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All Journal CIVED (Journal of Civil Engineering and Vocational Education) Mechanical Engineering Education Journal Sainstek Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Teknomekanik Fokus Elektroda: Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Jurnal Vokasi Mekanika Fleksibel: Jurnal Pengabdian Kepada Masyarakat
Yolli Fernanda
Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Transportation

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KARAKTERISTIK PEMBAKARAN SMALL BATCH HUSK GASIFIER DENGAN MENGGUNAKAN VARIABLE SPEED BLOWER Fernanda, Yolli
Sainstek VOL 07, NO 02, 2013
Publisher : Jurnal Sainstek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.217 KB)

Abstract

We made the design for the rice husk gasifier stove with the supply air using a blower. Retrieved reactor diameter is 15 cm and height 70 cm. The maximum operating time obtained is 43 minutes with maximum efficiency approaching 15%. Air supply during the operation of the furnace must be set up to fire over. Comparing with the furnace designed to research conducted by Belonio, 2005, the results was close enough, especially for the operating time and efficiency tools. The problem in this design is fan supplied air supply has current greater than the Belonios design.
tes1 fernanda, yolli
Mechanical Engineering Education Journal Vol 1, No 1 (2012)
Publisher : Teknik Mesin Faklutas Teknik UNP

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Abstract

test1
Hubungan Sikap Belajar Terhadap Hasil Belajar Siswa Kelas X Teknik Mesin fernanda, yolli
Mechanical Engineering Education Journal Vol 1, No 1 (2012)
Publisher : Teknik Mesin Faklutas Teknik UNP

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Abstract

Hubungan Sikap Belajar Terhadap Hasil Belajar Siswa Kelas X Teknik MesinPada Mata Pelajaran Gambar Teknik Di Smkn 1 Pariaman
FLOW-INDUCED TRANSVERSE VIBRATION CHARACTERISTICS OF CANTILEVERED RECTANGULAR AND D-SECTION STRUCTURE FOR ENERGY HARVESTING Kadir, Kadir; Barata, La Ode Ahmad; Kiwata, Takahiro; Fernanda, Yolli
Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Vol 5, No 2 (2020): Jurnal Elektroda Vol 5 No 2
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jfe.v5i2.12298

Abstract

We considered the effect of aspect ratio L/H (where L is span length of a prism, and H is the height of a bluff body normal to the flow direction) on the response amplitude of cantilevered rectangular and D-shaped cross-section prims for energy harvesting. The prism was mounted elastically to a plate spring attached to the ceiling wall with a jig in the test section of the water tunnel. The prism with an aspect ratio of L/H = 2.5 has a small angle amplitude as compared to that with L/H ≥ 5. Increment rate of response amplitude of prisms increased proportionally with the aspect ratio. The D-section prism with an aspect ratio of L/H = 10 has a stable peak amplitude and a large increment rate of response amplitude. Therefore, the D-section prism with L/H = 10 is a more suitable cross-section for energy harvesting from transverse-galloping vibration. By using magnetostricitve material as harvester energy, potential power gained from small side ratio for both prism that is 0.99 and 0.48 volt for D-section and rectangular prisms respectively.  Keywords—Flow-induced vibration, Cantilevered prism, Rectangular prism, D-section prism, Aspect ratio
FLOW-INDUCED TRANSVERSE VIBRATION CHARACTERISTICS OF CANTILEVERED RECTANGULAR AND D-SECTION STRUCTURE FOR ENERGY HARVESTING Kadir, Kadir; Barata, La Ode Ahmad; Kiwata, Takahiro; Fernanda, Yolli
Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Vol 5, No 2 (2020): Jurnal Elektroda Vol 5 No 2
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jfe.v5i2.12298

Abstract

We considered the effect of aspect ratio L/H (where L is span length of a prism, and H is the height of a bluff body normal to the flow direction) on the response amplitude of cantilevered rectangular and D-shaped cross-section prims for energy harvesting. The prism was mounted elastically to a plate spring attached to the ceiling wall with a jig in the test section of the water tunnel. The prism with an aspect ratio of L/H = 2.5 has a small angle amplitude as compared to that with L/H ≥ 5. Increment rate of response amplitude of prisms increased proportionally with the aspect ratio. The D-section prism with an aspect ratio of L/H = 10 has a stable peak amplitude and a large increment rate of response amplitude. Therefore, the D-section prism with L/H = 10 is a more suitable cross-section for energy harvesting from transverse-galloping vibration. By using magnetostricitve material as harvester energy, potential power gained from small side ratio for both prism that is 0.99 and 0.48 volt for D-section and rectangular prisms respectively.  Keywords—Flow-induced vibration, Cantilevered prism, Rectangular prism, D-section prism, Aspect ratio
Analysis of Tensile Strength the Fiber Bagasse Particles Board with Resin Adhesives Hendri - Nurdin; Yolli Fernanda; Meisuri Handayani
Teknomekanik Vol 1 No 1 (2018): Teknomekanik
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (157.596 KB) | DOI: 10.24036/tm.v1i1.172

