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Jurnal Pendidikan Teknik Mesin Undiksha
Published by Universitas Pendidikan Ganesha
ISSN : 26141876     EISSN : 26141884     DOI : http://dx.doi.org/10.23887/jjtm.v7i1.18616
Core Subject : Education, Engineering,
Automotive Engineering Education Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Jurnal Pendidikan Teknik Mesin, adalah jurnal ilmiah yang diterbitkan oleh Jurusan Pendidikan Teknik Mesin, Fakultas Teknik dan Kejuruan, Universitas Pendidikan Ganesha. Jurnal ini bertujuan untuk mewadahi artikel-artikel hasil penelitian dan hasil pengabdian masyarakat dibidang pendidikan dan pembelajaran teknik. Pada akhirnya Jurnal ini dapat memberikan deskripsi tentang perkembangan ilmu pengetahuan dan teknologi di bidang pendidikan teknik mesin bagi masyarakat akademik. Jurnal ini terbit 3 kali setahun.
Arjuna Subject : Umum - Umum
Articles 308 Documents
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Pengaruh Model Pembelajaran Kooperatif Type PJBL Terhadap Hasil Belajar System Tata Udara Teknik Elektronika Siswa Kelas XI TE Di SMK N 3 Singaraja: The Influence of Project-Based Learning Model on Learning Outcomes of Air Conditioning Systems in Electronic Engineering Department at State Vocational School 3 Singaraja Kadek Karuna Wibawa; Edi Elisa; I Nyoman Pasek Nugraha
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.115089

Abstract

The low learning outcomes of students in the Air Conditioning System course indicate the need for an instructional model that can enhance student engagement and improve the quality of the learning process. Project-Based Learning (PjBL) is an instructional model that is well suited to vocational education because it integrates conceptual understanding with practical experience through project completion. This study aimed to analyze the effect of implementing Project-Based Learning on the learning outcomes of eleventh-grade students in the Electronics Engineering Program at SMK Negeri 3 Singaraja. This study employed a quantitative approach using a pre-experimental method with a one-group pretest–posttest design. The study population consisted of 58 students, while the research sample comprised 29 eleventh-grade Electronics Engineering students. Data were collected using a multiple-choice objective test that had been validated through content validity assessment. The data were analyzed using descriptive statistics, normality and homogeneity tests, N-Gain analysis, and a paired-samples t-test with the assistance of SPSS software. The results showed that the mean learning outcome increased from 72.55 on the pretest to 82.00 on the posttest. The average N-Gain score was 0.7501, which falls into the high category, while the paired-samples t-test yielded a significance value of 0.001 (p < 0.05). These findings indicate that the implementation of Project-Based Learning has a positive and significant effect on students' learning outcomes in the Air Conditioning System course. Therefore, Project-Based Learning can be considered an effective instructional model for improving the quality of teaching and learning as well as students' competency achievement in technical and vocational education.
Analisis Laju Keausan Kampas Rem Campuran Arang Sabut Kelapa Dan Kulit Pisang: Wear Rate Analysis Of Coconut Coir And Banana Peel Charcoal Brake Pads Satria Yoga Ramadhani; Ratna Monasari; Akbar Anugrah
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.115099

Abstract

The effect of the combination of coconut coir charcoal and banana peel charcoal on the wear rate of motorcycle brake pads as an eco-friendly, non-asbestos material is evaluated. The biocomposite brake pads were fabricated using 200-mesh coconut coir and banana peel charcoal fillers with a volume fraction variation of 0–50%, compounded with Fe powder, CaCO₃, and polyester resin as the binding matrix. Wear testing was conducted using a disc brake simulator at a speed of 1800 rpm, a braking pressure of 10 psi, and a test duration of 120 seconds for each specimen. The wear rate was calculated based on the mass difference before and after testing relative to the contact surface area and test duration. The results indicate that an increase in coconut coir charcoal content consistently reduces the wear rate, whereas a higher composition of banana peel charcoal causes faster pad wear. The specimen containing 50% coconut coir charcoal, recording a value of 0.000865 g/mm.sec, provided the best wear resistance among all biocomposite variations, while the original equipment manufacturer (OEM) brake pads maintained the lowest wear value as the reference standard. These findings confirm the potential of coconut coir charcoal as the primary reinforcement for polyester resin-based brake pad composites.
Keefektifan Media Video Animasi Canva Terhadap Peningkatan Hasil Belajar Dasar Gambar Teknik Siswa SMK: Effectiveness of Canva‑Based Animated Video Media in Improving Vocational High School Students’ Learning Outcomes in Basic Technical Drawing Dani Saputra; Shohihatur Rohman
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.115637

