Claim Missing Document
Check
Articles

KARAKTERISASI KUALITAS LASAN PADA BAHAN SERUPA AZ31B DENGAN PROSES MICRO-FRICTION STIR SPOT WELDING (µFSSW) UNTUK APLIKASI KENDARAAN Agus Widyianto; Aan Yudianto; Herminarto Sofyan; Gunadi Gunadi
Jurnal Pendidikan Vokasi Otomotif Vol 5, No 2 (2023): (Mei)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpvo.v5i2.60132

Abstract

Keberhasilan penerapan micro-friction stir spot welding (µFSSW) pada bahan AZ31B pada penelitian ini memiliki implikasi yang signifikan untuk aplikasi praktisnya di berbagai industri. Temuan penelitian menunjukkan bahwa teknik pengelasan ini dapat menghasilkan sambungan yang kokoh pada material AZ31B dengan ketebalan 0,3 mm dan 0,5 mm. Geometri pengelasan optimal diperoleh pada 500 milidetik dan 500 mikron, menghasilkan beban geser maksimum dan beban silang masing-masing sebesar 326 N dan 88 N. Studi ini juga meneliti sifat mekanik sambungan, termasuk kekerasannya, dan menganalisis struktur mikro material. Kekerasan material meningkat pada center stir zone (SZ), menandakan terbentuknya sambungan yang lebih kuat. SZ juga menunjukkan butiran yang lebih kecil dibandingkan dengan thermo-mechanically affected zone (TMAZ), menunjukkan bahwa teknik µFSSW memiliki dampak positif pada penyempurnaan butiran. Namun, heat-affected zone (HAZ) menunjukkan butiran yang terrekristalisasi sebagian. Secara keseluruhan, temuan ini menunjukkan potensi µFSSW sebagai teknik pengelasan yang andal untuk material AZ31B, dengan sifat mekanik yang menjanjikan dan struktur mikro yang lebih baik. Penelitian lebih lanjut dapat mengeksplorasi penerapannya pada bahan dan industri lain, serta mengoptimalkan parameter pengelasan untuk hasil yang lebih baik.
ENHANCEMENT OF CRITICAL THINKING SKILLS VOCATIONAL STUDENTS IN INDONESIA USING PROBLEM-BASED LEARNING-STEM BY E-LEARNING Farhan Yadi; Herminarto Sofyan; Herman Dwi Surjono
JURNAL PENDIDIKAN TEKNIK MESIN Vol 10, No 1 (2023): JURNAL PENDIDIKAN TEKNIK MESIN
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jptm.v10i1.21629

Abstract

This study aims to develop a problem-based learning model with the Science, Technology, Engineering, and Mathematics (STEM) approach through e-learning in vocational high schools (SMK) to enhance learning outcomes and critical thinking skills of the students of light vehicle electrical maintenance, which is valid, practical, and effective. The design phase began with determining the fundamental philosophy, theoretical background, hypothetical model, and evaluation aspects, while exhaustive tests were conducted to validate the developed system during the development phase. Based on practical testing in four vocational high schools in Indonesia, the developed PBL-STEM e-learning system is considered valid and effective for enhancing the quality of vocational education. The critical thinking skills of experimental class students have increased, both in groups and individually, as indicated by the progressive percentage increase of 38.32%. The application of this model has proven to be effective in enhancing critical thinking, skills.
PROGRAM KEMITRAAN SMK KOMPETENSI KEAHLIAN TEKNIK KENDARAAN RINGAN DENGAN DUNIA USAHA DAN DUNIA INDUSTRI DI KABUPATEN PURWOREJO Miftah Al Hafidz; Herminarto Sofyan
Journal of Automotive Technology Vocational Education Vol. 3 No. 2 (2022): Oktober 2022
Publisher : Pendidikan Vokasional Teknologi Otomotif, Universitas PGRI Yogyakarta

