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INDONESIA
JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN
Published by Universitas Negeri Yogyakarta
ISSN : 25487590     EISSN : 25487590     DOI : -
Core Subject : Education, Social, Engineering,
Education Mechanical Engineering Social Sciences
Jurnal Dinamika Vokasional Teknik Mesin (JDVTM) is published by the Department of Mechanical Engineering Education, Faculty of Engineering, State University of Yogyakarta. The journal is published twice a year in April and October. Each publication contains articles comprising high quality theoretical and empirical original research papers, review papers, and literature reviews. The scope of study of this journal includes mechanical engineering education, technology and vocational education, learning and curriculum development, learning method development, and learning media. All of the fields study, particularly in mechanical engineering vocational and education. The articles submitted should be attended to the particular topics above.
Arjuna Subject : -
Articles 201 Documents
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A MODEL FOR DEVELOPING STUDENTS CHARACTER IN VOCATIONAL HIGH SCHOOLS IN BANTEN Atep Iman; Iwan Ridwan; Kurniawan Putra Yudha
Jurnal Dinamika Vokasional Teknik Mesin Vol. 10 No. 2 (2025)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aimed to develop and implement an effective character development model for Vocational High School (SMK) students in Banten Province, Indonesia. Recognizing the importance of character alongside technical skills in producing well-rounded graduates, a mixed-methods approach was employed to gather comprehensive data. Qualitative data was obtained through interviews, observations, and document analysis, while quantitative data was collected through student questionnaires. The findings revealed that SMK students value discipline, responsibility, honesty, cooperation, and mutual cooperation. However, current character development programs in schools are often fragmented and not fully integrated into daily learning. To address this, a three-component character development model was designed: 1) integrating character values into the curriculum, 2) strengthening extracurricular programs, and 3) providing personalized student support. Implementation of the model demonstrated positive outcomes, including improved student knowledge, attitudes, and behaviors related to the targeted character values. Additionally, students reported increased motivation, better social relationships, and enhanced workforce readiness. This study underscores the importance of prioritizing character development in SMK education. Schools should integrate character values into all aspects of school life, equip teachers with the necessary competencies, and foster collaboration among schools, families, and the community to create a conducive environment for student character growth.
ERGO-MECHANICAL APPROACH OF DESIGNING TRUCK TIRE INSTALLATION TOOL FOR SMALL WORKSHOPS Gede Bawa Susana; I Gusti Agung Ketut Chatur Adhi Wirya Aryadi; Hafiz Jefry
Jurnal Dinamika Vokasional Teknik Mesin Vol. 11 No. 1 (2026)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v11i1.93875

Abstract

Manual truck tire installation can cause musculoskeletal disorders due to unnatural postures and high physical demands. This study aims to assess the prevalence of musculoskeletal complaints among truck tire installation workers and to design a truck tire installation aid based on an ergo-mechanical approach. The level of musculoskeletal complaints was measured using the Nordic Body Map questionnaire with a four-point Likert scale in five workers, before and after work. The measurement results showed an average musculoskeletal complaint score of 54.2 after work, placing it in the moderate-risk category and requiring corrective action. Based on these findings, a truck tire installation aid was designed using worker anthropometric data, employing a 5th-percentile approach to ensure the safety and comfort of workers with small body sizes. The body dimensions used include standing elbow height, palm length, knee height, foot length, and horizontal standing reach. The results of translating anthropometric data into technical designs indicate that the proposed assistive device has the potential to improve work posture, reduce physical load, and lower the risk of musculoskeletal disorders. Although this research remains limited to the conceptual design stage and lacks prototype testing, the results can serve as a basis for developing and evaluating ergonomic assistive devices in real work environments.
ANALYZING THE EFFECTS OF WATER, AIR, AND SALTWATER COOLANTS ON THE TENSILE STRENGTH & HARDNESS OF AISI 1045 STEEL WELDED WITH METAL INERT GAS Muhammad Hariz Dedy Sayogi; Jefri Aldo; Lia Agustina; I Made Susanto
Jurnal Dinamika Vokasional Teknik Mesin Vol. 11 No. 1 (2026)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v11i1.96353

Abstract

This study aims to analyze the effect of cooling media variations (air, water, and salt water) on the mechanical properties of AISI 1045 medium carbon steel welded using the Metal Inert Gas (MIG) method. The experimental method was used with steel specimens in the form of plates which were then tested for tensile strength in accordance with the ASTM E8 standard and tested for hardness. The results of the study show that cooling with air produces the highest tensile strength (35.59 Kgf/mm²) due to the formation of ductile pearlite and ferrite microstructures. Cooling with water produced moderate tensile strength (34.42 Kgf/mm²), while cooling with salt water produced the lowest tensile strength (22.34 Kgf/mm²) due to the formation of hard but brittle martensite. Conversely, the highest hardness value was obtained with saltwater cooling (386.20 HV in the HAZ), followed by water, and the lowest with air. In general, slow cooling increases ductility and tensile strength, while rapid cooling increases hardness but decreases ductility. These findings emphasize the importance of selecting the appropriate cooling medium according to application requirements, whether the emphasis is on tensile strength or material hardness.
EXPERIMENTAL STUDY ON THE EFFECT OF PV TILT ANGLE ON MINI SOLAR POWER BANK PERFORMANCE Putra Andi Kolala; Lathifa Putri Afisna; Wuwuh Saminto Wibowo; Aditya Septian Putra; Antonio Carlo; Fajar Bagas Pambayun; Fajar Nur Huda
Jurnal Dinamika Vokasional Teknik Mesin Vol. 11 No. 1 (2026)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v11i1.96605

