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All Journal Jurnal Abdi Insani International Journal of Engineering, Science and Information Technology International Journal of STEM Education for Sustainability TECHNOLOGIC
Febriyanto, Rusdi
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PENGUATAN KOMPETENSI GURU SMK MELALUI PELATIHAN PEMERIKSAAN HASIL PENGELASAN BERSTANDAR AWS Putra, Ananda Yhuto Wibisono; Abdillah, Hamid; Janata, Ade Dwi Putra; Putra, Ricky Cahyasari; Fawaid, Moh; Febriyanto, Rusdi; Ikhsanudin, Ikhsanudin
Jurnal Abdi Insani Vol 12 No 9 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i9.2886

Abstract

Vocational education requires teachers to possess professional competencies that are relevant to industrial developments, including skills in weld inspection. However, most vocational high school (SMK) teachers still face limitations in understanding inspection procedures based on international standards. This condition creates a gap between the teaching process and the needs of industry, which emphasizes weld quality. Therefore, a systematic training program is needed to improve the quality of welding instruction in vocational schools. This activity aimed to strengthen the competencies of vocational school teachers in conducting weld inspections according to the American Welding Society (AWS) standards. The methods included needs assessment, delivery of theoretical materials, practice of visual inspection and non-destructive testing (NDT), as well as process and outcome evaluation. The training was implemented in a participatory manner through a combination of lectures, discussions, and hands-on practice with experienced instructors. The results indicated that teachers gained better conceptual understanding of weld inspection standards. Moreover, their technical skills in visual inspection and the application of NDT methods improved significantly. Process evaluation showed active participation and high enthusiasm among participants, while outcome evaluation demonstrated high levels of satisfaction with the instructors’ competence and the relevance of the materials to school practices. Overall, the training effectively bridged teachers’ competency gaps and enhanced the relevance of vocational learning to industry standards.
Development of Application-Based Interactive Learning Media in Automotive Engineering Anwar, Choyrul; Umara, Andi Maga; Nurtanto, Muhammad; Sutrisno, Valiant Lukad Perdana; Nendra, Fadly; Febriyanto, Rusdi
International Journal of Engineering, Science and Information Technology Vol 5, No 4 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i4.1538

Abstract

Learning media significantly impacts the effectiveness of the learning process. The automotive industry is experiencing rapid development, resulting in a high demand for technicians with expertise in the automotive field. The purpose of this study was to test the development of Smart Apps Creator (SAC) to create interactive learning resources for Engine Management Systems (EMS). This research and development (RD) project used the ADDIE development approach. Five subject matter experts and five media specialists comprised an expert assessment group that validated and evaluated the media to ensure its feasibility. In addition, 62 students reviewed the learning materials as users of the application. The media specialists' evaluation of the feasibility of the learning media construction resulted in a score of 4.02, which is considered practical. The subject matter experts' evaluation of the feasibility of the learning media material resulted in a score of 4.15, which is considered practical. The students' evaluation of the acceptance of the learning media as users resulted in a score of 4.07, which is classified as practical. Meanwhile, the application implementation in the learning process proved to increase learning success among students who used the program development. All things considered, the findings of this study can be used as evidence that application-based learning materials are worthy of widespread use, which will further improve teaching standards. Furthermore, vocational teachers must innovate in developing learning media by utilizing and integrating technology into the process. The creation of such media is necessary in the 21st century to provide easily accessible and understandable learning materials so that students can effectively absorb the information.
ANALISA POMPA COOLING WATER SUPPLY UNTUK MENGHASILKAN STANDAR POMPA YANG EFISIEN DI COOLING TOWER 4 PT EFG Purwoko, Yohanes Agung; Ridho Febrianto, Fendi; Susilo, Ade; Febriyanto, Rusdi
Technologic Vol 15 No 1 (2024): TECHNOLOGIC
Publisher : LPPM Politeknik Astra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52453/t.v15i1.382

