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All Journal Jurnal Teknik Mesin CIVED (Journal of Civil Engineering and Vocational Education) QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama INVOTEK: Jurnal Inovasi Vokasional dan Teknologi JURNAL PENDIDIKAN TAMBUSAI Jurnal Teknologi Informasi dan Pendidikan MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat GANDRUNG: Jurnal Pengabdian Kepada Masyarakat Teknomekanik Ideguru: Jurnal Karya Ilmiah Guru Jurnal Vokasi Mekanika Al-Alam : Islamic Natural Science Education Journal Tsaqofah: Jurnal Penelitian Guru Indonesia MASALIQ: Jurnal Pendidikan dan Sains Jurnal Aplikasi IPTEK Indonesia Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat Journal of Engineering Researcher and Lecturer Ranah Research : Journal of Multidisciplinary Research and Development Journal of Innovative and Creativity Journal of Civil Engineering and Vocational Education Venus: Jurnal Publikasi Rumpun Ilmu Teknik Journal of Golden Generation Education JRTI (Jurnal Riset Tindakan Indonesia)
Delima Yanti Sari
Universitas Negeri Padang
Religion Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Hubungan Hasil Belajar Produk Kreatif dan Kewirausahaan (PKK) dengan Kesiapan Berwirausaha Siswa Teknik Pemesinan SMKS Dhuafa Padang Wahyudi, Wahyudi; Sari, Delima Yanti; Purwantono, Purwantono; Qalbina, Fitrah
MASALIQ Vol 4 No 6 (2024): NOVEMBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i6.3883

Abstract

SMKS Dhuafa Padang equips students with entrepreneurial knowledge and skills through the subject of Creative Products and Entrepreneurship (PKK). However, students' entrepreneurial readiness is still low. This study examines the factors behind it, such as the narrowing of employment opportunities, entrepreneurship can create jobs, PKK has an influence on the entrepreneurial spirit, entrepreneurship learning has an important role in improving students' entrepreneurial readiness. This study uses a quantitative correlational type to determine the relationship between PKK and Entrepreneurial Readiness. Data collected in the form of numbers and analyzed using statistics. The research method used is associative quantitative, which aims to determine the influence and relationship between PKK and Entrepreneurial Readiness. This study found that PKK has a relationship with student entrepreneurship readiness at SMKS Dhuafa Padang. This is evidenced through the T test and F test, where the value of Sig. 0.05 and the value of tcount ttable (in the T test) and the value of fcount ftable (in the F test) indicates a relationship.In conclusion, PKK proved to play an important role in increasing students' interest in entrepreneurship, with 15.1% influenced by PKK and the rest by other factors.
PENGEMBANGAN E-MODUL PADA MATA PELAJARAN TEKNIK GAMBAR MANUFAKTUR DI SMKS DHUAFA PADANG Putra, Syafriade; Indrawan, Eko; Sari, Delima Yanti
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 4 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i4.741

Abstract

The learning media used previously for the Manufacturing Drawing Technique subject in class XI of Machining Engineering has not been optimal in achieving learning objectives. Therefore, this research aims to develop e-modules as learning media at SMKS Dhuafa Padang. The research used an R&D development model in education based on the IDI model, which was carried out in the odd semester of FY 2023/2024. The IDI model includes three stages: determination, development, and assessment. Data were collected through a validation sheet in the form of a questionnaire and analyzed with quantitative descriptive statistics. The results showed that this e-module was feasible to use as an independent learning media with a final validity value of 0.83 from material experts and 0.90 from media experts, which met the valid criteria. The e-module practicality test showed very practical results, with an average percentage value of 93.6% from the teacher's assessment. The use of this e-module is expected to provide several significant advantages for the learning process. First, this e-module allows more flexible access to learning for students, allowing them to learn anytime and anywhere at their convenience. Secondly, interactive and engaging e-modules are expected to increase students' motivation and interest in learning. Thus, this e-module not only helps students understand the subject matter better but also supports the development of self-learning skills essential for long-term academic success.
PENGGUNAAN MEDIA AUDIO VISUAL PADA MATA PELAJARAN PENGETAHUAN DASAR TEKNIK MESIN DI KELAS X SMK NEGERI 5 PADANG Fadillah, Fikri; Refdinal, Refdinal; Sari, Delima Yanti; Efendi, Fiki
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 4 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i4.764

