cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Eswanto
Contact Email
irajtma@irapublishing.com
Phone
+62895321333935
Journal Mail Official
irajtma@irapublishing.com
Editorial Address
Perum Graha Garuda Mas Blok II No. 39 Dusun V Desa Sigara-Gara Kecamatan Patumbak Kabupaten Deli Serdang Provinsi Sumatera Utara, Indonesia, Kode Pos: 20361.
Location
Kab. deli serdang,
Sumatera utara
INDONESIA
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Published by CV. IRA PUBLISHING
ISSN : -     EISSN : 29624290     DOI : https://doi.org/10.56862/irajtma
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) fokus pada artikel ilmiah hasil penelitian dan review dalam bidang teknik mesin dan aplikasinya yang antara lain meliputi: 1. Konversi energi 2. Mekanika 3. Material 4. Manufaktur 5. Lain-lain yang relevan
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 158 Documents
 12   13   14   15   16 
Analisis Kekuatan Hasil Printer 3D Dengan Filamen Acrylonitrile Butadiene Styrene (ABS) Berdasarkan Variasi Suhu Nosel dan Jenis Isian Ma'mun, Hisyam; Supriyanto, Joko; Khusnun Naufal, Gostsa; Burhanudin, Aan; Hermana, Rifki
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.247

Abstract

Technological advancements, including 3D printing, enable the creation of prototypes from digital designs using 3D printers. A popular method is Fused Deposition Modeling (FDM) with thermoplastic materials such as Acrylonitrile Butadiene Styrene (ABS), valued for its quality and affordability. In 3D printing, nozzle temperature and infill type influence the mechanical properties of printed objects. This study aims to determine the tensile strength of ABS with variations in nozzle temperature and infill type. Tensile test results show that a 230°C nozzle temperature produces higher yield strength for most infill types compared to 240°C. The 240°C setting tends to increase maximum tensile strength for grid and concentric infills, but not for gyroid and lines. The concentric infill type exhibited the highest elongation at both temperatures, indicating greater ductility compared to other infill types. These findings are expected to serve as a reference for optimizing printing parameters.
Pengaruh Sudut Kemiringan dan Suhu Nozzle terhadap Kekasaran Permukaan pada Bagian Overhang Hasil Cetak 3D Material PLA Sufyan, M. Fendy Kussuma Hadi; Taufik, Ikhwan; Silviana, Silviana; Sugiyanto, Gito
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.248

Abstract

This study aims to investigate the influence of overhang inclination angle and nozzle temperature on the surface roughness of the overhang section in a 3D printed object using Polylactic Acid (PLA) material with the Fused Deposition Modeling (FDM) method. An experimental approach was employed by varying the overhang angles (35˚, 45˚, and 55˚) and nozzle temperatures (210˚C, 220˚C, and 230˚C) during the printing process. Surface roughness measurements were performed on unsupported overhang areas using a surface roughness tester. The results showed that surface roughness increased with greater overhang angles and higher nozzle temperatures. The lowest surface roughness value was recorded at 210˚C with a 35˚ overhang angle, while the highest was observed at 230˚C with a 55˚ overhang angle. These findings indicate that controlling the nozzle temperature and overhang angle is crucial for achieving optimal surface quality in overhang printing. This study is expected to contribute to the optimization of FDM process parameters to produce smoother surfaces.
Perencanaan Peningkatan Kapasitas Mesin Penanam Padi Berbasis Sintesis Kinematika Dan Dinamika Silalahi, Samuel Tabah Penemuan Parulian; Wijianto, Agus; Zaira, Jupri Yanda; Ma'a, Mustaza
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.253

Abstract

Rice is a food crop commodity that plays a vital role in the Indonesian economy. The results of this study indicate that the designed system is capable of consistently maintaining a 25 cm spacing between seedlings through the harmonic motion of the planting arm. The angular and linear movements of the entire linkage are stable and periodic, resulting in a uniform planting process. The angular velocity of the main shaft is recorded as constant, supporting rotational stability, while the maximum motor torque is within a realistic range for field applications. The system also demonstrates good mechanical efficiency, characterized by stable kinetic energy of the rotational components and controlled motor power consumption. These findings have practical significance for practitioners and the agricultural machinery industry, as they can serve as a reference for the development of rice transplanters that are more energy efficient, highly precise, and suited to rice field conditions in Indonesia, thus potentially increasing productivity and reducing reliance on manual labor.
Pengaruh Kedalaman Alur Ban dan Tekanan Ban Terhadap Gaya Pengereman Kurniawan, Tegar; Muchtar, Agus; Burhanudin, Aan
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.254

