cover
Contact Name
Agus Widyianto
Contact Email
aguswidyianto@uny.ac.id
Phone
-
Journal Mail Official
jamat@uny.ac.id
Editorial Address
Jl. Mandung, Serut, Pengasih, Kec. Wates, Kabupaten Kulon Progo, Daerah Istimewa Yogyakarta 55651
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Journal of Automotive and Mechanical Applied Technology
ISSN : -     EISSN : 30897793     DOI : https://doi.org/10.21831/jamat.v1i1
Focus and Scopes The Journal of Automotive and Mechanical Applied Technology (JAMAT) is dedicated to disseminating original research, reviews, and case studies that contribute to the advancement of automotive engineering and mechanical technology. The journal provides a platform for academics, researchers, and practitioners to share innovative ideas, methodologies, and applications in the fields of automotive and mechanical engineering. Scope Areas: Automotive Engineering Advanced vehicle design and development. Powertrain and propulsion technologies (internal combustion engines, hybrid, and electric vehicles). Automotive safety systems and crashworthiness. Autonomous and connected vehicle technologies. Vehicle dynamics, control systems, and diagnostics. Mechanical Engineering Applications Design, analysis, and manufacturing of mechanical systems. Thermodynamics, fluid mechanics, and heat transfer applications. Computational methods and simulations in mechanical engineering. Material science and advanced manufacturing techniques. Robotics and mechatronics. Applied Technologies Integration of Industry 4.0 in automotive and mechanical sectors. Sustainable and green technologies for mechanical and automotive systems. Maintenance and reliability engineering. Applications of AI and machine learning in automotive and mechanical fields. Focus: The journal accepts contributions from a wide range of sectors, including but not limited to: Academic research institutions. Automotive and mechanical industries. Governmental and non-governmental organizations involved in technology development. Articles can focus on theoretical studies, experimental research, applied projects, and reviews of emerging technologies. Submissions are encouraged to explore innovations, problem-solving techniques, and practical implementations that impact the industry and society.
Articles 14 Documents
Development of an LDR-Integrated PDLC Film for Automatic Glare Reduction in Vehicles Nugroho, Riyan Ikhsan; Marcin Noga; Fauzi, Naufal Annas
Journal of Automotive and Mechanical Applied Technology Vol. 2 No. 1 (2025): June
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamat.v2i1.1343

Abstract

The high risk of glare from vehicle headlights at night often becomes a significant contributor to traffic accidents, particularly for motorcyclists and drivers of lightweight vehicles. To address this issue, a smart glare-blocking system based on a PDLC (Polymer Dispersed Liquid Crystal) film has been developed. This research proposes the design, development, and testing of a PDLC film system integrated with an LDR (Light-Dependent Resistor) sensor to automatically detect light intensity and adjust the film's opacity in real-time. The goal is to enhance driver visibility and comfort without compromising overall road safety. The experimental setup involved placing the prototype system at varying distances (0–9 meters) from a controlled light source at night. Measurements were conducted to collect data on light intensity, voltage output, resistance of the LDR, and the degree of light attenuation achieved by the PDLC film. The results showed that at a distance of 1 meter, the PDLC film could block up to 99.85% of incoming light, reducing 12080 Lux to only 17 Lux. Moreover, the film began to react at 6 meters with an output voltage of 34V. It became fully transparent at 8–9 meters with an output of 50V. The findings demonstrate that the PDLC system functions effectively in detecting potential glare and reducing its impact before it reaches the driver's eyes. This intelligent system offers a promising solution for minimizing night-driving hazards by dynamically adapting to changing light conditions.
Design Analysis of Pancanaka 2000 Tooth Bucket Structure Using Finite Element Method Fadhila, Raihan; Budiman, Yosef; Sulistyo, Bambang
Journal of Automotive and Mechanical Applied Technology Vol. 2 No. 1 (2025): June
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamat.v2i1.1381