Abstract

Social media is widely used in education for various learning activities, such as searching for educational materials, using it as a tool, giving assignments, participating in discussion forums, and many more. Optimizing learning outcomes is the goal of using social media in the classroom. Online communities, bloggers, social media, wikis, forums and virtual worlds are examples of social media platforms where users can interact, share and create content easily. This study aims to introduce social media as a teaching aid in the subject of basic knowledge of mechanical engineering (PDTM), Department of Machining Engineering Class X, State Vocational High School 5 Padang. A total of 32 class x students Department of Mechanical Engineering participated in the study January-June 2023/2024 school year. The results showed an increase from pre test to post test. In the pre-test value obtained a value of 74.422 and the post-test learning outcomes were 79.79, this. This proves that, there is a difference between learning outcomes that use audio visual media and do not use audio visual media at State Vocational High School 5 Padang.
ANALISIS PENGEMBANGAN MEDIA PEMBELAJARAN E-MODUL PADA MATA PELAJARAN TEKNIK PEMESINAN BUBUT DI SMKS DHUAFA PADANG Richardo, Richardo; Syahri, Budi; Purwantono, Purwantono; Sari, Delima Yanti
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 4 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i4.771

Abstract

The role of education is crucial in individual self-development to overcome faced challenges. The learning process is a fundamental means to enhance this educational role. However, to support an effective learning process, appropriate media is needed to ensure that information received by students is more easily understood. At SMKS Dhuafa Padang, for the lathe machining technique subject, learning media is still limited to whiteboards, textbooks, and PowerPoint presentations, which create student dependency on teachers. The lack of visualization in learning results in students having difficulty understanding the material. Therefore, E-modules become a solution to improve the quality of lathe machining technique learning. E-modules allow students to learn independently with neatly and systematically arranged material, stronger visualization, and interactivity. In conducting this research, the researcher used a Research and Development (R&D) approach and employed the Instructional Development Institute (IDI) development procedure, which has three steps: Define (needs analysis), Develop (e-module media design), and Evaluate (Validity Evaluation). The research instrument used questionnaires filled out by validators (teachers and lecturers), and the research results showed a score of 0.925 for material validity and 0.903 for media validity, indicating that this e-module media is feasible and valid for application as learning media. It is hoped that with the existence of this E-module, it can be utilized as additional learning media in the Lathe Machining Technique learning process.
Analisis Pengaruh Model Turbulen dalam Simulasi CFD Centrifugal Fan menggunakkan Ansys Santoso, Bagas; Sari, Delima Yanti; Nurdin, Hendri; Qalbina, Fitrah
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 1 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i1.811

Abstract

The study was conducted to determine the airflow in the backward type centrifugal fan using Computational Fluid Dynamics (CFD) simulation. This type of fan is often used in various industries due to its high efficiency in moving air or gas. In CFD simulation, the selection of the right turbulent model is very important to obtain simulation results that are reliable, efficient, and relevant to real conditions. The study used four different turbulent models to look at their effects on pressure distribution, flow velocity, and fan efficiency. The turbulent models used are k-ε Standard, k-ε RNG, k-ε Realizable and k-ω SST. The goal was to find the most optimal turbulent model of the centrifugal fan around the impeller. The impeller has an angle (,β-1.) of 35,260 with a rotation speed of 301,069 rad/s. The simulation was carried out by meshing about 500,000 mesh elements for a balance between accuracy and computing needs. Validation was carried out by comparing the simulation results of Ansys Student R1 2024 and Solidwork. Of the four turbulent models tested, k-ε RNG provided the most accurate results, with an efficiency difference of only 1.3% compared to Solidworks. This model manages to capture better variations in pressure and flow velocity, especially in turbulent areas and around the impeller. These results show that the k-ε RNG turbulent model provides closer results than other models. These findings are important for the optimization of centrifugal fan design and emphasize the importance of selecting the right turbulent model in numerical simulations.
Analisis Natural Frequency pada Struktur Engine Mounting dengan Solidworks Research License 2021-2022 Pasaribu, Reynaldy; Sari, Delima Yanti; Waskito, Waskito; K, Arwizet
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 1 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i1.814