Abstract

PT EFG Casting Plant is a manufacturing company that produces engine components used for Daihatsu car engines and some Toyota car engines. The production process is closely related to the high-temperature molding process using a casting machine. Overall, it is cooled using water from a cooling tower and the water is supplied using 2 pumps. An analysis was carried out which aims to determine the efficiency of the two cooling water supply pumps and from the results of this analysis obtained a low efficiency of 66% for each pump, this is because there is a 50% closure of the valve after the cooling water supply pump and if the valve is not done closing can cause cavitation in the pump. The low efficiency of the pump motor can result in less than optimal use of electric power in the pump. To overcome this problem the authors make improvements by providing standard pumps that have optimal efficiency in piping installations at PT EFG. So that from the results of these calculations it was found that initially using two cooling water supply pumps to meet the needs of cooling water, it can be reduced and replaced by using one efficient pump and power use can be optimized. Pump motor efficiency can increase up to 74% and can reduce the use of electric power by 53,049.9 kWh. Keywords: cooling tower, pump efficiency, pump standardization, energy.
OPTIMALISASI PROSES DENGAN METODE COMMONIZE BOOTH B UNTUK MATERIAL X** TWO TONE KANSAI PAINT di LINE TOPCOAT PT ASTRA DAIHATSU MOTOR Purwoko, Yohanes Agung; Mukhtariz, Akmal; Edi Widyartono, Andreas; Amri, Mahardhika; Febriyanto, Rusdi
Technologic Vol 15 No 1 (2024): TECHNOLOGIC
Publisher : LPPM Politeknik Astra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52453/t.v15i1.431

Abstract

Abstract – PT. Astra Daihatsu Motor Karawang Assembly Plant is a manufacturing company in Indonesia that produces four-wheeled vehicle models for the Daihatsu and Toyota brands. The Painting process is one of the processes in a series of car manufacturing processes at PT. Astra Daihatsu Motor Karawang Assembly Plant. After collecting data related to the achievement of the KPI (Key Performance Index) of the Painting Department, several aspect points were obtained that had not reached the target, one of which was a process aspect point related to efficiency. After being broken down, the Tocpoat Line becomes the main process with the lowest efficiency, which only reaches 87%. With the current achievement of efficiency, in one hour Topcoat is only able to produce 62.6 units/hour from the target of 68.7 units that must be produced. However, with the ability of the current topcoat, it causes a loss of 5.1 units/hour and must be done overtime at the end of production. Therefore, a deeper study was carried out using the QCC 8 Step method which focused on the Topocoat production line, as well as making improvements to one of the efficiency problems, namely Heijunka X** Twotone with the target of increasing efficiency, meeting supply unit needs towards touch ups, and reducing unit loss per hour on the Topcoat production line. After this analysis and improvement was carried out, it was seen that the results of changes in efficiency increase were achieved, which reduced unit loss in the topcoat and were able to save costs related to overtime.Keywords : Pinting Departement KPI, Efficiency Topcoat, Target Unit, Overtime.
MENINGKATKATKAN EFEKTIVITAS PROSES BLEEDING SISTEM REM DENGAN SST BRAKE BLEEDER DI PT XYZ Wanda, Wanda; Fala, M Asyraf; Febriyanto, Rusdi; Agung Purwoko, Yohanes; Tarigan, Elroy FKP
Technologic Vol 15 No 2 (2024): TECHNOLOGIC
Publisher : LPPM Politeknik Astra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52453/t.v15i2.432

Abstract

Car Sales operation merupakan unit bisnis yang melayani penjualan, perbaikan dan pemeliharaan kendaraan ringan, yang selalu berupaya memberikan pelayanan terbaik kepada pelanggan dengan cara melakukan improvement guna meningkatkan pelayanan service secara kualitas dan kuantitas kerja yang bertujuan untuk meningkatkan kepuasan pelanggan. Permasalahan yang ditemukan adalah lamanya waktu pengerjaan service berkala servis berkala 40.000 Km yang diakibatkan proses bleeding sistem rem yang membutuhkan waktu selama 15 menit dan memerlukan 2 pekerja. Untuk mengatasi masalah tersebut, dirancang SST brake bleeder yang dapat dioperasikan oleh satu pekerja sehingga dapat mempermudah dan mempersingkat waktu pengerjaan. Metode penelitian dilakukan dengan observasi, wawancara, dan analisis unit entry yang dianalisis menggunakan metode 4M-1E dan diagram fishbone dan dievaluasi menggunakan PQCDSM. Hasil penerapan SST brake bleeder dapat menurunkan waktu pengerjaan dari 15 menit menjadi 10 menit dan menurunkan manpower operasional pengerjaan dari 2 pekerja menjadi 1 pekerja. Ditinjau dari penurunan waktu dan manpower maka pekerjaan menggunakan SST ini menjadi lebih efektif dan efisien, sehingga produktivitas teknisi dapat ditingkatkan secara maksimal.
MEMAKSIMALKAN MANPOWER SERTA MENEKAN LEADTIME OVERHAUL KOMPONEN CRAWLER DENGAN PEMBUATAN ALAT BANTU re-TAPPING ELEKTRIK DI PT XYZ tarigan, elroy fkp; Kuncoro, Alfito Yudhasuri; Febriyanto, Rusdi; Wanda, Wanda
Technologic Vol 16 No 1 (2025): TECHNOLOGIC
Publisher : LPPM Politeknik Astra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52453/t.v16i1.454

