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All Journal INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL PENDIDIKAN TAMBUSAI Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat Multidisiplin Teknomekanik Jurnal Vokasi Mekanika Tsaqofah: Jurnal Penelitian Guru Indonesia ALSYS : Jurnal Keislaman dan Ilmu Pendidikan MASALIQ: Jurnal Pendidikan dan Sains Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat Journal of Engineering Researcher and Lecturer Journal of Innovative and Creativity
Zainal Abadi
Universitas Negeri Padang
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Analysis and control of occupational safety risks using the HIRARC method in the Machining Workshop Anwar, Roki Putra; Kurniawan, Andre; Mulianti; Abadi, Zainal
Journal of Engineering Researcher and Lecturer Vol. 3 No. 2 (2024): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v3i2.142

Abstract

This qualitative study focuses on occupational safety and health in vocational school machining workshops to identify significant risks related to training practices. Workplace accidents are considered a serious threat to workers and equipment, potentially affecting productivity and environmental safety. Observations at several vocational schools, especially at SMK Negeri 1 Batipuh, showed low student awareness and compliance with OHS regulations, increasing the risk of risky behaviour and accidents. To address this, the research used the Hazard Identification, Risk Assessment, and Risk Control (HIRARC) method, which systematically identifies hazards, evaluates risks based on severity and likelihood, and proposes control measures. The research at SMK Negeri 1 Batipuh involved direct observation, interviews, and analysis of SOPs in the workshop, finding significant risk variations in workshop conditions, lathe operations, welding, material handling, hand tool use, and machine protection. The results highlighted the predominance of intermediate risks in all-hazards analyzed, emphasizing the importance of developing more effective risk management strategies. This research aims to reduce accidents and improve student safety during training by addressing existing OHS implementation gaps and implementing appropriate risk controls. In addition to filling a gap in the literature, this study provides practical insights for improving OHS practices in vocational schools.
The Optimization of Building Energy Consumption in Universitas Negeri Padang Using Building Energy Simulation Program Kurniawan, Andre; Qosim, Nanang; Lapisa, Remon; Abadi, Zainal; Jasman, Jasman
Teknomekanik Vol. 4 No. 1 (2021): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (296.064 KB) | DOI: 10.24036/teknomekanik.v4i1.9672

Abstract

Energy consumption of a building is one of the biggest sources of energy use today. Green Building Comitte Indonesia (GBCI) has launched a concept of energy consumption saving in a nationally standard building. Audit Building energy audit is the way to know how actual building energy consumption is and find alternative solution to decrease energy consumption in order to fulfill the energy saving building criteria. Two types of HVAC systems will be run in the EnergyPlus simulation, split AC and central AC. The previous research proved that central AC is better than split AC system for energy saving in the building with 20 floors. The simulation results show that by using a certain energy system, a more efficient energy system will be achieved and can still maintain the comfort of the room at a temperature of 24 °C and relative humidity according to the Green Building Indonesia standard reference.
Implementasi Pembelajaran Berbasis Proyek terhadap Hasil Belajar Siswa pada Pembelajaran Mesin Bubut Pratama, Yuhanda Dicky; Indrawan, Eko; Refelino, Refelino; Abadi, Zainal
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2110