Abstract

Engine Mounting atau dudukan mesin merupakan komponen penting yang terdapat pada mesin pembakaran dalam maupun mesin pembakaran luar yang memiliki fungsi untuk meredam getaran maupun kebisingan, dan menahan beban mesin. Setiap mesin pembakaran dalam tidak terlepas dari yang namanya getaran atau vibrasi, hal ini karena pada umumnya mesin pembakaran dalam menghasilkan gerak rotasi dan mengalami siklus berulang. Jika vibrasi sudah memasuki Natural Frequency dari suatu struktur bagian mesin, maka akan dapat menimbulkan kerusakan terhadap struktur komponen-komponen mesin. Natural frequency suatu objek tergantung pada karakteristik fisiknya seperti massa dan kekakuannya. Dalam penelitian ini bertujuan untuk mengetahui modus getar, dan nilai natural frequency dari engine mounting, hal ini sangat penting dilakukan untuk mencegah terjadinya resonansi pada engine mounting. Dalam penelitian ini model tiga dimensi struktur engine mounting dibuat menggunakan perangkat lunak CAD (Computer Aided Design) yaitu Solidworks Research License 2021-2022, dan prosedur yang digunakan dalam penelitian ini adalah FEA (Finite Element Analysis) pada software Solidworks Research License 2021-2022. Simulasi dilakukan dengan meshing sekitar 65.591 element mesh hasil simulasi solidworks menunjukkan bahwa natural frequency engine mounting berkisar antara 37,40 Hz hingga 177,28 Hz, dengan displacement maximum mencapai 0,562 dalam keterangan AMPRES pada modus 8. Temuan ini menegaskan pentingnya memilih frekuensi kerja mesin agar tidak berdekatan dengan natural frequency engine mounting. Selain itu, respon dinamis displacement maximum manunjukkan, perlunya perancangan yang cermat untuk mengurangi dampak vibrasi pada kinerja mesin. Penelitian lebih lanjut sebaiknya fokus pada pengembangan material dan desain yang dapat meminimalkan displacement maximum serta meningkatkan stabilitas struktur engine mounting
Studi Eksperimen Dampak Thermal Pengereman Pada Sistem Rem Cakram Satria, Andam; Afnison, Wanda; Waskito, Waskito; Yanti Sari, Delima
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v9i1.25422

Abstract

Penelitian ini bertujuan untuk mengetahui peningkatan suhu terhadap piringan cakram dengan tipe solid, ventilated, dan wave untuk sepeda motor matic. Metode penelitian yang digunakan adalah eksperimen dengan menentukan batasan waktu putar selama 5 menit dan tekanan pada tuas rem sebesar 40 psi. Bagaimana suhu pada piringan cakram meningkat seketika saat diberi tekanan dari kampas secara terus menerus. Peningkatan suhu yang terlalu tinggi ini lah yang bisa mengakibatkan kurangnya performa pengereman, ketika piringan cakram menjadi terlalu panas menyebabkan daya cengkram antara piringan cakram dengan kampas rem tidak bekerja dengan baik dan penurunan sistem kinerja rem. Peningkatan suhu yang berlebihan pada piringan cakram dapat menyebabkan penurunan daya cengkram antara piringan cakram dan kampas rem, yang berpotensi menyebabkan pengereman yang kurang efektif dan berbahaya, terutama pada situasi darurat atau pengereman mendadak. Oleh karena itu, pemilihan piringan cakram yang tepat sangat penting untuk menjaga kestabilan performa pengereman dan mengurangi risiko terjadinya kegagalan sistem rem.
Validasi Mesh Pada Simulasi Numerik Ground Effect Airfoil NACA 4412 Menggunakan Ansys Fluent Rizki Ramadhan Nasution, Muhammad; Yanti Sari, Delima; K, Arwizet; Fernanda, Yolli
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v9i1.27421