Abstract

PT XYZ divisi service merupakan divisi yang menangani jasa layanan sevice unit alat berat seperti General Overhaul. Permasalahan saat ini yang ada pada leadtime overhaul unit bertipe crawler melebihi dari plan pada proses recondition chassis dikarenakan proses retap membutuhkan beban kerja yang berat sehingga membutuhkan 3 manpower. Kondisi pengerjaan retap sebelumnya dilakukan secara manual dengan tenaga manusia sehingga membuat pengerjaan dilakukan dengan durasi 42,8 jam. Solusi yang ditawarkan melalui penelitian ini adalah dengan modifikasi pembuatan alat bantu retap elektrik sebagai pengganti tenaga manpower sehingga dapat memperkecil durasi kerja menjadi 6,2 jam dan 1 manpower.
STEAM-Based Pre-Vocational Learning: A Process Assessment Study Using a Mini Solar Panel House Project Janata, Ade Dwi Putra; Febriyanto, Rusdi; Putra, Ananda Yhuto Wibisono; Putra, Ricky Cahyasari; Ikhsanudin, Ikhsanudin
International Journal of STEM Education for Sustainability Vol 6, No 1 (2026)
Publisher : Gemilang Maju Publikasi Ilmiah (GMPI) 

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53889/ijses.v6i1.754

Abstract

This study examined the effectiveness of STEAM pre-vocational learning in terms of the development of students’ psychomotor skills and affective attitudes. The study employed a descriptive quantitative approach with a project-based observation method among 23 fifth-grade students at an elementary school in Indonesia. The learning process was developed based on a Mini Solar Panel House project, which was an authentic pre-vocational learning task that integrated science, technology, engineering, art, and mathematics. The data were gathered using a validated process observation tool, which had content validity confirmed by Aiken’s V-value ( 0.75) and high internal consistency for both psychomotor (α = 0.87) and affective (α = 0.84) dimensions. The psychomotor dimension included four components: work safety, work preparation, work procedure, and presentation of results, while the affective dimension included responsibility, teamwork, communication, and discipline. The findings indicated that students demonstrated high performance in both dimensions with a mean score of 1.80 for psychomotor skills and 1.78 for affective attitudes on a 2.00-point scale. The highest achievements were obtained in work procedure (M = 1.90) and discipline (M = 1.93), while presentation skills (M = 1.70) and teamwork (M = 1.60) were relatively lower. The Pearson’s correlation analysis showed a strong positive correlation between the psychomotor and affective areas (r = 0.76, p 0.01), with the highest correlation between work procedure and discipline (r = 0.81). The findings of this study show that STEAM-based pre-vocational learning is an effective approach to support the integrated development of technical competencies and work-related attitudes, as measured by process-based assessment. This study adds to the existing literature on STEAM by providing empirical insights into the integration of psychomotor and affective areas in early pre-vocational settings. It has implications for the development of holistic and project-based learning models.
Fostering Prevocational STEAM Learning through Motion-to-Electricity Module: A Hands-on Approach for Elementary Students Putra, Ricky Cahyasari; Ikhsanudin, Ikhsanudin; Janata, Ade Dwi Putra; Febriyanto, Rusdi; Putra, Ananda Yhuto Wibisono
International Journal of STEM Education for Sustainability Vol 6, No 1 (2026)
Publisher : Gemilang Maju Publikasi Ilmiah (GMPI) 

