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All Journal Jurnal Pendidikan Vokasi Jurnal Teknik Mesin Indonesia Didaktik : Jurnal Ilmiah PGSD STKIP Subang AEEJ : Journal of Automotive Engineering and Vocational Education TOFEDU: The Future of Education Journal Media Elektrik Jurnal Pendidikan Teknik Mesin Jurnal Teknik Mesin
Deddy Supriyatna
Universitas Sultan Ageng Tirtayasa
Aerospace Engineering Automotive Engineering Computer Science & IT Control & Systems Engineering Education Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Transportation Other

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Proses pembuatan gate hollow dengan menggunakan mesin bor radial Csepel tipe RF 22/B Difqi Faza Umary Difqi; Deddy Supriyatna
Jurnal Teknik Mesin Indonesia Vol. 18 No. 2 (2023): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v18i2.438

Abstract

The machining process or can be called the manufacturing process is a process of producing raw materials or finished materials that are converted into the desired goods. One of the processes in the manufacturing industry is the drilling process. The purpose of this research is to know the process of using a radial drilling machine in making hollow gates and to find out what errors occur when the process of making hollow gates takes place. This research uses the method of literature study and field research (field research). The results show that based on the entire process of making a hollow gate, an error was obtained in the process of making a hollow gate regarding the diameter of the hole which should have been 15 mm to 18 mm and there was an error between the distances of the holes that had been made.
SISTEM KERJA RANGKAIAN FORWARD-REVERSE PADA MOTOR 3 FASA Irhamullah Irhamullah; Deddy Supriyatna; Hamid Abdillah
Jurnal Media Elektrik Vol. 20 No. 1 (2022): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v20i1.5477

Abstract

Dalam dunia industri, motor induksi merupakan peralatan yang umum digunakan dalam kegiatan proses produksi karena strukturnya yang sederhana, harga yang relatif murah, biaya perawatan yang rendah, dan efisiensi yang tinggi dibandingkan dengan jenis motor lainnya. Motor 3 fasa memiliki karakteristik arus awal yang besar, namun hal tersebut dapat diatasi dengan beberapa metode penyetelan. Motor 3 Fasa bekerja dengan menggunakan induksi elektromagnetik dari lilitan stator ke lilitan rotor. Metode penelitian ini memakai jenis penelitian eksperimen dijelaskan melalui kualitatif. Riset deskriptif karena dalam penelitian ini tidak ada metode yang digunakan secara spesifik tetapi hanya menggunakan data yang ada dan sementara. Rangkaian Forward-Reverse yaitu rangkaian pengontrol motor 3 fasa. Forward-Reverse adalah kontrol putaran dari motor induksi tiga fasa, motor akan berputar dalam dua arah, bergerak maju dan bergerak berlawanan arah dengan output 3 lampu indikator menyala yaitu L1, L2, L3. Motor 3 fasa beroperasi menggunakan induksi elektromagnetik dari belitan stator ke lilitan rotor [1]. Jika lilitan stator motor induksi tiga fasa dioperasikan dengan sumber tegangan tiga fasa, lilitan stator akan menghasilkan medan magnet yang berputar [2]. Karena konduktor rotor (lilitan) adalah sirkuit tertutup, arus mengalir dalam kumparan rotor.
Sistem Hibrida : HOMER PRO dan PVsyst Nuraina Nuraina; Deddy Supriyatna
JTM : JURNAL TEKNIK MESIN Vol 1 No 1 (2025)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/jtm.v1i2.1911

Abstract

Sistem hibrida energi terbarukan adalah salah satu yang paling menjanjikan, ekonomis, dan dapat diandalkan untuk melistriki daerah pedesaan daerah. Sistem energi hibrida digunakan untuk meminimalkan penggunaan bahan bakar fosil untuk mengurangi dampak terhadap lingkungan. Tetapi analisis dari Sistem Hibrida cukup kompleks, oleh karena itu dibutuhkan perangkat lunak alat untuk mendesain, menganalisis, dan mengoptimalkan perangkat lunak. Topik utama dari penelitian ini adalah untuk memperkenalkan berbagai perangkat lunak utama yang diperlukan untuk desain, analisis dan optimasi sistem hibrida sistem. Perangkat lunak yang dibahas adalah HOMER dan PVsyst.
Analisis Life Time Undercarriage Excavator Komatsu Studi Kasus : Di PT. BIMA Dicky Gunawan; Deddy Supriyatna; Dhimas Arya
JTM : JURNAL TEKNIK MESIN Vol 1 No 1 (2025)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/jtm.v1i2.1928

