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Development of Wire Cable Drive for Kioriz SP850A 4WD Engine to Improve Agricultural Productivity Muhammad Ilham Abdillah; Setuju Setuju; Widodo Widodo; Alfat Khaharsyah; Heri Kurnianta
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.35972

This study aims to develop an alternative Bowden cable for the Kioritz SP850A 4WD agricultural machine to address issues of high cost, long delivery times, and limited availability of original equipment manufacturer (OEM) cables. The research adopted a Research and Development (R&D) design, which emphasizes systematic product development through stages of needs identification, design, prototype fabrication, testing, and evaluation. Within the testing and evaluation stages, experimental research methods were applied to assess the mechanical and economic performance of the developed cable. The alternative cable was manufactured using SAE 1065 steel subjected to tempering heat treatments at 300°C, 400°C, and 500°C. Mechanical testing included tensile strength, hardness, elongation, and fatigue life, supported by statistical analysis using ANOVA and regression, as well as economic analysis. The results indicate that tempering temperature significantly influences mechanical properties, with the 300°C condition producing the highest tensile strength (1848.7 MPa) but increased brittleness, while the 400°C condition achieved the most balanced performance, including tensile strength of 1651.5 MPa, hardness of 50.2 HRC, and fatigue life comparable to OEM cables. Economic evaluation demonstrated cost savings of ¥295,850 per case, an ROI of 639.6%, and a payback period of 1.7 months. These findings confirm that the developed alternative Bowden cable is both technically and economically feasible, offering a practical solution to reduce machine downtime and enhance agricultural productivity.

Evaluation of Simulation Based on the Job Training for Industrial Chemical Engineering Students at SMKN 2 Cilegon Duwi Lestari; Moh. Fawaid; Suhendar Suhendar
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.36399

This study evaluates the simulation-based On the Job Training (OJT) program at SMK Negeri 2 Cilegon as an alternative to Field Work Practice (PKL), developed to address the mismatch between vocational curricula and industry needs as well as the limited availability of industrial internship placements. The evaluation employs the CIPPO model, and data were collected through observations, semi-structured interviews, Focus Group Discussions (FGDs), and document review, with primary and secondary data analyzed using qualitative data analysis techniques. The findings indicate that the context of the OJT program is highly aligned with industry needs. The input aspect is supported by qualified teachers, industry mentors, and adequate student readiness. The process is implemented through structured stages, resulting in products such as equipment SOPs, student reports, and competency certificates, while the outcomes demonstrate improvements in students’ technical competencies, interpersonal skills, and overall work readiness.

Development of E-LKPD (Electronic Leaner Worksheet) Based on Project Based Learning for Lathe Machining Engineering Subjects Adi Firman Romadhon; Eddy Sutadji
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.36361

This study aims to develop and test the feasibility of Project Based Learning (PjBL)-based E-LKPD in the subject of Lathe Machining to improve the quality of practice of grade 11 vocational school students. The main problem raised is the low motivation and limitations of conventional print media in supporting interactive learning. Using the Research and Development (R&D) method, data was collected through expert validation and response questionnaires for 34 students and teachers. The results of the study show that E-LKPD is very feasible and valid with an average percentage of 80.88% (material) and 77.27% (media). This product is considered very complete (90.00%) and practical (85.48%) as a learning resource. The implementation of media has been proven to significantly increase students' learning motivation (90.20%) and provide convenience for teachers in delivering material (90.00%). It was concluded that PjBL-based E-LKPD is effectively used to optimize the technical learning process in vocational schools. Keywords: Interactive E-LKPD, Project Based Learning, Lathe Machining Techniques, Quality of Vocational Practice Practices, Digital Learning Media.

Experiment CBL to Strengthen Four OBE Literacies in Automotive Engineering Education: Analysis of the Kirkpatrick Model Henry Iskandar; Selamat Triono; Siti Ulgari; Safri Gunawan; Dwiki Muda Yulanto; Nur Basuki; Lisyanto Lisyanto
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.35465

Graduate learning outcomes should include the current interdisciplinary attitudes, knowledge, and skills needed in the era of technological transformation in the automotive sector. Conducting a CBL model experiment supported by simulation teaching aids to strengthen the 4 four OBE literacies in the automotive control system course. The CBL model includes (engage, investigate, and act) to see perception, knowledge, skills (hard skills and soft skills), satisfaction, and literacy, with Kirkpatrick obtained by using questionnaires and test items conducted by observation methods and written tests. The CBL model, supported by simulation teaching aids and evaluated using the Kirkpatrick framework in automotive control system learning. It is proven that OBE literacy achieves relatively high scores in all four literacy dimensions, with the highest scores in technology literacy (80.4) and data literacy (77.1), followed by human literacy (75.7) and language literacy (73.3). This shows that the four OBE literacies are integrated in higher education.