Abstract

Solar panels are devices designed to convert solar energy into electrical energy through the photovoltaic (PV) effect, offering a sustainable solution for portable power needs. This study investigates the effect of solar panel tilt angles on the performance of a mini solar cell power bank in Institut Teknologi Sumatera, South Lampung, Indonesia. A 2.5 W monocrystalline silicon panel was tested at tilt angles of 15°, 30°, and 45°. Data on current, voltage, temperature, and power were collected at 30-minute intervals from 09:00 to 15:00 WIB over three separate clear-sky measurement days. The results indicate that the 15° tilt angle produced the highest average current (38.39 mA), voltage (4.08 V), and power (0.162 W). The estimated charging time for a 3000 mAh battery was 93.77 hours (15°), 116.13 hours (30°), and 138.04 hours (45°). The 15° tilt is the optimal configuration for portable solar power banks in this tropical region.
GTAW WELDING REPAIR QUALITY ANALYSIS ON SPARGER HEADER WITH LIQUID PENETRANT AND LEAK TEST Devina Hermawati; Moh Fawaid
Jurnal Dinamika Vokasional Teknik Mesin Vol. 11 No. 1 (2026)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v11i1.97008

Abstract

Damage to sparger headers, such as material thinning and leakage, can reduce system reliability and disrupt industrial operations. Repair welding using Gas Tungsten Arc Welding (GTAW) is commonly applied; however, its quality must be verified to ensure safe reuse. This study evaluates the quality of GTAW-based repair welding on a corrosion-damaged sparger header using Non-Destructive Testing (NDT), namely Liquid Penetrant Testing (LPT) for surface defect detection and leak testing for sealing performance under pressurized conditions. Unlike previous studies that focus on newly fabricated welds under laboratory conditions, this study evaluates repair welding performance on an actual industrial component affected by corrosion-induced wall thinning. The combination of surface inspection using LPT and functional validation through leak testing under real operating conditions provides a more comprehensive assessment of repair quality. Results show no surface indications in LPT and no leakage during testing at 1.2 kg/cm² for 37 minutes. These findings indicate that the repaired weld meets acceptance criteria and is suitable for reuse. The results provide a reliable basis for assessing repair welding quality in industrial components.
MULTIDISCIPLINARY APPROACH STRATEGIES IN ELECTROPNEUMATICS COURSE LEARNING IN THE METAVERSE ERA Achmad Romadin; Andi Muhammad Irfan; Fahri Anwar Anwar; muhammad Hasim S; muhammad Taufiq Arfah
Jurnal Dinamika Vokasional Teknik Mesin Vol. 11 No. 1 (2026)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v11i1.90889

Abstract

A multidisciplinary approach has become an important strategy in vocational education to prepare graduates who are adaptable to the demands of 21st-century industry. This study offers a novel contribution by developing a multidisciplinary vocational learning model that integrates Project-Based Learning (PjBL) and Contextual Teaching and Learning (CTL) within a metaverse-oriented learning environment. The model connects real industrial automation problems, collaborative project activities, contextual learning experiences, and digital simulation to enhance students’ technical competence, critical thinking, collaboration, creativity, and professional character. This article examines the implementation and effectiveness of the multidisciplinary strategy in the Electropneumatics course. The research employed a qualitative case study approach, with data collected through interviews, observations, and documentation. The findings indicate that the integration of PjBL and CTL provides meaningful learning experiences by linking theoretical concepts with real industrial applications and digital simulation environments relevant to the Metaverse era. This approach not only improves technical learning outcomes but also fosters responsibility, discipline, teamwork, adaptability, and problem-solving skills. However, its implementation faces several challenges, including human resource readiness, cross-disciplinary curriculum alignment, lecturer competence in digital learning design, and adequate access to digital infrastructure. Therefore, continuous evaluation and synergy among academia, industry, and government are needed to support sustainable implementation. Overall, this multidisciplinary learning model contributes to the development of innovative, contextual, and industry-relevant vocational education, particularly in preparing excellent workers in the field of industrial automation.  
EXPLORING THE CONTRIBUTION OF THE FOUR PILLARS OF PARTNERSHIP TO THE IMPLEMENTATION OF WORK-BASED LEARNING IN VOCATIONAL EDUCATION Ardani Ahsanul Fakhri; BZ. Septeiyawan Abdullah; Muhammad Ibnu Rusydi
Jurnal Dinamika Vokasional Teknik Mesin Vol. 11 No. 1 (2026)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v11i1.97719

