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All Journal VANOS Journal of Mechanical Engineering Education INVOTEK: Jurnal Inovasi Vokasional dan Teknologi AEEJ : Journal of Automotive Engineering and Vocational Education IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Rahma Doni
Universitas Negeri Medan
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Implementation of Project Based Learning for Cognitive and Psychomotor Students in the Basic of Workshop Technology Course Welding Sub-competency in the Automotive Engineering Study Program Rahma Doni; Arif Algifari; Muhammad Irvan
invotek Vol 22 No 3 (2022): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v22i3.1073

Abstract

The higher education curriculum adopts project-based learning (PjBL) method that emphasizes the provision of knowledge with the problem solving in an organized work project within study group. This is such a solution for the problems of current conventional learning method implementation that made low enthusiasm and slow understanding student especially for Automotive Engineering student in having welding practice in The Basic Workshop Technology Course. By using experimental method in this research to compare conventional learning and PjBL method toward twenty Automotive Engineering students to evaluate cognitive and psychomotor aspect. On the steps, the lecturer starts with provides theoretical enrichment and end with welding practice. To find out the effect of implementing this project-based learning, lecturer divides the class in two study groups by differentiating learning methods, namely the group with conventional learning and the group with PjBL learning. Comparison is made between conventional learning and PjBL learning with projects processed by statistical interpretation. The results of the study showed that there was a significant effect on the results of the psychomotor evaluation of students, but not too significant for the cognitive evaluation results. Based on this research, there is a prove that PjBL is good enough to increase student’s abilities in welding practice as psychomotor representation increment.
Validation Instruments for the Development of Cooperative Module Based On Student Facilitator and Explaining Type in Courses Powertrain System Rahma Doni; Wagino Wagino; M Nasir; Wakhinuddin S; Suhendar Suhendar
VANOS Journal of Mechanical Engineering Education Vol 7, No 2 (2022)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v7i2.16688

Abstract

The lack of maximum understanding of students, especially on powertrain system subjects marked by low student learning outcomes, allegedly occurs because the available teaching materials have not been able to facilitate students to be able to learn independently and thoroughly and learning is still focused on educators as the main source of teaching materials. The main reason the researcher conducted this development research. This study aims to determine and test whether the module developed is valid or not to be used as teaching material in the powertrain system course. This development research uses a 4D model (Define, Design, Develop and Disseminate). The subjects of this study were students of Heavy Equipment Engineering at the Sawahlunto State Community Academy. The type of data is primary data where the data is provided by expert lecturers and students. The data collection instrument is in the form of a questionnaire. The data analysis technique used is descriptive data analysis technique, namely by describing the validity of the module based on this type of Student Facilitator and Explaining Cooperative. After doing the research, it was found that the cooperative module of the Student Facilitator and Explaining type was declared valid in the material aspect with a validity value of 85% and was declared valid in the format aspect with a validity value of 83%.  Based on the findings of this study, it was concluded that the Student Facilitator And Explaining Cooperative-Based module was valid to be used as a learning medium in the Powertrain System course.
Pengaruh Penggunaan Variasi Bahan Bakar dan Beban Kelistrikan Terhadap Kinerja Engine Diesel Gunawan, Safri; Mulia, Mulia; Doni, Rahma; Gulo, Yanuardi; Pratama, Muhammad Reza; Sitohang, Yodi; Zan'nah, Sofiya Vari; Affandi, Dery
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.196

Abstract

The global energy crisis has driven efforts to find alternative fuels that are efficient and environmentally friendly. One focus is testing the performance of diesel engines against variations in fuel. This study aims to analyse the effect of diesel fuel types, including Bio Solar, Dexlite, and Pertamina Dex, with cetane numbers of 48, 51, and 53, respectively, on diesel engine performance in terms of power, torque and specific fuel consumption parameters at various levels of electrical load. The method used is an experiment involving a graded electrical load test ranging from 300 to 1500 Watts. Data were collected under stationary conditions at 1500 rpm using instruments such as voltmeters, ammeters, tachometers, and fuel burettes. The results show that Pertamina Dex produces the highest power at peak load due to its high cetane number, while Bio Solar provides the highest torque due to a longer combustion delay. The highest specific fuel consumption occurs in Pertamina Dex at low loads, while Bio Solar is more efficient at low load conditions.
Pengaruh Penggunaan Variasi Bahan Bakar dan Beban Kelistrikan Terhadap Kinerja Engine Diesel Gunawan, Safri; Mulia, Mulia; Doni, Rahma; Gulo, Yanuardi; Pratama, Muhammad Reza; Sitohang, Yodi; Zan'nah, Sofiya Vari; Affandi, Dery
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 1 (2025): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i1.196

Abstract

The global energy crisis has driven efforts to find alternative fuels that are efficient and environmentally friendly. One focus is testing the performance of diesel engines against variations in fuel. This study aims to analyse the effect of diesel fuel types, including Bio Solar, Dexlite, and Pertamina Dex, with cetane numbers of 48, 51, and 53, respectively, on diesel engine performance in terms of power, torque and specific fuel consumption parameters at various levels of electrical load. The method used is an experiment involving a graded electrical load test ranging from 300 to 1500 Watts. Data were collected under stationary conditions at 1500 rpm using instruments such as voltmeters, ammeters, tachometers, and fuel burettes. The results show that Pertamina Dex produces the highest power at peak load due to its high cetane number, while Bio Solar provides the highest torque due to a longer combustion delay. The highest specific fuel consumption occurs in Pertamina Dex at low loads, while Bio Solar is more efficient at low load conditions.
Analysis of Automotive Industry Competency Needs for Automotive Engineering Education Students of Medan State University in the 4.0 Era Doni, Rahma; Dinata, Riangga; Permana, Agus; Damanik, Hardian Sidik; Basuki, Nur
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 6 No 1 (2025): Vol 6 No 1 (2025) : AEEJ : Journal of Automotive Engineering and Vocational Educa
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v6i1.278

Abstract

The advancement of automotive technology in the Industrial Revolution 4.0 era requires vocational education graduates to possess updated competencies aligned with industry standards. This study investigates the gap between the competencies of students in the Automotive Engineering Education Program at Universitas Negeri Medan and the needs of the automotive industry. A descriptive qualitative approach was applied, involving interviews, observations, and document analysis with stakeholders from academia and industry. The findings reveal a significant misalignment, particularly in digital automotive systems, computer-based diagnostics, and soft skills such as communication and problem-solving. The study highlights the need for curriculum revision, integration of industry-based learning practices, and enhanced collaboration between educational institutions and industry partners to ensure graduate readiness in meeting modern automotive demands.
Co-Authors Affandi, Dery Arif Algifari Damanik, Hardian Sidik Dinata, Riangga Gulo, Yanuardi M Nasir Muhammad Irvan Mulia Mulia Nur Basuki Permana, Agus Pratama, Muhammad Reza Sitohang, Yodi Wagino Wakhinuddin S Zan'nah, Sofiya Vari