Abstract

This study aims to analyze the project-based learning model on learning outcomes in class XI lathe subjects majoring in Mechanical Engineering SMK Negeri 1 Tanjung Raya. The type of research that the authors conducted was Quasi Experimental Design (pseudo / quasi experiment) research. The experimental research design used in this study was in the form of nonequivalent control group desaign. This study uses pre-test and post-test tests to students to see students' understanding before and after using the learning model, whether there is a good enough improvement after applying the learning model. Based on the results of research and discussion, Quasi-Experiment research in the subject of Lathe Machining Engineering class XI Machining Engineering SMK Negeri 1 Tanjung Raya can be concluded as follows. First, the project-based learning model in the experimental class in the Lathe Machining Engineering subject was successfully implemented in class XI of the Machining Engineering of SMK Negeri 1 Tanjung Raya. Second, student learning outcomes The acquisition of this final score increased from the previous average score of 53. Third, the skills and creativity of students in the subject of Lathe Machining Engineering Class XI Machining Engineering SMK Negeri 1 Tanjung Raya, carried out using a psychomotor assessment rubric and obtained an average score in the control class of 74 and the experimental class of 80.
Rancang Bangun dan Analisis Kinerja Turbin Angin Sumbu Vertikal Modifikasi Menggunakan Empat Buah Blade Habibie, Habibie; Lapisa, Remon; Irzal, Irzal; Abadi, Zainal
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2668

Abstract

The island country is a characteristic of Indonesia, and is located right on the equator stretching from the island of Sumatra to the island of West Papua. The need for electrical energy is increasing, but the energy generally used to produce electrical energy is fossil energy, and the problem faced by most countries, including Indonesia, is the problem of energy reduction. According to the International Energy Agency (IEA), the electricity needed is 14 terawatts per day, arguably the equivalent of 210 million barrels of oil. The objectives of this research are (1) to design a wind turbine using fiberglass as the basic material, (2) to make a turbine that can utilize wind energy for electricity generation purposes, and (3) to determine the performance of a modified 4-blade vertical wind turbine on the power it produces. can be generated. The type of research carried out uses experimental methods. The test results show that wind turbines made from fiberglass are able to achieve wind turbine efficiency of 50.7%. The conclusion drawn is that the researchers succeeded in designing a wind turbine from fiberglass as the basic material, the wind turbine can rotate properly and can produce electricity. The generator power produced increases as the wind speed increases. A wind turbine using 4 blades at a wind speed of 21.6 m/s, produces a rotation per minute of 250.6 rpm, produces 108.20 watts and a torque of 107.14 Nm.
Pengaplikasian Panel Surya dan Automatic Transfer Switch (ATS) untuk Menggerakkan Pompa Tanaman Hidroponik sebagai Sumber Energi Terbarukan Kurniawan, Muhammad Ridwan; Abadi, Zainal
MASALIQ Vol 4 No 3 (2024): MEI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i3.3011

Abstract

Solar panels are renewable energy which is very useful for agricultural needs to meet electricity needs, one of which is its application in agriculture, namely as a pump driver for hydroponic plants. Hydroponics is farming with an emphasis on meeting the nutritional needs of plants using water as a medium with a nutrient solution as fertilizer. In the hydroponic system the pump must be on continuously, for this reason the Automatic Transfer Switch (ATS) tool is used to substitute the electrical energy of the State Electricity Company (PLN) with the electrical energy of solar panels in the event of a power outage from the State Electricity Company (PLN) which aims to drain nutrient water. This research aims to apply solar panels to a hydroponic plant system and apply the Automatic Transfer Switch (ATS) tool as a substitute for the State Electric Company's (PLN) electrical energy and solar panels. This research was carried out on Jalan Polonia no.11 fresh water east, North Padang District, Padang City, West Sumatra in January – March 2024, with the initial stages (1) preparation, (2) solar panel assembly, (3) analysis of test results , (4) preparation of reports. The results of this research can determine the power output required by solar panels as a renewable energy source as well as the application of the Automatic Transfer Switch (ATS) in hydroponic plant cultivation.
Pengaruh Print Speed Pada Proses Ekstrusi 3D Printing Terhadap Kekuatan Tarik Dan Bending Hasil Cetakan Menggunakan Material PLA Mustaqin, Iqbal; Abadi, Zainal; Syahril, Syahril; Rifelino, Rifelino
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.v9i1.25055