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

Abstract

Penelitian ini bertujuan untuk mendeskripsikan: (1) bentuk program kemitraan SMK Kompetensi Keahlian Teknik Kendaraan Ringan dengan DU/DI di Kabupaten Purworejo; (2) mekanisme program kemitraan antara SMK Kompetensi Keahlian Teknik Kendaraan Ringan dengan DU/DI di Kabupaten Purworejo; (3) hambatan yang terjadi pada pelaksanaan program kemitraan antara SMK Kompetensi Keahlian Teknik Kendaraan Ringan dengan DU/DI di Kabupaten Purworejo dan cara mengatasi hambatan tersebut. Jenis penelitian ini merupakan penelitian deskriptif untuk mendeskripsikan bentuk program kemitraan, mekanisme program kemitraan, dan hambatan serta solusi pelaksanaan program kemitraan SMK Kompetensi Keahlian Teknik Kendaraan Ringan dengan DU/DI di Kabupaten Purworejo. Penelitian dilakukan di tiga belas SMK yang memiliki Kompetensi Keahlian Teknik Kendaraan Ringan di Kabupaten Purworejo. Teknik pengumpulan data berupa non tes menggunakan lembar angket bentuk kemitraan berbentuk checklist, angket tahapan kemitraan, dan wawancara dengan teknik semi terstruktur. Teknik analisis data menggunakan analisis deskriptif. Data hasil angket dan wawancara dianalisis untuk ditarik kesimpulan. Hasil penelitian menunjukkan bahwa: (1) bentuk program kemitraan yang dilakukan SMK Kompetensi Keahlian Teknik Kendaraan Ringan dengan DU/DI di Kabupaten Purworejo diwujudkan dalam berbagai bentuk kemitraan yaitu prekerin, bantuan tenaga ahli, kunjungan industri, ujian kompetensi, dan rekrutmen; (2) program kemitraan dilaksanakan dalam 10 aspek, 7 aspek atau 70% mekanisme program pada aspek analisis kebutuhan, analisis lingkungan, perencanaan, presentasi, MoU, pelaporan, serta aspek monitoring dan evaluasi terlaksana dalam kategori baik. Sedangkan 3 aspek atau 30% yaitu aspek persetujuan, aspek perundingan, aspek pelaksanaan berada pada kategori sangat baik. Hasil yang dicapai yaitu siswa memperoleh keterampilan, pengetahuan baru, serta karakter yang sesuai dengan dunia kerja. Sekolah mendapatkan peluang untuk memasarkan siswa di DU/DI; (3) hambatan yang terjadi yaitu masalah sarana prasarana dan biaya ketika hendak bermitra, tempat DU/DI yang jauh dan kurangnya kedisiplinan siswa. Dengan demikian perlu komunikasi yang baik dengan DU/DI dan membuat time schedule khusus. Komite sekolah mengalokasikan dana dan koordinasi internal terkait sarana dan prasarana. Kata kunci: program kemitraan, teknik kendaraan ringan, DU/DI
A model of soft skill instruction based on the local culture for vocational teacher candidates in North Sumatra Muhammad Amin; Zamroni Zamroni; Herminarto Sofyan
Jurnal Pendidikan Vokasi Vol 7, No 2 (2017): June
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpv.v7i2.14902

Abstract

This research aims to (1) find an instructional model as a guide for soft skill instruction in LPTK from the aspects of planning, implementation, and evaluation; and (2) determine the effectiveness of the use of soft skill instruction model for vocational teacher candidates. This study is a research and development with the steps adapted from Borg Gall. The research was conducted through five stages including, preliminary studies, developing the initial model, expert validation, limited testing, and expanded trials. The data collection used observation sheets, questionnaires, and assessment sheets. The data analysis was performed with different test by Wilcoxon Signed Ranks Test and Kruskal Wallis Test. The results of the research show that: (1) the instruction model developed are in the category of very valid based on the assessment of experts team, and the level of application suitability is at a very appropriate categories according to user ratings; and (2) the instruction model developed can enhance the ability soft skills of vocational student teachers candidate significantly (p = 0.000), and improve student results were significantly (p = 0.014).
Penerapan accelerated learning dengan pendekatan SAVI untuk meningkatkan motivasi dan hasil belajar kompetensi menggambar busana Esther Mayliana; Herminarto Sofyan
Jurnal Pendidikan Vokasi Vol 3, No 1 (2013): Februari
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (469.029 KB) | DOI: 10.21831/jpv.v3i1.1573

