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Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics)
Published by President University
ISSN : 25276212     EISSN : 25412876     DOI : -
Core Subject : Science, Engineering,
Energy Materials Science & Nanotechnology Mechanical Engineering Transportation
Journal of Mechanical Engineering and Mechatronics merupakan jurnal keilmuan bidang teknik mesin dan mechatronics yang memuat tulisan-tulisan ilmiah mengenai penelitian-penelitian murni dan terapan serta ulasan-ulasan umum tentang perkembangan teori, metode dan ilmu-ilmu terapan terkait.
Arjuna Subject : -
Articles 105 Documents
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THE EFFECT OF CURRENT VARIATION ON TENSILE STRENGTH IN SMAW WELDING USING SS400 STEEL Abdullah, Salman Faruqi; Anggraini, Lydia
Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Vol 9, No 2 (2024): Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mecha
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jtmm.v9i2.5522

Abstract

Welding is one of the important processes in the manufacturing industry. One of the welding methods that is currently used is metal arc welding (SMAW) shields. In smaw welding, the electric current used has a crucial role in determining the welding characteristics, including the tensile strength of the weld joint. The aim of this research is to determine the effect of variations in current strength on the tensile strength using SS400 steel. The method used in this research is the experimental method. This research was carried out by making specimens with a V-shaped seam which were then welded using varying amperage currents of 75 A, 85 A and 95 A. The material used was SS400 steel which had a thickness of 6 mm. So, from this research, the results obtained are the highest tensile accuracy value, namely at a flow accuracy of 95 on the ker 2 sample, resulting in a total tensile accuracy value of 1180.60 Kgf. And the lowest tensile accuracy value is at 75 flow curves in the ker 1 sample, resulting in a total tensile accuracy value of 1093.88 Kgf. This is due to the fact that each variation in current accuracy greatly influences the Tensile Accuracy.
Effect of an Electromagnetic Fuel-Saving Device on Motorcycles Using Blended fuel of Pertalite-bioethanol Todaro, Muhammad; Nufus, Tatun Hayatun; Susanto, Iwan; Siregar, Rolan
Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Vol 9, No 2 (2024): Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mecha
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jtmm.v9i2.5783

Abstract

The increasing demand for fuel efficiency and environmental sustainability has led to the exploration of alternative fuel blends and innovative fuel-saving technologies. This study investigates the effect of an electromagnetic fuel-saving device on the performance of a motorcycle using a Pertalite-Bioethanol fuel blend at different compositions (P100, P90, P80, and P70). The engine's performance was evaluated based on Maximum Torque, Brake Horse Power (BHP), and Specific Fuel Consumption (SFC) using a chassis dynamometer test. The results show that the use of the electromagnetic fuel-saving device significantly improves motorcycle performance. The highest torque was recorded at P80, reaching 13.52 Nm with the device, compared to 12.7 Nm without the device. Similarly, BHP at P80 increased from 7.45 HP (without device) to 9.89 HP (with device), indicating enhanced combustion efficiency. Additionally, SFC was lower when using the device, with the lowest fuel consumption observed at P80 (0.025 kg/HP·h with the device), compared to 0.029 kg/HP·h without it. These findings suggest that a 20% bioethanol blend (P80) provides an optimal balance of power, torque, and fuel efficiency, particularly when combined with electromagnetic fuel treatment. However, at higher bioethanol concentrations (P70), performance slightly declined, likely due to the lower energy content of ethanol compared to gasoline. The improvement in efficiency with the electromagnetic device is attributed to the enhanced dispersion of hydrocarbon molecules, leading to better combustion. The electromagnetic fuel-saving device effectively enhances engine performance and fuel efficiency, particularly when paired with a 20% bioethanol blend. This study provides valuable insights into the potential of alternative fuel treatments in improving combustion efficiency and sustainability. Future research could focus on long-term durability, emissions analysis, and further optimization of bioethanol fuel blends for improved engine performance.Keywords: Electromagnetic fuel-saving device, Pertalite-Bioethanol blend, Motorcycle performance, Fuel efficiency.
Comprehensive Review of Fast Charging Technology and DC-DC Converters in Electric Vehicle Development: Challenges and Future Directions Noval, Rahmat; Zainuri, Fuad; Tullah, M. Hidayat; Todaro, Muhammad; Ramdhan, Fuzi Rachmat
Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Vol 9, No 2 (2024): Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mecha
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jtmm.v9i2.5782

Abstract

Electric vehicles (EVs) are at the forefront of global initiatives to reduce greenhouse gas emissions and tackle urgent environmental challenges. This study presents a comprehensive review of fast charging technologies and DC-DC converters, which are crucial in the development of EV infrastructure. It explores various DC-DC converter topologies used in EVs and examines the challenges associated with fast charging infrastructure. Additionally, the study analyzes the application of artificial neural networks (ANNs) for predicting junction temperatures of electronic components in EVs. The findings indicate that ANNs enhance the accuracy of temperature predictions, contributing to performance optimization and extended component lifespan. Furthermore, the study underscores the significance of energy management technologies, particularly the integration of hybrid energy storage systems (HESS) that combine batteries and supercapacitors. The study’s implications include recommendations for advancing fast charging technology, improving thermal management, and educating drivers to enhance EV energy efficiency. Despite existing challenges, technological advancements in these areas hold great promise for accelerating EV adoption and supporting global decarbonization efforts.Keywords: Electric Vehicle (EV), Artificial Neural Network (ANN) Model, Thermal Management, Hybrid Energy Storage System (HESS), Energy Management.
Pengukuran Beban Kerja Mental Pada Bengkel Motor di Desa Pawidean Dengan Metode NASA-TLX Pradhana, Claudha Alba; Farhan, Ahmad; Kusmayadi, Adi; Irawan, Candra
Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Vol 10, No 1 (2025): Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mech
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jtmm.v10i1.5866

