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All Journal TEKNIK Rotasi Jurnal Simetris Jurnal Teknologi Jurnal Mechanical DINAMIKA Jurnal Ilmiah Teknik Mesin Media Mesin: Majalah Teknik Mesin VANOS Journal of Mechanical Engineering Education Jurnal Rekayasa Mesin JMPM (Jurnal Material dan Proses Manufaktur) Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Elemen Jurnal Teknik Mesin Indonesia Infotekmesin STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Abdi Masya Journal of Mechanical Engineering Jurnal Rekayasa Energi dan Mekanika JUKESHUM: Jurnal Pengabdian Masyarakat Perwira Journal of Science and Engineering (PJSE) Teknika Bengawan :Jurnal Pengabdian Masyarakat Jurnal Pengabdian dan Pemberdayaan Masyarakat Indonesia Jurnal Foundry Nozzle : Journal Mechanical Engineering Perwira Journal of Community Development (PJCD) Jurnal Polimesin
Nurdin, Akhmad
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Aerospace Engineering Agriculture, Biological Sciences & Forestry 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 Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Other

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THE EFFECT OF WEBBING ANGLE ORIENTATION ON PHYSICAL AND MECHANICAL PROPERTIES OF BOEHMERIA NIVEA FIBER COMPOSITES Fajar Perdana Nurrullah; Fajar Paundra; Anas Maulana; Abdul Muhyi; Akhmad Nurdin; Indriyani Indriyani
Media Mesin: Majalah Teknik Mesin Vol 24, No 1 (2023)
Publisher : Program Studi Teknik Mesin, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v24i1.18406

Abstract

Composites are a combination of two or more different materials with different mechanical properties. The purpose of this research was to determine the effect of the angle orientation of the Boehmeria Nivea fiber-reinforced composite woven on the physical and mechanical properties. Boehmeria Nivea fiber is soaked in an alkaline solution and made into ropes with a diameter of 2-3 mm and then woven with angle orientations of 0o/15o, 0o/30o, 0o/45o and 0o/90o. The composite manufacturing process uses the press molding method. The tests in this study consisted of a tensile test with the ASTM D3039 standard, a flexural test with the ISO 178 standard and a density test with the ASTM C271 standard. Tensile test results show that the highest tensile strength occurs at 0°/15° webbing angle orientation, which is 13.77 Mpa. While the highest bending test results occur at the orientation of the 0°/15° webbing angle, which is 60.52 MPa. Tensile and flexural strength increases with smaller webbing angle orientation.
Optimization of Digital Marketing as an Effort to Expand the Reach of Promotion of MSME Products Assist by Village Enterprises Ngerangan Jaya Akhmad Nurdin; Sabtun Ismi Khasanah; Joko Istiyanto; Sinta Rizky Anggraini; Lilik Patonah
Jurnal Pengabdian dan Pemberdayaan Masyarakat Indonesia Vol. 1 No. 12 (2021)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/jppmi.v1i12.57

Abstract

Currently MSME sector can be seen in everyday life, starting from face to face directly or through digital media. The digital era has changed people's social activities increasingly with the emergence of various digital social media, and the social media is a gathering place for individuals and groups who are active and communicate with each other, and has been a strategic part of a business's product. Ngerangan village is currently known as the forerunner village of angkringan, and beginning in mid-2021 through the Village Enterprises Ngerangan Jaya will develop the Ngerangan Tourism Village by utilizing the potential of each hamlet area, there are several MSME products and businesses produced are assist by the Village Enterprises Ngerangan Jaya. Based on the situation analysis and interviews with the management of the Village Enterprises Ngerangan Jaya, the Ngerangan Tourism Village has several problems, one of the problems of this tourist village is the lack of understanding of residents about the use of information technology in tourism development which plays a role in providing information. From the analysis of the situation, the purpose of this activity is to equip and provide training to active members of MSME in each hamlet in Ngerangan Village to utilize social media as a means of digital marketing. This community service activity was carried out in Ngerangan Village, Bayat District, Klaten Regency by the Politeknik Manufaktur Ceper Community Service Team.
Studi Modifikasi Geometri Sudu pada Turbin Air Propeller Menggunakan Metode Elemen Hingga Darsono, Febri Budi; Nurdin, Akhmad; Widodo, Rahmat Doni; Rusiyanto, Rusiyanto
Jurnal Rekayasa Mesin Vol 16, No 3 (2021): Volume 16, Nomor 3, Desember 2021
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v16i3.2498