Design and Comparative Analysis of the REV Team Electric Car Chassis with Material Variations Using FEM Ahmad Zahrul Firdaus; Marsono Marsono
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.35858

The demand for high-performance and energy-efficient electric vehicles in competitions such as the Kompetisi Mobil Listrik Indonesia (KMLI) and Formula SAE necessitates chassis designs that are lightweight, rigid, and safe. This study aims to optimize chassis performance through a comparative analysis of Aluminum A6061-T4, Aluminum A6061-T6, and AISI 4130 using the Finite Element Method (FEM). The research method has several main stages, with FEM process included pre-processing, solution, and post-processing. A 3D chassis was modeled in SolidWorks 2023 and simulated in ANSYS 2024 R1 under static loading. Results show that A6061-T6 provides the best performance with 0.528 mm deformation and a safety factor of 6.114. In addition, mass calculation shows that aluminum chassis (14.967 kg) is significantly lighter than AISI 4130 (43.514 kg), achieving a weight reduction of approximately 65.6%. The findings suggest that A6061-T6 offers an optimal combination of lightweight properties and structural integrity for competition electric vehicle chassis.

Ballistic Performance of Bulletproof Vests Reinforced with Hybrid Composites of Eichhornia Fiber and Kevlar Dupont Armortex Fajar Paundra; Ahmad Tito; Abdul Muhyi; Devia Gahana Cindi Alfian; Farid Nanda Syanur; Fajar Perdana Nurulloh; Ariyo Nurachman Satiya Permata; Fattah Maulana; Akhmad Nurdin; Sri Hastuti
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.35784

The fiber stacking sequence in hybrid composites of Eichhornia and Kevlar Dupont Armortex significantly influences ballistic resistance. This study aimed to investigate the effect of different stacking sequences of Eichhornia/Kevlar hybrid composites on ballistic performance. The materials employed were woven Eichhornia fibers, Kevlar Dupont Armortex, and polyester resin. The composites were fabricated using the vacuum bagging method at 14 psi for 24 h, followed by curing at 80 °C for 60 min. Two stacking configurations were examined: Armortex Eichhornia Armortex (AEA) and Eichhornia Armortex Eichhornia (EAE). Ballistic testing was conducted in accordance with NIJ 0101-07, referring to ballistic threat level NIJ 0123.00 (NIJ HG1). The results revealed that the fabricated hybrid composites were unable to resist MU1-TJ 9 × 19 mm bullets fired from a Tanfoglio Stock III 919 pistol with a kinetic energy of 885 J, leaving impact marks with varying diameters depending on the stacking configuration. Further observations indicated that the hybrid composites experienced fiber displacement leading to crack formation, fibrillation of constituent fibers, and interlayer delamination.

Assessing the Implementation of First-Party Professional Certification (LSP-P1) Via Industry Collaboration: An Employability Strategy for Motorcycle Automotive TVET Graduates in West Java Muhamad Kamaludin; Yadi Hikmah Setiana; Tatang Mulyana
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.36019

This study aims are (1) evaluate the implementation of the UKK of the LSP-P1 certification scheme in Vocational High Schools, (2) determine the involvement of industry in the UKK implementation process, (3) determine the impact of collaboration between Vocational High Schools and industry in the implementation of UKK on increasing the employability of TVET graduates, so that strategic recommendations are generated for Vocational High Schools, LSP-P1, and industry in increasing the effectiveness of UKK implementation and increasing the employability of TVET graduates. This study uses an evaluation research method using the CIPP model, a descriptive evaluative approach that incorporates survey techniques and in-depth interviews. Respondents include the head of the expertise program, the head of the TUK, LSP-P1 assessors, representatives of partner industries, and alumni who have participated in the UKK. Data are analyzed quantitatively and qualitatively. This study was conducted in West Java at six TBSM Vocational High Schools. The results show that the LSP-P1 UKK is relevant to the needs of the automotive industry, but is not fully adaptive to the development of EV technology. Assessors and test materials are quite appropriate, but modern facilities and competency updates are still obstacles. The implementation process meets standards, but external oversight from the industry needs to be strengthened. Certified graduates have higher employability than non-certified graduates, but their readiness for new technologies remains limited. Therefore, the UKK (LSP-P1) certification scheme has proven effective in increasing the competitiveness of TBSM vocational high school graduates in West Java. However, it requires curriculum innovation, strengthening of facilities, and more intensive involvement from industry at every stage of implementation, including assessor criteria, competency test materials, assessment standards, and recognition of competency certificates.