Abstract

Abstrak. Usaha Mikro, Kecil, dan Menengah (UMKM) memiliki peran penting dalam perekonomian Indonesia, termasuk di sektor bengkel motor. Namun, di balik operasionalnya, para pekerja menghadapi tantangan berat, terutama dalam hal beban kerja mental dan fisik. Penelitian ini bertujuan untuk mengukur tingkat beban kerja mental para mekanik menggunakan metode NASA-TLX (National Aeronautics and Space Administration Task Load Index), yang menilai enam aspek utama: tuntutan mental, tuntutan fisik, tuntutan waktu, kinerja pribadi, usaha, dan tingkat frustrasi. Hasil penelitian menunjukkan bahwa aspek usaha (Effort) memiliki skor tertinggi dengan rata-rata 364, disusul oleh tuntutan fisik (328) dan tuntutan waktu (124). Operator dengan beban kerja mental tertinggi memperoleh skor NASA-TLX sebesar 82, sementara yang terendah adalah 72. Beban kerja yang tinggi ini disebabkan oleh berbagai faktor, seperti banyaknya pekerjaan yang harus diselesaikan dalam waktu terbatas, tuntutan hasil kerja yang sempurna, serta kurangnya tenaga kerja sehingga karyawan harus bekerja lebih keras. Untuk mengatasi masalah ini, beberapa solusi dapat diterapkan, seperti menambah tenaga kerja, menyederhanakan proses pencatatan, serta memberikan insentif bagi pekerja lembur. Dengan langkah-langkah ini, diharapkan kesejahteraan pekerja meningkat dan produktivitas bengkel tetap terjaga.Kata Kunci: Beban kerja mental, NASA-TLX, mekanik bengkel, stres kerja, produktivitas.Abstract. Micro, Small and Medium Enterprises (MSMEs) play an important role in the Indonesian economy, including the motorcycle repair sector. However, behind their operations, workers face tough challenges, especially in terms of mental and physical workload. This study aims to measure the level of mental workload of mechanics using the NASA-TLX (National Aeronautics and Space Administration Task Load Index) method, which assesses six main aspects: mental demands, physical demands, time demands, personal performance, effort, and frustration level. The results showed that the Effort aspect had the highest score with an average of 364, followed by Physical demands (328) and Time demands (124). The operator with the highest mental workload obtained a NASA-TLX score of 82, while the lowest was 72. This high workload is caused by various factors, such as the amount of work that must be completed in a limited time, the demand for perfect work results, and the lack of manpower so that employees have to work harder. To overcome this problem, several solutions can be implemented, such as increasing the workforce, simplifying the recording process, and providing incentives for overtime workers. With these measures, it is hoped that worker welfare will improve and workshop productivity will be maintained.Keyword: Mental workload, NASA-TLX, workshop mechanic, work stress, productivity.
Pengujian Performa Pada Variasi Tekanan dan Diamater Outlet Nozzle pada Mesin Dry Leak Test Amat, Mohammad Azwar; Badruzzaman, Badruzzaman; Gunawan, Leo Van; Karjo, Ardy
Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Vol 10, No 1 (2025): Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mech
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/jtmm.v10i1.5827

Abstract

Abstrak. Mesin Dry Leak Test adalah alat yang digunakan untuk menguji kebocoran pada suatu komponen tanpa menggunakan cairan. Nozzle merupakan komponen yang paling berpengaruh pada mesin dry leak test karena mendistribusikan aliran udara pada komponen yang akan di uji. Pada penelitian ini dilakukan rancang-bangun mesin dry leak test dengan nozzle dan dies spesifik yang akan digunakan pada lampu reflektor mobil Avanza. Kemudian pengujian performa mesin dilakukan dengan memvariasikan lubang outlet nozzle dengan dimensi Ø 2/3/4 mm dan tekanan input pada rentang 1 – 5 Bar. Diameter outlet 2 dan 3 mm memiliki perfroma yang baik hingga 3 Bar. Sedangkan dia. 4 mm hanya bisa digunakan pada tekanan 1 Bar.Abstract. The Dry Leak Test Machine is a tool used to test components for leaks without using liquid. The nozzle is the component that has the most influence on the dry leak test machine because it distributes air flow to the component to be tested. In this research, the design and construction of a dry leak test machine was carried out with a specific nozzle and dies that will be used on the reflector lights of the Avanza car. Then machine performance testing was carried out by varying the nozzle outlet hole with dimensions Ø 2/3/4 mm and input pressure in the range 1 – 5 Bar. Outlet diameters of 2 and 3 mm have good performance up to 3 Bar. Meanwhile dia. 4 mm can only be used at 1 Bar pressure.

Page 11 of 11 | Total Record : 105

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