the material’s mixture.
SOFT MAGNETIC COMPOSITE (SMC) ANALISIS DENGAN BIBLIOMETRIC Waloyo, Hery Tri; Kurniawan, Krisna Budi; Ahmad, Fauzi; Putra, Ferdiansyah; Fauzan, M. Afif; Firmansyah, Muhammad Gilang; Mujianto, Agus
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1917

Abstract

Soft Magnetic Composite (SMC) is a composite material made by binding iron (Fe) powder with non-magnetic materials such as epoxy resin. The main properties of SMC, which have high electrical resistance yet can efficiently conduct magnetic fields, make it a primary choice for various applications that require efficiency, reliability, and high performance. Extensive research has been conducted on SMC, making it necessary to perform a bibliometric analysis to categorize and observe developments in SMC research. The main objectives of this study are to understand patterns in scientific publications, identify the most productive research developments, determine research linkages, and identify collaboration networks related to SMC. A total of 1067 documents, 347 sources, and 2113 authors were recorded in the Scopus database between 2005 and 2024. The number of article publications has increased annually by 4.36%. China is the most productive country and also has the most extensive international collaboration networks. The majority of publications are published in journals with specific topics, primarily focusing on magnetics and magnetic materials.
DESIGN BACK PROPAGATION NEURAL NETWORK (BPNN) – PID OF ACTIVE AIR SUSPENSION BASED ON HALF CAR MODEL AT PLUG-IN HYBRID ELECTRIC VEHICLE (PHEV) Sampurno, Bambang; Windarta, Kyla Anisa; Toriki, Mohammad Berel; Rusdiyana, Liza; Suryandani, Dika Andini
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1919

Abstract

A Plug-In Hybrid Electric Vehicle (PHEV) is a car with a combination of an electric motor and an internal combustion engine (ICE). The implementation of active air suspension in this research uses a half car model. Mathematical modeling is used to obtain system responses such as body displacement, body acceleration, rear wheel displacement, and rear wheel acceleration using MATLAB software. There are 3 test modes, namely passive suspension, active suspension, and implementation using a neural network-based control system. Based on these 3 test modes in 3 conditions, the use of passive suspension for body displacement produces a maximum overshoot of 133% and a settling time of 2.15 seconds. Meanwhile, the active suspension produces 43.33% and a settling time of 0.7 seconds. When using a neural network, it produces 50% and a settling time of 2.14 seconds. Some while, the use of passive suspesion foor body acceleration produces a maximum overshoot of 133%, arms of 124,2, and a settling time of 2.15 seconds. Meanwhile, the active suspension produces maximum overshoot of 43.33% , arms of 2.92, and a settling time of 0.7 seconds. When using a neural network, it produces maximum overshoot of 50%, arms of 2.92 and a settling time of 2.14 seconds.
INNOVATIVE DESIGN AND FABRICATION OF FIXTURES FOR ENHANCED ULTRASONIC TESTING Hakim, Rahman; Hapsari, Windi; Irawan, Benndy Haddli
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1925

Abstract

Ultrasonic Non-Destructive Testing (UT) is essential in manufacturing to ensure measurement accuracy by calibrating tools against specified standards. However, UT calibration often faces challenges such as oil spills, usability issues, and lengthy processes. This study addresses these challenges by designing a specialized fixture to streamline the calibration of a 33.8 kg cylindrical UT calibration block. The fixture's design focuses on user requirements, enabling smooth block rotation and effective oil management during calibration. Key design principles were applied, including Degrees of Freedom (DoF) and locating and clamping mechanisms. Finite Element Method (FEM) simulations demonstrated a maximum stress value of 18.495 MPa and a Factor of Safety (FoS) of 22.89, confirming the fixture’s structural reliability. The proposed fixture reduced calibration cycle time by 48.7%, significantly enhancing efficiency. In conclusion, the fixture offers a safe, practical, and effective solution to optimize UT equipment calibration.

Page 3 of 5 | Total Record : 43

 1   2   3   4   5 

Filter by Year

2025 2025


Reset
Filter By Issues
All Issue Vol. 16 No. 3 (2025) Vol. 16 No. 2 (2025) Vol. 16 No. 1 (2025) Vol. 15 No. 3 (2024) Vol. 15 No. 2 (2024) Vol. 15 No. 1 (2024) Vol. 14 No. 3 (2023) Vol. 14 No. 2 (2023) Vol. 14 No. 1 (2023) Vol. 13 No. 3 (2022) Vol. 13 No. 2 (2022) Vol. 13 No. 1 (2022) Vol 12, No 2 (2021) Vol 12, No 1 (2021) Vol 11, No 3 (2020) Vol 11, No 2 (2020) Vol 11, No 1 (2020) Vol 10, No 3 (2019) Vol 10, No 2 (2019) Vol 10, No 1 (2019) Vol 9, No 3 (2018) Vol 9, No 2 (2018) Vol 9, No 1 (2018) Vol. 9 No. 1 (2018) Vol 8, No 3 (2017) Vol 8, No 2 (2017) Vol 8, No 1 (2017) Vol 7, No 3 (2016) Vol 7, No 2 (2016) Vol. 7 No. 2 (2016) Vol 7, No 1 (2016) Vol 6, No 3 (2015) Vol 6, No 2 (2015) Vol 6, No 1 (2015) Vol 5, No 3 (2014) Vol 5, No 2 (2014) Vol 5, No 1 (2014) Vol 4, No 3 (2013) Vol 4, No 2 (2013) Vol 4, No 2 (2013) Vol 4, No 1 (2013) Vol 3, No 3 (2012) Vol 3, No 3 (2012) Vol 3, No 2 (2012) Vol 3, No 1 (2012) Vol 3, No 1 (2012) Vol 2, No 3 (2011) Vol 2, No 2 (2011) Vol 2, No 1 (2011) Vol 1, No 3 (2010) Vol 1, No 2 (2010) Vol 1, No 1 (2010) More Issue