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53889/ijses.v6i1.757

Abstract

The inclusion of Science, Technology, Engineering, Arts, and Mathematics (STEAM) education in the elementary level has been seen as a crucial part in the development of 21st-century skills and prevocational developments of elementary students. This study aims to find out the effectiveness of a hands-on motion-to-electricity learning module in enhancing STEAM skills of 5th-grade elementary students using a one-shot quasi-experimental design. The participants consisted of 28 fifth-grade students from a primary school in the Banten province. To demonstrate the conversion of kinetic energy into electrical energy, the students built simple wheel generator sets using bicycle dynamos, wires, rotating wheels, and LED lights. Immediately after the activity, a 15-item validated evaluation form was employed to collect data, focusing on the principles of energy conversion, concepts of renewable energy, and simple engineering knowledge. Based on the statistical analysis, 82.1% of the students achieved beyond the required level of proficiency, scoring a mean of 67.25 and a standard deviation of 16.34. The findings of the observation conclusion revealed that the students exhibited a positive attitude towards technical subjects, were actively engaged in their learning process, and worked together to overcome problems. The findings of the study's conclusion indicate that interactive STEAM educational materials can be a valuable tool in increasing the interest of primary school students in technical subjects and their understanding of energy conversion concepts. This study supports the use of hands-on learning approaches in elementary STEAM education as a foundation for future prevocational and technical education.
Psychometric Validation of a STEAM-Based Knowledge Instrument for Measuring Energy Conversion Concepts in Fifth-Grade Students Ikhsanudin, Ikhsanudin; Putra, Ricky Cahyasari; Janata, Ade Dwi Putra; Febriyanto, Rusdi; Putra, Ananda Yhuto Wibisono; El Islami, R. Ahmad Zaky; Alasa, Victor M.; Camara, Jun S.; Triplett, William J.
International Journal of STEM Education for Sustainability Vol 6, No 2 (2026)
Publisher : Gemilang Maju Publikasi Ilmiah (GMPI) 

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53889/ijses.v6i2.762

Abstract

This study aimed to develop and validate the quality of a multiple-choice instrument for measuring fifth-grade elementary students' understanding of kinetic-to-electrical energy conversion concepts within a STEAM (Science, Technology, Engineering, Arts, and Mathematics) framework. The research employed a Design and Development Research (DDR) approach with systematic instrument development procedures comprising: literature review and blueprint development, item construction, expert validation, field testing with 28 fifth-grade students, and comprehensive psychometric analysis. The instrument consists of 20 multiple-choice items covering three knowledge dimensions: conceptual (5 items), procedural (10 items), and applicative (5 items). Content validity was established through expert review by three science education specialists, yielding a Content Validity Index (CVI) of 0.87. Item analysis revealed difficulty indices ranging from 0.35 to 0.85 (predominantly moderate difficulty) and discrimination indices ranging from 0.30 to 0.75 (good to excellent discrimination). Reliability analysis using Cronbach's alpha produced a coefficient of 0.82, indicating high internal consistency suitable for elementary school assessment contexts. The instrument demonstrates satisfactory psychometric properties aligned with standards for elementary science assessment and effectively integrates STEAM pedagogical approaches.
Co-Authors Ade Dwi Putra Janata Agung Purwoko, Yohanes Alasa, Victor M. Amri, Mahardhika Ananda Yhuto Wibisono Putra Anwar, Choyrul Camara, Jun S. Edi Widyartono, Andreas Fadly Nendra Fala, M Asyraf Hamid Abdillah Ikhsanudin Ikhsanudin Kuncoro, Alfito Yudhasuri Moh Fawaid Muhammad Nurtanto Mukhtariz, Akmal Purwoko, Yohanes Agung R. Ahmad Zaky El Islami Ricky Cahyasari Putra Ridho Febrianto, Fendi Susilo, Ade Tarigan, Elroy FKP Triplett, William J. Umara, Andi Maga Valiant Lukad Perdana Sutrisno, Valiant Lukad Perdana Wanda Wanda