Abstract

Di tengah persaingan industri yang ketat, kelancaran proses produksi menjadi kunci untuk mencapai keunggulan kompetitif. Penelitian ini berfokus pada analisis umur pakai (life time) komponen undercarriage pada excavator Komatsu di PT. Berkah Industri Mesin Angkat ( BIMA ), yang terdiri dari track shoe, track link, idler, roller, dan sprocket. Komponen ini sangat rentan terhadap keausan akibat tekanan dan gesekan selama operasi, dengan biaya perawatan mencapai 50% dari total biaya pemeliharaan alat berat. Melalui pendekatan deskriptif kuantitatif dan metode studi kasus, penelitian ini menganalisis masa pakai aktual komponen berdasarkan data operasional dan kondisi keausan. Hasil menunjukkan bahwa umur pakai komponen bervariasi antara 4.200 hingga 5.800 jam kerja, tergantung pada jenis komponen dan kondisi operasional. Model distribusi Weibull digunakan untuk memprediksi Remaining Useful Life (RUL), yang menunjukkan bahwa sebagian besar komponen mengalami keausan yang bersifat kecepatan meningkat. Inovasi teknologi seperti PLUS dan sistem pelumasan tertutup (Greased Sealed Track) dapat meningkatkan ketahanan komponen hingga kurang lebih 20%. Penelitian ini merekomendasikan implementasi sistem pemeliharaan berbasis kondisi dan pelatihan teknis bagi operator untuk meningkatkan efisiensi operasional dan mengurangi risiko kerusakan mendadak. Penelitian lanjutan diharapkan dapat mengeksplorasi pengaruh jenis medan kerja dan pola penggunaan alat terhadap umur pakai undercarriage
PENGARUH POLARITAS DCEN DAN DCEP TERHADAP KEDALAMAN PENETRASI LAS SMAW MENGGUNAKAN ELEKTRODA E7016 Siti Irna Solehah; Muhamad Nursaleh; Deddy Supriyatna
Jurnal Pendidikan Teknik Mesin Vol. 9 No. 1 (2022): Jurnal Pendidikan Teknik Mesin
Publisher : Program Studi Pendidikan Teknik Mesin Fakultas Keguruan dan Ilmu Pendidikan Universitas Sriwiajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jptm.v9i1.15777

Abstract

Penentuan tegangan mesin las yaitu AC dan DC, dan polaritas mesin DC+ dan DC- serta jenis elektroda yang digunakan dapat mempengaruhi hasil dari perbandingan kedalaman penetrasi las. Selain itu penggunaan arus pada proses pengelasan akan berpengaruh. Dalam penelitian pengelasan pelat baja ASTM A36 menggunakan proses pengelasan SMAW pada polaritas DCEN dan DCEP dengan metode penelitian eksperimen yang bertujuan untuk menunjukan hasil perbandingan kedalaman penetrasi dengan menggunakan elektroda E7016 pada pelat ASTM A36. Hasil dari penelitian menunjukan bahwa kedalaman penetrasi pada polaritas DCEP lebih dalam dibandingkan dengan polaritas DCEN. Penetrasi yang diukur dari batas sejajar logam induk pada polaritas DCEN menghasilkan kedalaman 0,64 mm-0,86 mm, sedangkan penetrasi lebih dalam dihasilkan daripada polaritas DCEP yaitu dengan kedalaman penetrasi 0,76 mm-1,14 mm. Dengan perbandingan selisih kedalaman penetrasi keduanya yaitu pada arus 60 A memiliki selisih 0,09 mm, pada arus 70 A memiliki selisih 0,16 mm, pada arus 80 A memilki selisih 0,28 mm dan pada arus 90 A memiliki selisih 0,28 mm. Berdasarkan hasil ini dapat dilihat pengaruh besaran arus terhadap hasil penetrasi. Jika arus yang diberikan tinggi, maka kedalaman penetrasi yang didapatkan lebih dalam. Sehingga nilai kekuatan las yang dihasilkan pun akan lebih meningkat jika kedalaman penetrasi yang dihasilkan pun lebih dalam.
Developing augmented reality on differential system, competency system, and power transfer in vocational education Dandi Firman Dani; Sulaeman Deni Ramdani; Deddy Supriyatna
Jurnal Pendidikan Vokasi Vol. 12 No. 2 (2022)
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpv.v12i2.48804

Abstract

This study aimed to know: 1.) Describe the development of augmented reality books in the differential system; and 2.) Analyze the feasibility level of the application on the augmented reality book differential system. This study uses research and development (R&D) with the waterfall development design model, which includes four stages: analysis, design, coding or implementation, and testing. This study's sample was 11th-grade vocational high school students majoring in automotive light vehicle engineering. Application testing uses black-box testing by testing functionality without testing the internal structure or function of the application. The data collection used in this study included three media experts, three material experts, and 30 user responses (students) with data analysis techniques using descriptive analysis. The results of this study are (1) augmented reality books and applications on the android platform as learning media on the differential system, and (2) feasibility analysis by media expert validation with an average value of 80%, material experts with an average value of 84% and user responses with an average value of 90 % with a total value of 85% with the 'very eligible' category to be used as a learning medium in the differential system of chassis and power transfer competencies. Research products can be used as an attractive alternative learning media by utilizing digital technology that can display 3D objects in detail on the competence of the differential system.
Analisis Kerusakan Differential Pada Kendaraan HINO 260 FM (SH17) : Studi Kasus di PT. Hudaya Maju Mandiri Deddy Supriyatna; Dandy Rasyid Muttaekid
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 2 No 1 (2021): AEEJ : Journal of Automotive Engineering and Vocational Education
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v2i1.61