Abstract

Penelitian ini membahas validasi pengaruh jenis dan jumlah mesh terhadap hasil simulasi numerik fenomena ground effect pada airfoil NACA 4412 menggunakan perangkat lunak Ansys Fluent. Simulasi dilakukan pada kondisi dua dimensi dengan variasi tiga tingkatan mesh, yaitu mesh 1 (21.230 sel), mesh 2 (100.752 sel), dan mesh 3 (221.798 sel). Tujuan utama penelitian ini adalah untuk menentukan konfigurasi mesh yang optimal berdasarkan akurasi dan efisiensi waktu komputasi, serta memvalidasi hasil simulasi terhadap data eksperimen numerik dari penelitian sebelumnya oleh (Win & Thianwiboon, 2021). Parameter yang diamati meliputi koefisien lift (Cl), koefisien drag (Cd), kontur tekanan, dan kontur kecepatan. Validasi dilakukan dengan menggunakan metode uji independensi grid. Hasil menunjukkan bahwa mesh 2 memberikan kesesuaian terbaik terhadap data eksperimen dengan error Cl sebesar 2,12% dan Cd sebesar 15%. Simulasi menunjukkan bahwa peningkatan jumlah sel tidak selalu menghasilkan akurasi yang lebih baik. Oleh karena itu, pemilihan mesh yang tepat menjadi faktor penting dalam simulasi CFD yang efisien dan akurat.
Optimization of Artec Leo 3D Scanner parameters for object accuracy using the Taguchi Method Rhionaldo, Ananda Jafron; Rifelino, Rifelino; Sari, Delima Yanti; Prasetya, Febri
Journal of Engineering Researcher and Lecturer Vol. 4 No. 2 (2025): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v4i2.186

Abstract

This study focuses on optimizing the scanning parameters of the Artec Leo 3D Scanner to enhance scanning accuracy by minimizing geometric deviations. The experimental design utilizes the Taguchi L4(2³) orthogonal array method to examine the influence of three scanning factors: distance, angle, and lighting at two levels. A 16-inch car wheel, chosen for its geometric complexity, was scanned under various parameter combinations. The results indicated that the combination of indoor lighting, a 45° angle, and a scanning distance of 100 cm yielded the smallest deviation (0.5%) and the highest signal-to-noise (S/N) ratio (6.02 dB). Analysis of variance (ANOVA) revealed that the scanning distance contributed the most to the variation in scanning accuracy (65.09%), followed by lighting (34.64%) and angle (0.27%). A confirmation test with the optimal parameters further reduced the deviation to 0.4%, validating the effectiveness of the Taguchi method for parameter optimization. This study’s findings contribute valuable insights for industries that require high-precision 3D models, such as aerospace, automotive, and healthcare. The research demonstrates the importance of optimizing scanning parameters and offers a practical approach to improving 3D scanning processes. Future research can expand by exploring environmental conditions, scan resolution, and machine learning integration for real-time adjustments.
Peningkatan Produktivitas Masyarakat Tani di Nagari Bukik Sikumpa Lima Puluh Kota Melalui Penerapan Alat Pemipil Jagung Nurdin, Hendri; Waskito, Waskito; Hasanuddin, Hasanuddin; Sari, Delima Yanti
Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Vol 21, No 1 (2021): Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/sb.0770