Abstract

Development of the material be in the form of Particles it is possible to do so it can be an alternative to wood. Particle board is an engineered material that utilizes waste bagasse after sugar cane extraction process as an amplifier and as an adhesive used resin. Particle boards that have been produced, generally using wood powder, while the use of wood has been limited and diminished due to difficulty getting it. So the need for development in engineering the main material particle board in the form of wood powder and replace it with waste bagasse. The particle board manufacturing process is carried out by forging (compacting) between the mixture of sugarcane pulp particles and the BQTN 157 Resin adhesive. Percentage of mixed usage 50: 50 based on the fraction of weight and volume. In obtaining the mechanical properties carried out by tensile testing. From this research, the average particle pull strength is 1.81 MPa, strain 13,52% and elasticity 0,013 GPa. In obtaining particle board as an engineering material that has good ability influenced many things such as particle (mesh) raw material, adhesive use, mixed composition, the process of forging. From the characteristics of the test results obtained so that the particle board of the bagasse with resin adhesive is very possible to replace the type of particle board made from raw wood powder.
The Variation Effect of Electric Current Toward Tensile Strength on Low Carbon Steel Welding with Electrode E7018 Muhammad Agung Pratomo; Jasman Jasman; Nelvi Erizon; Yolli Fernanda
Teknomekanik Vol 3 No 1 (2020): Teknomekanik
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (457.074 KB) | DOI: 10.24036/tm.v3i1.5572

Abstract

The strength of the welding result is strongly influenced by several factors, one of which is the selection of high current. This study aims to determine the effect of high current of welding on the strength of low carbon steel welding joints. The process of welding the material uses the open V seam connection type. The variations of the high current used were 80 A, 100 A and 130 A. The specimen used was a carbon steel plate with code of 1.0038 with thickness of 8 mm and the electrode used was the E7018 electrode with diameter of 3.2 mm. The strength of the welding results is influenced by arc voltage, amount of current, welding speed, amount of penetration and electric polarity. Determination of the amount of current in metal joints using arc welding affects the work efficiency and welding materials. Based on the research, it was found that welding using high current of 100 ampere produced the highest tensile strength value of all test specimens that were given welding treatment and good penetration results.
HUBUNGAN PERSEPSI SISWA TENTANG PELAKSANAAN PRAKTEK KERJA INDUSTRI DENGAN KESIAPAN MEMASUKI DUNIA KERJA JURUSAN TEKNIK PEMESINAN SMK NEGERI SE-KOTA PADANG Syaiful Salim; Yufrizal A; Ambiyar Ambiyar; Yolli Fernanda
Jurnal Vokasi Edukasi (VomEk) Vol 2 No 3 (2020): Jurnal Vokasi Mekanika
Publisher : Jurusan Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (374.635 KB) | DOI: 10.24036/vomek.v2i3.113

Abstract

Siswa belum mampu menerapkan apa yang dipelajari disekolah pada tempat siswa tersebut melaksanakan Praktek Kerja Industri. Dunia kerja kurang percaya memberikan kesempatan kepada siswa untuk melaksanakan Praktek Kerja Industri sebagaimana mestinya. Serta Praktek Kerja Industri belum terlaksana sesuai dengan tujuannya. Tujuan penelitian ini untuk mengetahui hubungan antara Persepsi Siswa Tentang Pelaksanaan Praktek Kerja Industri dengan Kesiapan Memasuki Dunia Kerja Jurusan Teknik Pemesinan SMK Negeri Se-Kota Padang. Metode penelitian yang digunakan adalah kuantitatif korelasional yaitu untuk menentukan tingkat hubungan variabel yang berbeda bertujuan untuk mengetahui bagaimana hubungan variabel (X) dengan variabel (Y). Penelitian ini dilakukan pada bulan Juni pada siswa Jurusan Teknik Pemesinan di SMKN 1 Sumbar, SMKN 1 Padang dan SMKN 5 Padang dengan jumlah populasi 166 siswa. Teknik sampling yang dipakai adalah random sampling sejumlah 117 siswa. Berdasarkan hasil penelitian yang dilakukan pada 117 siswa terdapat hubungan antara Persepsi Siswa Tentang Pelaksanaan Praktek Kerja Industri dengan Kesiapan Memasuki Dunia Kerja Jurusan Teknik Pemesinan SMK Negeri Se-Kota Padang dengan nilai korelasi (r) atau r hitung sebesar 0.420 > 0.182 r tabel.
PENERAPAN MODEL PEMBELAJARAN BLENDED LEARNING UNTUK MENINGKATKAN KREATIVITAS DAN HASIL BELAJAR SISWA DI SMK NEGERI 2 SAWAHLUNTO Handrianto Handrianto; Ambiyar Ambiyar; Syahril Syahril; Yolli Fernanda
Jurnal Vokasi Edukasi (VomEk) Vol 4 No 1 (2022): Jurnal Vokasi Mekanika
Publisher : Jurusan Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (271.218 KB) | DOI: 10.24036/vomek.v4i1.304