Abstract

Differential or often known as the axle is a component in a car that functions to transmit engine power to the wheel axle that previously passed through the transmission and propeller shaft. Problems or damage to the differential varies, ranging from a buzzing sound in the differential, damage to the gear pinion, worn gear pinion, oil leakage in the differential. In this case, finding the differential is damaged in the pinion gear, the pinion teeth are worn and damaged so that the vehicle cannot run or the torque from the engine cannot be continued due to damage to the differential. The differential on the HINO 260 FM vehicle has a lot of damage to the differential, because the overload. Overload capacity or weight of the vehicle's payload exceed the standard limits and there is a differential damage in the pinion gear. Differential atau sering dikenal dengan nama gardan adalah komponen pada mobil yang berfungsi untuk meneruskan tenaga mesin ke poros roda yang sebelumnya melewati transmisi dan propeller shaft. Problem atau kerusakan pada differential bermacam-macam, mulai dari bunyi berdengung pada bagian differential, kerusakan pada gear pinion, gear pinion aus, kebocoran oli pada differential. Pada kasus kali ini, menemukan kerusakan differential pada bagian pinion gear, gigi pinion aus dan rusak sehingga membuat kendaraan tidak bisa berjalan atau tenaga putaran dari mesin tidak bisa diteruskan keroda akibat kerusakan pada differential. Differential pada kendaraan Hino 260 FM sering sekali rusak, dikarenakan daya angkut yang melebihi kapasitas. Dan hal inilah yang biasanya menjadi penyebab kerusakan differential pada bagian pinion gear.
The Learning Innovation Skills of Vocational Teacher Candidates: A Case Study in the Vocational Education Program of Mechanical Engineering at Untirta Nana Suryana; Sulaeman Deni Ramdani; Deddy Supriyatna
The Future of Education Journal Vol 4 No 7 (2025): Continued
Publisher : Lembaga Penerbitan dan Publikasi Ilmiah Yayasan Pendidikan Tumpuan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61445/tofedu.v4i7.957

Abstract

This study aims to explore learning innovation skills in vocational teacher candidates in the Mechanical Engineering Vocational Education Program (PVTM) at Sultan Ageng Tirtayasa University. A qualitative approach with a case study method was used in this research. Data were collected through observations and in-depth interviews, utilizing interview guides and assessment rubrics to ensure the objectivity of the analysis. The research sample was drawn from 30% of students previously categorized as having low skills based on earlier studies, with the condition that they had completed the School Field Introduction course (PLP). The results showed that this classification was not entirely accurate. Some students categorized as “low” actually demonstrated strong competencies in innovative skills such as creative thinking, collaboration, communication, and problem-solving. The findings suggest that PVTM students have potential that can be developed into adaptive vocational teachers who are capable of facing the challenges of 21st-century learning. Strengthening teaching strategies and holistic evaluations is crucial to optimizing their abilities.
PENGARUH KOMPETENSI KEAHLIAN DAN PRAKTIK KERJA LAPANGAN TERHADAP KESIAPAN KERJA SISWA DI SMKN 2 PANDEGLANG Yudi Oktavia Ramadhan; Deddy Supriyatna; Ade Dwi Putra Janata
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 3 (2026): Volume 12 No. 3, September 2026 Produce
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i3.17959

Abstract

This study aimed to determine the effect of vocational competence and field work practice on the work readiness of grade XII students in the Light Vehicle Engineering Expertise Concentration at SMKN 2 Pandeglang. This research used a quantitative approach with an ex-post facto method. The population consisted of 43 students, all of whom were selected as the sample using saturated sampling. Vocational competence data were obtained from the Vocational Competency Test scores, while field work practice and work readiness data were collected using questionnaires. Data analysis included descriptive statistics, validity and reliability tests, prerequisite tests, multiple linear regression, t-test, F-test, and coefficient of determination. The results showed that: (1) vocational competence did not have a significant effect on students' work readiness, with t = -0.600 and Sig. = 0.552, with a contribution of 0.8%; (2) field work practice had a positive and significant effect on work readiness, with t = 4.878 and Sig. = 0.000, and R² = 0.362 or 36.2%; and (3) vocational competence and field work practice simultaneously had a significant effect on work readiness, with F = 11.999 and Sig. = 0.000. The coefficient of determination of 0.369 indicates that both variables jointly contributed 36.9% to students' work readiness, while the remaining 63.1% was influenced by other factors.
Co-Authors Ade Dwi Putra Janata Dandi Firman Dani Dandy Rasyid Muttaekid Dhimas Arya Dicky Gunawan Difqi Faza Umary Difqi Hamid Abdillah Irhamullah Irhamullah Muhamad Nursaleh Nana Suryana Nuraina Nuraina Siti Irna Solehah Sulaeman Deni Ramdani Yudi Oktavia Ramadhan