Abstract

This study aims to determine whether Canva animated video media is effective in improving learning outcomes in basic technical drawing for 10th-grade Automotive Technology students at SMK Muhammadiyah 2 Semarang. The background underlying this study is students’ low understanding of technical drawing material and a learning process that is still dominated by lecture-based methods without the use of learning media. This study employs a quantitative approach using a quasi-experimental design with a one-group pretest-posttest design. The sample consists of 29 students from Class X TO 4. Data collection utilized a multiple-choice test that had been validated for both validity and reliability. The validity test results showed that 22 items were valid while 3 items were invalid; the Cronbach’s Alpha result was 0.893, indicating that the instrument was highly reliable. The research results showed an increase in the students’ average score from 70.34 initially to 84.7 on the post-test. Furthermore, the normality test results showed that the data were normally distributed, with significance values of 0.503 for the pre-test and 0.088 for the post-test. Additionally, the paired-sample t-test yielded a significance value of <0.001, indicating a significant difference between the pre-test and post-test results. Thus, the Canva-based animated video medium was proven effective in improving learning outcomes for the subject matter
Variasi Diameter Intake Manifold dan Throttle Body terhadap Performa Mesin 155 CC: Variation of Intake Manifold and Throttle Body Diameter on 155 CC Engine Performance I Putu Wahyu Widi Astika; Ida Bagus Putu Purwadnyana; Kadek Rihendra Dantes
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.115798

Abstract

This study aimed to analyze the effect of intake manifold and throttle body diameter variations on engine performance and fuel consumption of a 2019 Yamaha NMAX 155 cc motorcycle using Pertamax 98 fuel. The diameter variations tested consisted of the standard 28 mm, a modified 30 mm, and a modified 32 mm. A quantitative experimental method was employed, with torque and power measured using a dynamometer, while fuel consumption was determined using the volumetric method. Testing was conducted within an engine speed range of 3,000–6,000 rpm. The results showed that variations in intake manifold and throttle body diameters significantly affected engine performance and fuel consumption characteristics. The 32 mm diameter produced the highest performance, achieving a maximum torque of 21.88 Nm at 3,500 rpm and a maximum power output of 11.5 HP at 4,500 rpm. However, this configuration also resulted in the highest fuel consumption, reaching 0.661 kg/h at 6,000 rpm. Meanwhile, the 30 mm diameter provided a balanced improvement in performance while maintaining relatively good fuel efficiency. The use of Pertamax 98 supported a more optimal combustion process and helped reduce engine knocking.
Analisis Sistem Kendali Elektronik Pada Prototipe Excavator Model Crawler: Analysis of Electronic Control System in a Crawler Excavator Prototype Wiliam Irawan; Sriyono; Tatang Permana
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.115816

Abstract

This study analyzes the electronic control system of a crawler-type excavator prototype using an A2212 1400 kV brushless DC motor as the hydraulic pump prime mover, a HotRC HT-10A transmitter-receiver set as the remote interface, a 7.4 V 2200 mAh battery as the energy source, Tower Pro MG995 servo motors as hydraulic valve actuators, and Arduino Uno and Nano boards as the central controllers. The objective is to evaluate whether a low-cost radio-control and microcontroller architecture can provide stable command conversion, safe pump actuation, and repeatable valve positioning for a bench-scale hydraulic excavator model. The method combined PWM signal characterization, servo-angle calibration, pump power analysis, battery-runtime estimation, and response testing using a representative prototype dataset that must be validated with direct laboratory measurements before final publication. The results indicate that the receiver signal remained centered at 1503 ± 5.2 microseconds, the valve actuation error was 1.08 degrees on average, and the pump reached an estimated 8070 rpm under full throttle with 10.7 A current draw and 0.75 MPa hydraulic pressure. The mixed-duty operating duration was estimated at 20.6 min, while 14-16 min is recommended for safe battery margin. The proposed system is feasible for educational prototype development but requires pressure feedback, current limiting, and closed-loop valve control for higher reliability.
A Analisis Pembebanan Statis pada Chassis Electric Vehicle Race Car Menggunakan Metode FEA pada Autodesk Inventor: - Danendra Rizky Ramadhan; Yusep Sukrawan; Tatang Permana; Gilang Ciptadi Mahatkarsa; Ibnu Mubarak
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.115994