Abstract

Umumnya kehidupan masyarakat Indonesia dipedesaan adalah bercocok tanam padi yang merupakan sektor pertanian, selain itu ada juga yang berladang jagung. Tanaman jagung merupakan tanaman pangan nasional kedua setelah padi. Jagung sebagai pakan ternak, memiliki pangsa pasar tersendiri di tengah masyarakat sehingga nilai komoditas pasarnya sangat baik. Dampak kondisi ini yang membuat kekuatan bisnis jagung menjadi sangat menguntungkan sehingga masyarakat beralih menanam jagung. Berdasarkan hasil survei dan diskusi dengan kelompok tani Mawar di Nagari Bukik Sikumpa Limapuluh Kota yang sebagian besar masyarakatnya berkehidupan sebagai petani. Perkebunan di Nagari ini lebih cenderung kepada tanaman jagung dikarenakan lebih memilih dalam perawatannya dan harga pasar yang lebih stabil (harga jagung Rp 3.700 per kilogram). Masa pertumbuhan jagung sampai dapat di panen hanya membutuhkan waktu ± 4 bulan. Permasalahan yang terjadi di masyarakat menyangkut dengan proses pemipilan jagung setelah panen. Masyarakat petani kesulitan melakukan proses pengolahan jagung setelah di panen diantaranya mulai dari pengupasan kulit jagung, pemipilan butir jagung, dan penggilingan butir jagung. Biasanya masyarakat petani melakukan proses pengolahan secara manual dengan pekerjaan tangan sehingga membutuhkan waktu yang lama dan melibatkan banyak pekerja dengan pembiayaan upah yang besar. Penerapan teknologi berupa rancang bangun alat pemipil jagung yang disampaikan ke masyarakat petani sebagai upaya meningkatkan produktivitas sehingga berdampak terhadap kesejahteraan dan membangun wawasan masyarakat menjadi sasaran dalam kegiatan program kemitraan masyarakat.
Co-Authors - Primawati Abd Aziz Abdul Aziz Abdul Aziz Abdullah, Adlan Azmi Adityo Adityo, Adityo Afdal Dinilhaq Afferli Seftian afriardhy, mudhya_amalia Agusriza Almalik Akbar, M. William Akram Ramadhan Al Afif Attorik Alfian Barwan, Esco Alparis Nico Putra Utama Altarisi, Muhammad Athar Ambiyar, Ambiyar Aminuyati Andika Putra Andira, Muhammad Fadil Andre Kurniawan Andre Kurniawan Andri, Suci Angga Hermawansyah Arafat, Andril Arfan Iswanda Arwizet Arwizet, Arwizet Asnil Asnil Bagas Santoso Bakar, Muhammad Jamil Budi Syahri Bulkia Rahim Carlen Muhammad Hendra Dani Harmanto Delfisanur Delfisanur Deswina, Melri Dinilhaq, Afdal Dori Yuvenda Dwi Sakti Putra Efendi, Fiki Efendi EKA RAHAYU Eko Indrawan Elmoudi, Muhammad Fatiy Ema Wulansari, Rizky Erika Afandi Fadillah, Fikri Fahrezi, Rangga Ashar Faisal Gustianto Fajero Tiffano Farid Permata Putra Fattahul Rizki Fauza, Anna Niska Fauzi, Azmul Febri Prasetya Fenda Lisman Fiki Efendi Fikri, M Fitrah Qalbina Fitrah Qalbina Hafizd Furqon Hamizum, Bestra Hasanuddin Hasanuddin Hasanuddin Hasanuddin Hasanuddin WS Hastuti Hastuti Hendri Nurdin Hesty Kumala Sani Hukmanul Fikri Irshan Sepriza Irzal Irzal Irzal Irzal Jasman Jasman Julian Berlin Roland Tobing Junil Adri Junil Ardi Kelvin Rahmat Syah M Febriyan Baruna Putra Maulana Rafi, Ikhsan Mega Oktaviani Miftahul Fikri Milana Milana Mochammad Imron Awalludin Muhammad Aulia Anugrah Muhammad Azim Muhammad Daffa Dzaky Muhammad Farhan Muhammad Iqbal Iski Muhammad Khattami Al Saidhi Muhammad Rizki Muhammad Rizki Anshari Muhammad Zainul Hasan Muklis Muklis Mulianti Mulianti Mulyadi Mulyadi Nabawi, Rahmat Azis Nelvi Erizon Nizwardi Jalinus Nurdin Hendri Nurwijayanti Oki Darwis Prima Putra Okky Syaifatul, Achmad Pasaribu, Reynaldy Peri Irawan Primawati Primawati Purwantono Purwantono purwantono purwantono Purwantono, Purwantono Putra, Nandri Pratama Putra, Romi Putra, Syafriade Rachman Setiawan Rahmadiawan, Dieter Rasyid Ridho Harahap Refdinal Refdinal Refdinal, Refdinal Remon Lapisa Remon Lapisa Resti Apriliyanti Rhionaldo, Ananda Jafron Richardo, Richardo Ricky Andrianto Rifelino Rifelino Rifelino Rihan Salim, Muhamad Rilgy Aulia Rizki Ramadhan Nasution, Muhammad Rodesri Mulyadi Salmat, Salmat Sani, Hesty Kumala Santoso, Bagas Saputra, Ilham Dwi Satria, Andam Sigit Dwi Lesmana Silfi Chorillah Putri Siregar, Batu Mahadi Sudjono, Aldo Alfattah Sukardi Sukardi Sukardi, Sukardi Syahril Syahril Tasyah Tasyah Tsung-Liang Wu Utami, Fathya Suci Wagino Wahyudi Wahyudi Wanda Afnison Waskito Waskito Waskito Waskito Waskito Waskito, Waskito Willyardo Putra Ramon Wulansari, Rizky Ema Yolli Fernanda Yopi Zekri Jenizah Putra Yopi Zekrri Jenizah Putra Yufrizal Yufrizal A Yufrizal Yufrizal Zainal Abadi Zainal Abadi Zuanda Maulana Nasution