Abstract

This study analyzes the effect of tire tread depth and tire pressure on braking force in a Mitsubishi L300 vehicle. An experimental method was applied with variations in tread depth (>1 mm and <1 mm) and tire pressure (30 psi, 50 psi, and 60 psi). Results indicate that both variables significantly affect braking efficiency. The 50 psi–50 psi combination at >1 mm tread depth yielded the highest efficiency (86%), whereas the 30 psi–30 psi combination at <1 mm tread depth recorded the lowest (48%). A tread depth of <1 mm reduced braking efficiency by 15–20% on average. Tire pressures below or above the standard decreased braking performance by 10–15%. Maintaining balanced tire pressure at 50 psi and a minimum tread depth of 1 mm is recommended for driving safety.
Analisis Getaran Pada Bus Trans Jateng Koridor 4 Menggunakan Sensor Akselerometer MPU6050 Dan Metode RULA Wisnumurti, Muhammad Hanafi; Mukhtar, Agus; Burhanuddin, Aan
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.255

Abstract

Public bus drivers are at risk of health issues due to mechanical vibrations and non-ergonomic working postures during long working hours. This study analyzed vibration levels and ergonomic risks of Trans Jateng Corridor 4 bus drivers using an experimental method with an MPU6050 accelerometer sensor at three points: brake/clutch pedal, steering wheel, and driver’s seat at various operational speeds. Ergonomic assessment was conducted using the Rapid Upper Limb Assessment (RULA) method with CATIA V5R20 software during two main work phases. Results showed the highest vibration level on the brake/clutch pedal (3.23 m/s²), still below the threshold limit of 5 m/s² for 6–8 hours of work as regulated by the Ministry of Manpower Decree No. 5/2018. The lowest vibrations were recorded on the steering wheel (0.79 m/s²) and driver’s seat (0.93 m/s²). A RULA score of 3 in both phases indicated a “low risk” category but required long-term preventive measures. Recommendations include the use of anti-vibration footwear, structured breaks every 90 minutes, and driver rotation with a maximum of 6 hours per shift to maintain optimal working conditions and prevent occupational health disorders.
Evaluasi Efektivitas ARTG sebagai Alternatif Operasi RTG Manual di Terminal Petikemas Semarang Alfianto, Faizal Ridho; Mukhtar, Agus; Burhanuddin, Aan
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.259

Abstract

This study evaluates the effectiveness of Automated Rubber Tyred Gantry (ARTG) as an alternative to manual RTG operations at the Semarang Container Terminal. The research focuses on productivity (boxes/hour), maintenance cost efficiency (IDR/month), and workplace safety (number of incidents). A descriptive quantitative case study was conducted from March to May 2025. Results show that ARTG improved productivity by 11.25%, reduced maintenance costs by 46.5%, and recorded zero incidents compared to four incidents with manual RTG. All differences were statistically significant (p < 0.05). These findings indicate that ARTG enhances operational efficiency and safety in port operations. Gradual implementation of ARTG is recommended, considering digital infrastructure readiness, human resource training, and policy support.
Analisis Karakteristik Material Camshaft AISI 8620 dan Besi Cor Kelabu menggunakan Metode Metalografi dan Spektrometri Optik Setijo Budi, Sigit; Hendrawan, Andre Budhi; Akhmadi, Amin Nur; Nashrudin, Hafidz
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.261