Abstract

Teknologi 3D printing telah menjadi inovasi penting dalam berbagai bidang, terutama dengan penggunaan material ramah lingkungan seperti Polylactic Acid (PLA). Penelitian ini bertujuan untuk menganalisis pengaruh variasi kecepatan ekstrusi pada proses 3D printing terhadap kekuatan tarik dan kekuatan lentur (bending) hasil cetakan PLA. Metode eksperimen digunakan dengan variabel bebas berupa kecepatan cetak (40, 45, 50, 55, dan 60 mm/s) dan parameter tetap seperti suhu nozzle (210°C), suhu meja (60°C), ketebalan lapisan (0,2 mm), dan bentuk infill (triangle). Pengujian dilakukan di Laboratorium Manufaktur Universitas Negeri Padang pada 2024. Hasil penelitian menunjukkan bahwa kecepatan cetak optimal untuk kekuatan tarik tertinggi adalah 45 mm/s, sedangkan untuk kekuatan lentur terbaik tercapai pada kecepatan 50 mm/s. Data menunjukkan bahwa kecepatan cetak yang terlalu tinggi dapat menurunkan kekuatan tarik akibat lemahnya adhesi antar lapisan, sedangkan pada uji lentur, material menunjukkan performa yang baik bahkan pada kecepatan lebih tinggi. Penelitian ini memberikan rekomendasi kecepatan cetak optimal untuk meningkatkan kualitas cetakan PLA dalam aplikasi industri dan prototipe.
Analisis Pengaruh Campuran Serbuk Kayu Meranti dan Serat Tandan Kosong Kelapa Sawit Terhadap Uji Tarik dan Impak Komposit Rifai Adlani, M.; Mulianti, Mulianti; Rifelino, Rifelino; Abadi, Zainal
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.v9i1.25128

Abstract

Salah satu alternatif dalam pembuatan komposit adalah dengan menggunakan serbuk kayu meranti dan serat tandan kosong kelapa sawit yang tidak dapat di gunakan lagi dapat dimanfaatkan dalam pembuatan komposit dengan resin epoxy sebagai matrik. Pengujian ini di lakukan dengan menguji komposit uji tarik dan uji impak, dengan variasi spesimen resin epoxy 70 % dan serbuk kayu meranti / tandan kosong kelapa sawit 0/30, 10/20, 15/15, 20/10, 30/0 dan 100 % resin epoxy. Hasil dari penelitian ini diharapkan dapat digunakan untuk bahan asesoris seperti bemper mobil. Pembuatan spesimen dan prosedur pengujian yang mengacu pada ASTM D 638 Tipe 1 untuk tarik dan ASTM D 5942-96 untuk impak. Hasil dari pengujian tarik dan impak menunjukan kekuatan dari uji tarik yang terbesar adalah 35.575 MPa dengan variasi campuran 100% resin epoxy sedangkan kekuatan terendah untuk uji tarik adalah 13.89 MPa dengan variasi campuran 70% resin + 20 meranti + 10 % TKKS. dan ketangguhan impak yang terbesar adalah 0.28173 J/mm2 untuk variasi campuran 70 % resin + 15% meranti + 15% TKKS sedangkan kekuatan terendah untuk uji impact adalah 0,15695 J/mm2 untuk variasi campuran 70 % resin + 20% meranti + 10 % TKKS.
Karakteristik Sifat Mekanik Komposit Serat Bambu dan Serabut Kelapa Sebagai Material Bumper Mobil Fathur Rahman; Mulianti, Mulianti; Rifelino, Rifelino; Abadi, Zainal
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.v9i1.25234