Parallel Hybrid Powertrain Design for Honda BeAT 110 eSP Scooter to Improve Energy Efficiency and Reduce Emissions Virgawan Adrian Noes; Muhammad Hamid Ramdhan Nur; Muhammad Nurtanto
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.35619

The increasing demand for energy efficiency and emission reduction in urban transportation requires innovative powertrain solutions. This study aims to design and analyze a parallel hybrid powertrain system for the Honda BeAT 110 eSP Scooter. The methodology involves integrating a 3000W BLDC Hub motor on a custom-made 6mm steel bracket arm, coupled with a 60V 27Ah lithium battery, without altering the main frame structure. Performance testing was conducted using a chassis dynamometer and on-road testing to measure fuel consumption, torque, and emissions. The results demonstrate that the hybrid system significantly improves vehicle performance. Fuel efficiency increased to 92 km per charge/refuel combination (compared to 38 km in standard mode). The electric motor produced a peak torque of 81.93 Nm, which is three times higher than the conventional engine's torque of 25.48 Nm. Furthermore, exhaust emissions (CO and HC) were reduced to 0% when operating in electric mode. Despite a 24 kg weight increase, the center of gravity shift remained within safe limits. This research concludes that a modular parallel hybrid system is a viable and efficient solution for urban scooters.

Mechanical Engineering Students' Perceptions and Experiences with Team-Based Project Learning: a Comprehensive Investigation Hendri Sulistyo; Agus Solehudin; Mumu Komaro
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.37461

Team-Based Project (TBP) learning has gained prominence in engineering education as a means to develop both technical competencies and professional skills through collaborative engagement. Despite extensive documentation of TBP outcomes, limited research has explored the qualitatively different ways in which students understand and experience TBP, particularly within the distinct context of mechanical engineering education programs that integrate technical and pedagogical preparation. This study employs a phenomenographic research design to investigate mechanical engineering education students' qualitatively different ways of experiencing TBP. Data were collected through semi-structured interviews with 63 students at various academic stages across two universities in Indonesia. Analysis followed phenomenographic principles, identifying categories of description that capture qualitative variation in students' understanding, rather than reporting frequency distributions. Findings reveal four qualitatively distinct categories of description: (1) TBP as task completion, (2) TBP as collaborative skill-building, (3) TBP as professional preparation, and (4) TBP as transformative learning. These categories form an outcome space in which more sophisticated conceptions encompass awareness of collaborative processes, professional relevance, and critical reflection. Persistent structural challenges particularly inequitable workload distribution and coordination difficulties feature differently across categories. The study contributes context-specific insights into how TBP is understood in a technically and pedagogically hybrid engineering program, with implications for curriculum design, team formation, and instructor support strategies.

Students’ Teaching Interest and Their Microteaching Learning Outcomes in Automotive Vocational Education Bintha Ustafiano; Mentari Arisyid Mulyadi; Yolana Nursyafti; Fajar Maulana
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.35315

This study aims to determine the relationship between the interest in becoming a teacher and the microteaching learning outcomes of students in the Vocational Education Program in Automotive Technology at Universitas Lancang Kuning. This research uses a quantitative approach with a correlational method. The sample consisted of 42 students who had completed the microteaching course, and data were collected through an interest questionnaire and academic performance scores. Data analysis was conducted using the Pearson Product Moment correlation test with the help of SPSS. The results showed a strong and significant relationship between the interest in becoming a teacher and microteaching learning outcomes, with a correlation coefficient of 0.874 and a coefficient of determination of 76.4%. These findings indicate that a high interest in the teaching profession can positively contribute to students’ academic achievement. Therefore, fostering interest in the teaching profession should be a focus in learning strategies and career development for vocational education students.

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Contact Name
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Contact Email
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Journal Mail Official
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Location
Kab. serang,

Banten

INDONESIA