Abstract

The rapid advancement of electric vehicle technology has created a growing necessity for chassis structures that are robust, weight-efficient, and engineered to meet stringent safety standards in order to optimize the performance of eco-friendly racing vehicles. This research was conducted to assess the structural integrity of the chassis in an Electric Vehicle Race Car when subjected to static load conditions. The analytical approach adopted in this study is the Finite Element Analysis (FEA) method, utilizing Autodesk Inventor software as the primary simulation tool. Two distinct load scenarios were applied during testing, specifically 70 kg and 100 kg, to obtain output values of Von Mises Stress, Displacement, and Safety Factor. The simulation outcomes revealed that both the Von Mises Stress and Displacement values remained within the permissible safety threshold of the selected material, while the Safety Factor value successfully surpassed the minimum design benchmark. Consequently, the chassis developed in this study is deemed to possess sufficient structural strength and rigidity, confirming its suitability for implementation in electric-powered racing vehicles.
Peningkatan Aktivitas dan Hasil Belajar Proyeksi Ortogonal Melalui Model Problem Based Learning Berbantuan 3D Printing: Improving Students’ Activity and Learning Outcomes in Orthogonal Projection Through 3D Printing-Assisted Problem-Based Learning Mohammad Dani Subarna; Yusep Sukrawan; Ramdhani
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.116937

Abstract

This research was motivated by the students' lack of active participation and low cognitive learning outcomes in understanding Orthogonal Projection concepts. The root of the problem stemmed from the dominance of conventional instructional strategies that neglected the use of physical visual aids. Therefore, this study was conducted to determine the effectiveness of implementing Problem-Based Learning (PBL) integrated with 3D Printing technology in improving students' active participation and learning outcomes. The research applied a Classroom Action Research (CAR) approach adapting the Kemmis and McTaggart model, executed in two cycles. The participants included 40 students of class X TO 2 at SMKN 1 Kota Sukabumi. Data were analyzed using quantitative descriptive techniques, percentage calculations, and the Normalized Gain (N-Gain) metric. The findings demonstrated consistent positive progress. Classical student learning participation gradually increased from 64% (Poor category) in the pre-cycle to 89% (Active category) in Cycle I, and reached 93.16% (Very Active category) at the end of the intervention in Cycle II. This success was accompanied by an increase in cognitive achievement, where the classical completeness rate successfully reached 58% in Cycle I from an initial 13%, and culminated at 85% (Good category) in the second cycle. The N-Gain analysis confirmed the effectiveness of the intervention with a score of 0.74, categorized as high. In conclusion, the application of the 3D Printing-assisted PBL model significantly resolved students' passivity in the classroom and improved their learning outcomes in Orthogonal Projection materials.
Analisis Waktu Respon Hidrolik pada Simulator Rough Terrain Crane Berbasis 3D Printing: Hydraulic Response Time Analysis on a 3D Printing-Based Rough Terrain Crane Simulator Muhamad Safta Aji; Sriyono; Tatang Permana
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.116976

Abstract

This study aims to analyze the hydraulic response time of a 3D printing-based Rough Terrain Crane simulator developed as a learning medium in Automotive Engineering Education. The simulator was designed to represent the working principles of a hydraulic system in a telescopic boom mechanism, allowing students to directly observe the operation of hydraulic actuators. The research employed an experimental method by applying load variations to the telescopic boom and measuring the system response time from the operation of the directional control valve until the hydraulic cylinder began to move. The applied load variations were 0 g, 100 g, 200 g, 300 g, and 400 g, with three repetitions for each test. The collected data were analyzed using descriptive quantitative analysis based on the average response time for each load variation. The results showed that the hydraulic system response time increased as the applied load increased. The average response time was 1.84 seconds under no-load conditions and increased to 3.31 seconds at a load of 400 g. These findings indicate that greater loads require higher hydraulic force and pressure to move the telescopic boom, resulting in longer actuator response times. The developed simulator successfully demonstrated the fundamental characteristics of hydraulic systems and has potential as an interactive learning medium for teaching heavy equipment hydraulic systems.

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