Abstract

Industri otomotif membutuhkan material yang kuat, ringan, dan ramah lingkungan untuk komponen kendaraan. Material logam yang umum digunakan, seperti aluminium dan baja, biasanya berat dan tidak ramah lingkungan. Penelitian ini bertujuan untuk mengembangkan material komposit yang diperkuat serat bambu dan sabut kelapa sebagai bahan pembuatan bumper mobil. Dalam penelitian ini, dilakukan pengujian terhadap kekuatan tarik dan impak komposit dengan variasi campuran serat bambu dan sabut kelapa, serta resin polyester sebagai matriks. Metode yang digunakan adalah hand lay-up dengan variasi komposisi serat 10%, 15%, 20%, dan 30%. Hasil pengujian menunjukkan bahwa fraksi volume 30% serat sabut kelapa dan 70% resin menghasilkan kekuatan tarik sebesar 18,85 MPa dan harga impak 0,265173 J/mm². Nilai ini memenuhi standar kekuatan tarik dan impak untuk bumper mobil. Dengan demikian, penggunaan serat bambu dan sabut kelapa pada material komposit dapat menjadi alternatif berkelanjutan bagi industri otomotif, khususnya dalam pembuatan bumper mobil yang lebih ringan dan ramah lingkungan.
Tensile strength study of mensiang (scirpuss grossus) fibre composites with unsaturated polyester resin matrix Hakiim, Evan; Nurdin, Hendri; Abadi, Zainal; Zhuang, Wei-Ting
Journal of Engineering Researcher and Lecturer Vol. 4 No. 1 (2025): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v3i3.164

Abstract

The mensiang (scirpuss grossus) is a plant that grows on moist and watery land. Mensiang plants are commonly used by the society to produce mats or bags that have a strong and durable texture. This mensiang plant has fibres that can be used as reinforcement in polymer composites as a substitute for synthetic fibres. In composite manufacturing, one of the important factors in determining strength is the fraction between fibre and matrix. This study was conducted to determine the effect of different volume fractions of composites on the tensile strength of mensiang fibre reinforcement. Extraction of fibre from the stem of the mensiang plant was done manually by combing, so that the fibre was obtained. The fibres were then naturally dried by the sun for 2-3 days. The composite manufacturing process was carried out by using the hand lay-up method. Specimens and tensile testing procedures refer to the ASTM D638 standard. Several specimens were made by varying the fibre and matrix fractions. The test results showed that the 12.5% fibre volume fraction had the highest tensile strength. In this study there was no chemical treatment on the fibres before the lamination process, thus, this can be suggested for future researchers to study on the effect of chemical treatment on mensiang fibres on fibre bonding with the matrix.
Hubungan Self Efficacy dan Keaktifan Kegiatan Belajar Terhadap Hasil Belajar Siswa pada Mata Pelajaran SMAW Jurusan Teknik Mesin di SMKN 2 Kota Solok Syaputra, Afzan; Rahim, Bulkia; Jasman, Jasman; Abadi, Zainal
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.v9i1.26406