Abstract

The demand for non-OEM camshafts is increasing, but this raises concerns about material quality. This study analyses the material characteristics of AISI 8620 and grey cast iron camshafts used in 125cc automatic motorcycles. Testing was conducted using Metallography and Optical Emission Spectrometry. AISI 8620 exhibits a fine ferrite-pearlite microstructure and alloying elements such as chromium and molybdenum, which support heat treatment. Cast iron exhibits a pearlite structure with flake graphite, providing superior damping but less toughness. The results indicate that AISI 8620 is more suitable for high-load applications, while cast iron is suitable for lightweight and cost-effective applications. This study provides important insights into material selection for motorcycle camshaft manufacturing.
Prototipe Sistem Peringatan Dini Kualitas Minyak Rem Pada Angkutan Barang Berbasis Arduino Uno Wijatolah, Jalu Lutfi; Mukhtar, Agus; Burhanuddin, Aan
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.273

Abstract

This research focuses on the development of an Arduino Uno-based early warning system to monitor brake fluid quality in freight vehicles. This system uses a TDS sensor to detect water content in brake fluid in real-time, displays the results on a 2004 IIC LCD screen, and provides visual and audio warnings if the brake fluid quality is below the safe threshold. This research employs the Research and Development method, utilizing a Planning, Production, and Evaluation model, and is validated by experts in the fields of information technology, electronics, and vehicle testing. System performance is evaluated through calibration against the Habotest Brake Fluid Liquid Tester and achieves 100% accuracy on various test samples. This prototype is proven to be easy to operate, provides accurate warnings, and has high feasibility for integration into existing vehicle fleets without requiring significant modifications. This innovation is expected to encourage a culture of preventive maintenance and improve public transportation safety.
Prototipe Alat Pemantau Kualitas Udara Pada Unit Pengujian Kendaraan Bermotor Wardani, Ririswari Widya; Mukhtar, Agus; Burhanuddin, Aan
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.274

Abstract

This study aims to design and evaluate the performance of a prototype air quality monitoring device integrated with an exhaust fan in a vehicle testing room. The experimental method was employed to examine the relationship between variables. The increasing number of motor vehicles has an impact on air quality, particularly in emission testing areas. The device utilizes an MQ-7 sensor for gas detection and a DHT22 sensor for temperature and humidity, with data displayed in real time on an LCD screen. When the gas concentration exceeds nine ppm, the system activates an audible alarm and automatically turns on the exhaust fan to maintain air circulation. The exhaust fan expels hot air from the room while bringing in cooler outside air. Test results indicate that the device operates stably and provides accurate data, making it suitable as an air quality monitoring system in motor vehicle testing facilities.
Analisis Efisiensi Produksi dan Kualitas Pemotongan Mesin Ring Cup Plastik Samsura, DT Alvin Tamimi Ramadhan; Butarbutar, Elky Gunawan; Hermanto, Tino
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.144

Abstract

Abstract This study aims to analyze the efficiency and cutting quality of a plastic ring cup cutting machine as a solution to the manual separation process, which is time-consuming and less effective. An experimental test was conducted using a cutting machine with a design capacity of 100 kg/hour and a 1 hp electric motor operating at a speed of 627.2 rpm. The testing focused on production capacity efficiency, cutting time, accuracy, and the quality of the cut. From ten trials, the average actual output was 44.69 kg/hour with an efficiency of 44.69% compared to its maximum capacity. These results indicate that several factors, including blade sharpness, machine size, and operational conditions, influence the machine’s performance. In terms of quality, some samples showed rough or incomplete cuts due to reduced blade sharpness. Nevertheless, the cutting machine proved capable of significantly improving the speed and efficiency of plastic waste processing on a small scale. With design improvements and proper blade maintenance, the machine’s performance can be optimized, making it a practical and environmentally friendly alternative for plastic waste processing equipment.

Page 14 of 16 | Total Record : 158

 12   13   14   15   16 

Filter by Year

2022 2025


Reset
Filter By Issues
All Issue Vol 4 No 2 (2025): Agustus Vol 4 No 1 (2025): April Vol 3 No 3 (2024): Desember Vol 3 No 2 (2024): Agustus Vol 3 No 1 (2024): April Vol 2 No 3 (2023): Desember Vol 2 No 2 (2023): Agustus Vol 2 No 1 (2023): April Vol 1 No 3 (2022): Desember Vol 1 No 2 (2022): Agustus Vol 1 No 1 (2022): April More Issue