Abstract

This study tests the structural performance of the Pancanaka 2000 tooth bucket, a common heavy-duty excavation component. The goals are to determine the component testing method, analyze the findings of finite element simulation sub-modeling, and identify the causes of structural failure. Shining 3D scanning created a detailed model of the Pancanaka 2000 tooth bucket. ANSYS simulation software performed a Finite Element Analysis on this model. A 10-ton static force was applied to imitate working circumstances on the bucket teeth tip. The simulation monitored mechanical reactions, including total displacement, von Mises stress, and safety factors, which indicate structural reliability. The study found numerous noteworthy findings. First, the computerized model of the bucket teeth allowed for an exact analysis of loading stress. The simulation revealed a region susceptible to failure under high loads, characterized by a maximum total displacement of 0.38883 mm, a maximum von Mises stress of 321.5 MPa, and a minimum safety factor of 1.328. Qualitative analysis identified material as the leading cause of fracture. Wear and scraping were noticed at the bucket tooth-adapter interface. Mechanical failure was also linked to component gaps exceeding design tolerance. These flaws lead to inappropriate load distribution and stress concentration, resulting in structural failure during operation. According to this study, the durability and performance of excavator components, such as the Pancanaka 2000 teeth bucket, depend on correct design, strict material selection, and precise assembly tolerances.
Development of Special Service Tools Tracker Kingpin Hino Series 300 to Increase Technician Work Efficiency Satria, Adhe; Yoga Guntur Sampurno
Journal of Automotive and Mechanical Applied Technology Vol. 2 No. 1 (2025): June
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamat.v2i1.1423

Abstract

This study focused on the design, development, and evaluation of a Special Service Tool (SST) created explicitly for maintaining kingpin components in Hino Series 300 trucks. The research focused on the challenges and safety issues encountered by technicians stemming from the lack of specialized tools for kingpin removal. This often led to extended service times, variable repair quality, and a heightened risk of damaging components. To address these challenges, the research employed the ADDIE development model, which comprises five stages: Analysis, Design, Development, Implementation, and Evaluation. In the design phase, 3D modeling was performed using SolidWorks, and Finite Element Analysis (FEA) was conducted to verify the tool's structural integrity under various load scenarios, reaching up to 19,613 N. The SST was made from ASTM A36 steel, recognized for its mechanical strength and ease of manufacturing. The simulation results demonstrated that the structure stayed within safe limits for both stress and deformation, achieving a minimum safety factor of 1.1. The implementation took place at PT. MPM Hino Yogyakarta, where field testing showed a significant enhancement in technician efficiency. The SST cut down kingpin maintenance time from 360 minutes to only 42.08 minutes, achieving an impressive 88.3% reduction in time spent. Testing for effectiveness, based on feedback from technicians and supervisors, revealed a high level of user satisfaction, particularly in terms of safety, usability, and ergonomic design. The SST tracker kingpin provides a dependable, effective, and secure option for maintaining commercial vehicles. The successful application of it at a Hino service center highlights its practical benefits and the potential for wider implementation throughout the automotive maintenance sector. Additional improvements could involve ergonomic adjustments and the ability to accommodate various truck models, thereby facilitating broader use.
Engineering Design and Performance Evaluation of a Transmission System for the UG 24 Urban Energy Vehicle Riyanto, Muhammad Farid; Rohman, Juni Noor; Sutiman
Journal of Automotive and Mechanical Applied Technology Vol. 2 No. 1 (2025): June
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamat.v2i1.1779

Abstract

The development of energy-efficient vehicles in student competitions encourages innovation in lightweight and high-performance automotive systems. The Garuda UNY Team, representing Universitas Negeri Yogyakarta, has been actively involved in national competitions such as the Kontes Mobil Hemat Energi (KMHE). In recent evaluations, the team identified a critical weakness in their vehicle's drivetrain, specifically the Internal Gear Hub (IGH) used in the UG-24, which failed to withstand engine torque during acceleration, leading to gear slippage and mechanical failure. To address this issue, a new transmission system was designed and manufactured using the 4D development framework: Define, Design, Develop, and Disseminate. The Define phase identified the mismatch between the IGH design and engine torque requirements. In the Design phase, a new gearbox layout was modeled using Autodesk Inventor, incorporating components such as a crankcase, cover, and custom gear ratios. The development phase involved selecting materials, laser cutting, machining, and assembling transmission parts from mild steel and aluminum. Finally, the Dissemination phase consisted of installing the system in the UG-24 vehicle and conducting a performance evaluation through structured interviews with drivers. Evaluation results showed improved gear shifting performance, with a 75% success rate across ten indicators. Despite positive outcomes, some issues, such as shifting resistance and gear engagement noise, were observed. These were linked to cable friction and dog clutch geometry. Design improvements such as optimized routing and chamfering were recommended for future iterations. This research highlights the impact of tailored transmission systems in student-built energy-efficient vehicles. It provides insight into practical, scalable drivetrain solutions.

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