Abstract

This study analyzes the influence of the four pillars of partnership on the success of WBL as well as the differences in perceptions between teachers, students, and industry in Tegal Regency. The method used in this study is quantitative with data analysis using multiple linear regression and one-way ANOVA. The results of the study show that the four pillars are simultaneously influential. Partially, Confidence (p = 0.002; Beta = 0.415) and Profit (p = 0.014; Beta = 0.310) is significant, while Need (p = 0.065) and Strength (p = 0.254) are not. ANOVA revealed significant differences in perceptions between groups (p = 0.008), with teachers being more optimistic than industry (mean difference = 4.200; p = 0.012). The results of the analysis show that the success of WBL is not enough to rely solely on MoUs or facilities, but is highly dependent on industry trust and mutual benefits. Schools need to build the character and safety of students' work and create a clear benefit-sharing scheme.
ANALYSIS OF MILD STEEL CORROSION RATE BASED ON VARIATIONS OF ELECTRODES AND CORROSION MEDIA IN SMAW WELDING Jefri Aldo
Jurnal Dinamika Vokasional Teknik Mesin Vol. 11 No. 1 (2026)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v11i1.97908

Abstract

This study aims to determine the effect of electrode variations on mild steel plates using variations in corrosive environments. The method used in this study is experimental. Data collection techniques are carried out by documenting workpieces that have been welded using variations of electrodes dipped in variations of corrosion media for 15 days and observed using a digital microscope with a magnification of 50X. The results of this study show that workpieces that have been welded SMAW using variations of electrodes E6010, E6013, E7018 and using corrosive solutions of seawater and rainwater to be able to see the results of the development of the corrosion rate that occurs in the workpiece, which experiences a slow corrosion rate is found in the E6013 electrode using rainwater due to the strong current in the place when welding gets good results, and it is difficult for the corrosion rate to occur. While the type of E6010 electrode immersed in seawater solution shows a very rapid corrosion rate compared to other electrodes. The initial weight of the workpiece is 215.77 grams, and after 15 days of immersion, the weight of the workpiece decreases to 213.88 grams, resulting in a weight loss of 1.89 grams.
MANAGEMENT TRANSFORMATION OF WARGA VOCATIONAL SCHOOL TOWARD A CENTER OF EXCELLENCE VOCATIONAL SCHOOL: A CASE STUDY OF THE PROCESS, CHANGES, AND IMPACTS ON THE TEACHING FACTORY Alvian Arsennio Putra; Valiant Lukad Perdana Sutrisno
Jurnal Dinamika Vokasional Teknik Mesin Vol. 11 No. 1 (2026)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v11i1.97758

Abstract

This study aims to reveal the transformation process of the management of SMK Warga Surakarta in achieving the status of SMK Center of Excellence (SMK PK) and to find out the changes and impact of the SMK PK program on the implementation of the Teaching Factory (TEFA). The research uses a qualitative descriptive approach with a case study method. Data collection was carried out through interviews and documentation involving school principals, heads of the TEFA program, and teachers. Data analysis is carried out through the stages of data reduction, data presentation, and conclusion drawing with triangulation techniques to ensure the validity of the data. The results of the study show that the transformation towards SMK PK is carried out in stages through the process of program submission, selection, verification, and program implementation. In this process, the school implements management strategies in the form of synchronization with the industrial world, strengthening TEFA learning, and optimizing human resources and school facilities. The implementation of the SMK PK program provides changes to the implementation of TEFA, characterized by a more structured learning system, more organized administrative and managerial systems, improvements in facilities and infrastructure, and more student-centered learning methods. In addition, the PK Vocational School program also has an impact on improving student competence, teacher quality, learning quality, and increasing cooperation and industry trust in schools. This research contributes to enriching the study of the transformation of school management towards a Center of Excellence Vocational School and shows that strengthening TEFA through the PK Vocational School program can be an effective strategy in improving the quality of vocational education in line with industry needs.
CORROSION RATE ANALYSIS AND REMAINING LIFE ASSESSMENT OF ATMOSPHERIC HYDROCARBON STORAGE TANK IN PETROLEUM PROCESSING FACILITIES Emirsyach Marchio Zhafiri Rahman; Rahmat Widodo; Virda Hersy Lutviana Saputri
Jurnal Dinamika Vokasional Teknik Mesin Vol. 11 No. 1 (2026)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v11i1.98633

Abstract

This study was conducted to analyze the corrosion rate and Remaining Life Assessment (RLA) of an atmospheric storage tank in a petroleum processing facility using Ultrasonic Thickness Meter (UTM) measurement data. The analysis was complemented by a Root Cause Analysis (RCA) employing the Ishikawa Fishbone Diagram approach and a Risk-Based Inspection (RBI) evaluation to provide optimal inspection recommendations. Based on the calculation results, the tank has been in service since 1984; however, its structural condition remains within an acceptable and safe operating range. The RCA results indicate that corrosion on the tank shell is caused by a combination of technical and non-technical factors. The calculated risk level places the tank in the medium-risk category. Overall, the structural integrity of the tank can still be considered suitable for continued operation.

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