Abstract

Penelitian tindakan kelas ini bertujuan untuk meningkatkan motivasi belajar dan hasil belajar pada kompetensi menggambar busana dengan menerapkan accelerated learning melalui pendekatan SAVI (Somatic, Auditory, Visual, Intellectual). Penelitian terdiri dari tiga siklus setiap siklus dilakukan dua pertemuan. Kegiatan penelitian meliputi perencanaan, tindakan, observasi dan refleksi. Data motivasi belajar dan hasil belajar dianalisis dengan teknik statistik deskriptif. Hasil penelitian menunjukkan bahwa: (1) penerapan accelerated learning dengan pendekatan SAVI dapat meningkatkan motivasi belajar siswa sehingga jumlah siswa yang masuk kategori motivasi belajar tinggi dengan nilai 77,6 - 86,6 sebanyak 10 siswa (32,3%), jumlah siswa kategori motivasi belajar sedang dengan nilai 68,5 - 77,5 sebanyak 21 siswa (67,7%), dan tidak ada siswa (0%) dengan kategori motivasi belajar rendah dengan nilai 59,4 - 68,4; (2) penerapan accelerated learning dengan pendekatan SAVI dapat meningkatkan hasil belajar siswa sehingga jumlah siswa yang memperoleh nilai hasil belajar di atas KKM sebanyak 28 siswa (90,3%), sedangkan siswa dengan nilai hasil belajar di bawah KKM berjumlah 3 siswa ( 9,7%). APPLICATION OF ACCELERATED LEARNING WITH SAVI APPROACH TO IMPROVE MOTIVATION AND LEARNING RESULTS COMPETENCY DRAWING FASHIONAbstractThis study aims to improve the learning motivation and learning outcomes at fashion drawing competence by applying the accelerated learning SAVI (Somatic, Auditory, Visual, Intellectual) approach. This research consisted of three cycles, each of which consisted of two meetings. The research activities included planning, action, observation and reflection. The data on learning motivation and learning outcomes were analyzed using descriptive statistics technique.The results show that: (1) the application of accelerated learning using the SAVI approach can increase students’motivation so that the number of students who fall into the category of high learning motivation with scores 77.6 - 86.6 reaches 10 students (32.3%), the number of the students in the medium category of learning motivation with the scores of 68.5 - 77.5 reaches 21 students (67.7%), and no student (0%) falls in the low learning motivation category with scores of 59.4 - 68.4; (2) the application of accelerated learning using the SAVI approach can improve students’learning outcomes so that the number of students who can obtain the score of the learning outcomes above KKM is 28 students (90.3%), while the number of those with learning outcomes under the KKM is three students (9.7%).
Prototype Learning Management System untuk Mendukung Pengembangan Regional Training Center PT. SGMW Sales Indonesia Ibnu Siswanto; Herman Dwi Surjono; Setyabudi Indartono; Herminarto Sofyan; Zainal Arifin; Deni Hardianto; Ayu Sandra Dewi
Jurnal Pendidikan Vokasi Otomotif Vol 6, No 2 (2024): (Mei)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpvo.v6i2.73247

Abstract

Pengembangan LMS berupa platform yang dapat dipergunakan untuk melaksanakan pembelajaran secara blended learning (offline ataupun online). LMS yang dikembangkan sesuai dengan kebutuhan dari mitra industri (PT. SGMW Sales Indonesia) untuk mengembangkan Regional Training Center di Indonesia. LMS yang dikembangkan bertujuan untuk menyediakan platform pembelajaran yang dapat dipergunakan oleh PT. SGMW Sales Indonesia untuk melakukan kegiatan training bagi para karyawan yang meliputi teknisi, custome care officer, dan juga service advisor.
PELATIHAN PENGGUNAAN FASILITAS PRAKTIK JURUSAN TEKNIK KENDARAAN RINGAN DI SMK NEGERI SAPTOSARI GUNUNGKIDUL DAERAH ISTIMEWA YOGYAKARTA Gunadi Gunadi; Herminarto Sofyan; Aan Yudianto
Jurnal Pendidikan Vokasi Otomotif Vol 6, No 1 (2023): (November)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpvo.v6i1.47497

Abstract

The demands of technological developments require educational institutions to update and equip practical facilities to support the achievement of graduate targets. This requires resources capable of operating and using these practice facilities. This Community Service Program aims to provide training on the use of student practice facilities in the form of Smoke Testers and Gas Analyzers to teachers and technicians of the Automotive Light Vehicle Engineering Department at SMK N Saptosari, Gunungkidul Regency, Special Region of Yogyakarta. With this training, it is hoped that teachers and employees will be able to use the equipment in accordance with procedures. The target audience for this activity are teachers and employees in the Automotive Light Vehicle Engineering Department at SMK N Saptosari. The method used in this activity is through exposure delivered by experts which is then followed by hands-on practical training activities in the use of Smoke Tester and Gas Analyzer tools. The indicator for achieving the objectives in this PPM activity is increasing the knowledge and understanding of the target audience about the use of practical facilities in the form of Smoke Tester and Gas Analyzer tools. The results of the evaluation conducted using a questionnaire showed that the training participants were very satisfied with the activities carried out and wished that these activities be carried out continuously.
Performance and Emission Characteristics Using Dual Injection System of Gasoline and Ethanol Sulistyo, Bambang; Sofyan, Herminarto; Sukardi, Thomas; Widyianto, Agus
Automotive Experiences Vol 6 No 2 (2023)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.8070