Abstract

Penelitian ini mendeskripsikan mengenai diterapkannya model Blended Learning di mata pelajaran Pekerjaan Dasar Teknik Mesin (PDTM) untuk meningkatkan kreativitas dan hasil belajar siswa. Karena selama pengamatan peneliti semasa PLK di SMK 2 Sawahlunto, pembelajaran cenderung kaku dan kurangnya variasi dalam model pembelajaran. Metode yang dipakai yakni Penelitian Tindakan Kelas (PTK)). Pelaksanaan penelitian ini berpusat kepada penerapan model Blended Learning pada kelas X Teknik Pemesinan 3 di SMK Negeri 2 Sawahlunto dengan subjek penelitian sebanyak 27 siswa. Berdasarkan data yang diperoleh, persentase kreativitas belajar siswa pada siklus I sebesar 60,03%, meningkat di siklus0II menjadi 80,2% dengan kategori tercapai. Peningkatan hasil belajar juga terjadi peningkatan, siklus I klasikal yang didapat ialah 66,6%, dan pada siklus II meningkat sebesar 84,3% yang dikategorikan tercapai. Dilihat dari hasil pengamatan yang dilakukan sebelum tindakan, permasalahan yang ditemukan sesuai dengan pengamatan peneliti ketika PLK kurangnya minat belajar dan hasil belajar siswa yang belum tercapai KKM, untuk mengatasi permasalahan tersebut peneliti mencoba pengenalan model pembelajaran Blended Learning. Dengan harapan bisa dijadikan acuan dalam meningkatkan kreativitas dan hasil belajar untuk mata pelajaran Pekerjaan Dasar Teknik Mesin (PDTM) di kelas X Teknik Pemesinan 3 SMK Negeri 2 Sawahlunto. Sehingga diartikan dengan menerapkanomodel pembelajaran Blended Learning dapat meningkatkan kreativitas dan hasil belajar siswa.
HUBUNGAN FASILITAS BENGKEL TEKNIK MESIN SMK NEGERI 5 PADANG TERHADAP MINAT BELAJAR SISWA PADA MATA DIKLAT PEKERJAAN DASAR TEKNIK MESIN Muhammad Riski Hidayat; Irzal Irzal; Yolli Fernanda; Zainal Abadi
Jurnal Vokasi Edukasi (VomEk) Vol 4 No 2 (2022): Jurnal Vokasi Mekanika
Publisher : Jurusan Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.429 KB) | DOI: 10.24036/vomek.v4i2.362

Abstract

Fasilitas bengkel ialah salah satu faktor yang diperhatikan guna mengembangkan ilmu siswa, kurangnya alat yang ada di workshop membuat peralatan yang tidak layak untuk digunakan secara maksimal, dari permasalahan tersebut dapat membuat siswa kelas X kebetulan siswa baru belum mengenal tentang alat workshop di sekolah, yang membuat tidak cukupnya minat siswa dalam menjalani pembelajaran terutama pembelajaran Dasar Perancangan Teknik Mesin yang berkaitan langsung oleh bengkel yang ada di sekolah. Tujuan penelitian ini yaitu untuk megetahui hubungan alat bengkel dengan minat belajarr siswa pada Mata Pelajaran Basis Perancangan Teknik Mesin. Metode penelitian yang dipakai adalah penelitian kuantitatif dengan pendekatan deskriptif. Hasil analisa data dapat diketahui hubungan fasilitas bengkel Teknik Mesin SMK Negeri 5 Padang tentang minat belajar siswa pada mata diklat Pekerjaan Dasar Teknik Mesin mengenai pembelajaran PDTM diperoleh informasi bahwa hubungan fasilitas terhadap minat belajar pada seluruh indikator didapatkan rata-rata sebesar 83,98% dikategorikan baik. maka dapat ditarik kesimpulan bahwa, nilai hubungan dari hasil data angket dengan sampel sebanyak 67 responden didapatkan 24 item pernyataan dengan skor 1-4, persentase responden sebesar 83,98%. Hubungan Fasilitas dengan minat belajar mengenai pembelajaran PDTM dapat dikategorikan Cukup dengan melihat hasil persentase dari capaian responden yang di dapat melalui angket.
Co-Authors Adam Mandra Suwandi Akhmad Rais Ambiyar, Ambiyar Andika Putra Andre Kurniawan Andre Kurniawan Arafat, Andril Arwizet K Ashekul Islam Budi Syahri Delima Yanti Sari Dwi Sakti Putra DWI SURYANTO Elvira Zondra Firma Yulianis Fitri Amelia Fonny Maswija Priscilla Handrianto Handrianto Hendri Nurdin Irzal Irzal Jasman Joko Suprianto Kiwata, Takahiro La Ode Ahmad Barata Mega Oktaviani Meisuri Handayani Mochammad Haikal Muhammad Agung Pratomo Muhammad Akhbar Muhammad Riski Hidayat Muhammad Shiddiq Nelvi Erizon Nurdin Hendri Purwantono Purwantono purwantono purwantono Refdinal, Refdinal Ridhatul Arif Riky Satria Sherly Rahmayani Sri Rizki Putri Primandari Syahril Syahril Syaiful Salim Teki Haryono Usin Usin Willy Vernando Yufrizal Yufrizal Yusmaita, Eka Zainal Abadi