Abstract

Penelitian ini dilatarbelakangi berdasarkan permasalahan pada saat melakukan program pengalaman lapangan (PPL), yaitu kurangnya rasa kepercayaan diri dan tidak aktifnya peserta didik pada saat melakukan pembelajaran yang menyebabkan rendahnya hasil belajar peserta didik terkhusus mata pelajaran SMAW di kelas XI SMK Negeri 2 Kota Solok. Jenis penelitian ini termasuk dalam penelitian kuantitatif. Penelitian ini dilakukan dengan cara penyebaran angket dan uji kompetensi soal kepada peserta didik yang berjumlah 45 orang. Teknik pengumpulan data pada penelitian ini yaitu dengan pengisian lembar koesiuner, lembar soal, dan dokumentasi. Teknik analisis yang dijadikan data kuantitatif yaitu hasil pengisian angket, hasil uji kompetensi soal untuk melihat apakah ada hubungan kepercayaan diri peserta didik terhadap hasil belajar dan apakah ada hubungan keaktifan belajar peserta didik terhadap hasil belajar. Berdasarkan penelitian yang telah dilakukan dapat disimpulkan bahwa hubungan self efficacy terhadap hasil belajar mempunyai hubungan yang signifikan, hal tersebut dibuktikan dengan hasil signifikasinya 0.000 < 0.05 dan nilai pearson yang didapat yaitu 0.503 yang menandakan bahwa hubungannya cukup besar. Untuk hasil penelitian hubungan keaktifan belajar terhadap hasil belajar juga menunjukkan hubungan yang signifikan, hal tersebut dibuktikan dengan hasil signifikansinya 0.002 < 0.05 dan nilai pearson yang didapat 0.454 yang menandakan bahwa hubungannya cukup besar. Dengan demikian self efficacy dan keaktifan belajar mempunyai hubungan untuk meningkatkan hasil belajar peserta didik pada mata pelajaran SMAW di SMK negeri 2 Kota Solok.
Co-Authors - Primawati Afriza Media Ahlal Fikri, Rivandy Akbar, Irfan Muhammad Akbar, M. William Alan Putra Ambyar Ambyar Ananda, Opi Andre Kurniawan Andre Kurniawan Andri, Junil Andrian Saputra Angga Hermawansyah Anggara, Diki Anwar, Roki Putra Arafat, Andril Arif Rachman Hakim Arifin Jannuar Arwizet Arwizet, Arwizet Aslfattahi, Navid Berry Delfi Andra Budi Syahri Bulkia Rahim Daffa Raihan Senthot Delima Yanti Sari Dicky Pratama Fernando Dori Yuvenda Eko Indrawan Enggian Lubis Erizon, Nelvi Fathur Rahman fatur Rahman, fatur Fauza, Anna Niska Febri Prasetya Fiki Efendi Fikriyyah Hilmy Ardana Firdaus Firdaus Fitra, Dinul Fonny Maswija Priscilla Ghozali, Rahmatul Gifan Ainul Mukhrim Gilang Sanjaya Habib Indra Satrianto Habibie Habibie Hafizd Syahiran nst Hakiim, Evan Ibnu Hafiz Wardhana Imam Qulugqin Azhim Indra, Yoan Alfarezy Irma Yulia Basri Irzal Irzal Irzal, Irzal Jasman Jasman Jasman Kurniawan, Muhammad Ridwan Miswar Miswar Muhammad Aulia Anugrah Muhammad Iqbal Muhammad Iqrha Muhammad Riski Hidayat Muhammad Subakti Muharam, Bananda Mulianti Mulianti Mustaqin, Iqbal Nabawi, Rahmat Azis Nanang Qosim Nelvi Erizon Nensy Aryasandy Nofri Pratama Putra Nur Ichsan Abdillah Nurdin Hendri Pratama, Yuhanda Dicky Primawati Primawati, Primawati purwantono purwantono Purwantono Purwantono Purwantono, Purwantono Putra, Kevinda Putra, Randi Purnama Putra, Rido Rahmad Robby Alzam Rahmadiawan, Dieter Rahmat Mardiansyah Putra Rahmatul Fauzan Mulyadi Ramadhan, Athaya Ramadhan, Qadri Refdinal, Refdinal Refelino, Refelino Remon Lapisa Ressi Novia Windri Rifai Adlani, M. Rifaldo Novembli Rifelino Rifelino Rifelino Rifelino Rifelino Riki Ardianto Rilgy Aulia Rizaldi, Ahmad Rizky Ema Wulansari Rozaki Yudha, Hatami Salwa Chairani Santos, Thiago F. Saputra, Muhammad Pandi Shi, Shih-Chen Susi Marisa Syahril Syahril Syahril Syaputra, Afzan Syauqi Arjunanda Tasyah Tasyah Taufiqul Hamid Teki Haryono Wahyu Ivan Pramana Wahyu Pratama Wahyudi Wahyudi Wanda Afnison Waskito Waskito Waskito Waskito Waskito, Waskito yahril yahril Yandi Saputra Yolli Fernanda Yopi Zekri Jenizah Putra Yopi Zekrri Jenizah Putra Yufrizal Yufrizal Yufrizal Yufrizal, Yufrizal Zhuang, Wei-Ting