Abstract

This study successfully investigated the engine performance and emission characteristics of a dual injection system that uses both gasoline and ethanol fuels. The study utilized a microcontroller-based control system (PGM-FI) to substitute ethanol fuel injection for gasoline injection. Ethanol fuel was injected at the inlet with three different pressures: 1.0 bar, 1.2 bar, and 1.4 bar, while gasoline injector pressure was fixed at 2 bar. Results showed that substituting ethanol injection with a pressure of 1 bar resulted in a slight decrease in torque and power, but it was the best compared to the other pressures tested. The study found that the use of ethanol injection resulted in improved fuel economy at an ethanol injector pressure of 1 bar with a reduction in SFC of 8.89%. Exhaust emissions were also reduced, with a maximum reduction in CO emissions of 42.54% occurring at a pressure of 1 bar. Similarly, the lowest HC content in exhaust gas was observed at a pressure of 1 bar, which was reduced by 44.48%. However, the results highlighted that ethanol injection pressure could significantly reduce fuel consumption for case A-04 and increase the air-fuel ratio.
Evaluasi Program Kelas Industri pada Program Keahlian Teknik Otomotif SMK Negeri 2 Yogyakarta Priti, Priti; Sofyan, Herminarto; Budiman, Agus; Sriyanto, Joko
Jurnal Inovasi Pembelajaran di Sekolah Vol 4 No 2 (2023): Jurnal Inovasi Pembelajaran di Sekolah
Publisher : Persatuan Guru Republik Indonesia Kota Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51874/jips.v4i2.161

Abstract

The aim of this study is to describe the effectiveness of the Industrial Class program evaluation within the Automotive Engineering Skills program at SMK Negeri 2 Yogyakarta, focusing on context, input, process, and product evaluation models. Employing the CIPP model (Context, Input, Process, Product), this research follows an evaluative descriptive approach, utilizing questionnaires, interviews, documentation, and observation methods. The study involved four Industrial Class program teachers and 108 students from the Automotive Engineering program at SMK Negeri 2 Yogyakarta. Instrument validation was conducted through expert judgment, while instrument reliability was assessed using Cronbach's alpha. Both qualitative and quantitative descriptive analyses were employed for data analysis. The findings indicate areas for improvement within the Automotive Engineering Industry Class program at SMK Negeri 2 Yogyakarta. In the context evaluation, the SMK-Industry partnership revealed areas in need of enhancement. In terms of input evaluation, student interest, self-confidence, and satisfaction percentages were 35.19%, 44.44%, and 45.37% respectively, while facilities and infrastructure were deemed to meet industry standards. Regarding process evaluation, the implementation of learning and the use of learning media were rated as fairly good, with a percentage of 35.19%. However, the utilization of learning resources and assessment methods were found to be very good. In the product evaluation, student learning outcomes reached a percentage of 90% in the very good category, and graduate absorption was at a high percentage of 78%.
Evaluasi Program Kemitraan antara DUDI dengan SMK Konsentrasi Keahlian Agribisnis Pengolahan Hasil Perikanan di D.I. Yogyakarta Pramestya, Dhita; Sofyan, Herminarto
JIPTEK: Jurnal Ilmiah Pendidikan Teknik dan Kejuruan Vol 18, No 2 (2025): July
Publisher : Faculty of Teacher Training and Education Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jiptek.v18i2.93769

Abstract

Pelaksanaan kemitraan antara DUDI dan SMK sangat penting untuk mempersiapkan lulusan yang berkualitas, siap kerja, dan berdaya saing. Penelitian ini mengevaluasi program kemitraan pada aspek praktik kerja lapangan (PKL), bursa kerja khusus (BKK), dan in-house training (IHT) untuk menganalisis: (1) pencapaian program PKL, BKK, dan IHT pada konsentrasi keahlian Agribisnis Pengolahan Hasil Perikanan (APHP) di D.I. Yogyakarta menggunakan model Context, Input, Process, dan Product (CIPP); serta (2) kendala yang dihadapi dalam kemitraan DUDI-SMK. Penelitian ini menggunakan kuesioner dan wawancara yang divalidasi melalui expert judgment dan Exploratory Factor Analysis (EFA). Hasil menunjukkan: (1) tingkat pencapaian PKL sebesar 90% (context), 82% (input), 83% (process), dan 91% (product), dengan total 86,50% (kategori sangat baik); (2) tingkat pencapaian BKK sebesar 92% (context), 76% (input), 74% (process), dan 79% (product), dengan total 80,25% (kategori baik); (3) tingkat pencapaian IHT sebesar 91% (context), 92% (input), 89% (process), dan 94% (product), dengan total 91,50% (kategori sangat baik). Kendala meliputi indikator keberhasilan yang belum jelas, kurangnya optimalisasi evaluasi bersama, serta fungsi BKK yang belum maksimal dalam menjembatani lulusan dengan dunia kerja.