Abstract

Desain kekuatan turbin air propeller berdasarkan ketahanan terhadap pembebanan gaya aksial dari air. Pembebanan gaya aksial pada turbin air propeller menyebabkan tegangan bending pada sudu dan berpotensi terjadi kegagalan sudu pada struktur turbin. Tujuan dari penelitian ini untuk membandingkan kekuatan modifikasi desain geometri turbin air propeller, yaitu penambahan fillet pada sisi hub sudu dan penambahan ketebalan sudu. Pengambilan data penelitian ini dengan Metode Elemen Hingga menggunakan Solid Works Simulation 2016 dan pembebanan pada sudu dengan tekanan statik. Hasil akhir penelitian ini menunjukkan bahwa modifikasi desain geometris dengan penambahan ketebalan sudu lebih meningkatkan faktor keamanan dibandingkan penambahan fillet pada sisi hub sudu.
INVESTIGATION OF THE EFFECT OF MESH SIZE AND FRACTION VOLUME ON BENDING STRENGTH CHARACTERISTICS OF GEOPOLYMER COMPOSITE Ridwan Afandi; Muhammad Munadi; Fajar Paundra; Sri Hastuti; Akhmad Nurdin
Media Mesin: Majalah Teknik Mesin Vol 24, No 2 (2023)
Publisher : Program Studi Teknik Mesin, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v24i2.21865

Abstract

Composite material is a material consisting of two or more type materials that have different properties, by combining macroscopically, and good interfacial bonds from one material to another. Currently, polymer composite materials are widely applied in the land, sea, and air transportation industries, moreover polymer composites with fire resistance properties have been developed with the addition of geopolymer that has the advantage of producing high performance. This study aims to determine the effect of mesh size and volume fraction of lightweight brick powder on flexural strength. The benefits of this research directly increase the economic value of lightweight brick waste and produce a tough advanced material at a low cost. The composite filling material used lightweight brick waste and sieved using a sieve with a level of 50, 100, 150, and 200 at a volume fraction of 45%, and a volume fraction of 0%, 15%, 30%, 45%, and 60% at a mesh 200. While the composite matrix used the thermoset polymer Ripoxy R-804. Based the result, addition of lightweight brick powder with variations in particle size of the lightweight brick powder and volume fraction showed a decrease in flexural strength resistance compared to those without lightweight brick powder.
PEMANFAATAN SEKAM PADI SEBAGAI MATERIAL ISOLASI PANAS PADA RISER SLEEVE Tri Daryanto; Akhmad Nurdin; Rafidan Triadji
JURNAL FOUNDRY Vol. 5 No. 1 (2022): JURNAL FOUNDRY
Publisher : LPPM Politeknik Manufaktur Ceper

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62944/jf.v5i1.50

Abstract

Biaya produksi yang tinggi menjadi hambatan pelaku usaha untuk mencapai prinsip keekonomian, salah satunya penggunaan material yang berbasis impor. Pada proses pengecoran logam dibutuhkan beberapa saluran, salah satunya saluran penambah atau disebut riser sleeve dengan material kalminex mixing yang diimpor dari negara lain. Material sekam padi memiliki kandungan unsur karbon dan silika yang cukup tinggi dan bersifat rambat panas yang baik, sehingga berpotensi sebagai material riser sleeve. Sekam padi bersifat limbah jumlahnya melimpah secara langsung dapat digunakan sebagai material riser sleeve dengan tambahan lempung sebagai pengikat. Tujuan dari penelitian ini membandingkan hasil pengecoran logam antara riser kalminex mixing dengan riser sekam padi. Penelitian ini dimulai membuat spesimen dengan material sekam padi-lempung dan riser sleeve kalminex mixing, material logam yang digunakan chromium hard cast. Tahap pengujian penelitian ini meliputi pengujian tarik, dan pengujian bakar pada material riser. Selain itu, penelitian ini juga menghitung laju perpindahan panas, dan kemampuan suplai pada hasil pengecoran logam. Peneltian ini menunjukkan hasil pengujian yang tidak berbeda jauh antara riser slevee bermaterial sekam padi-lempung dengan riser slevee bermaterial kalminex mixing, sehingga riser slevee bermaterial sekam padi-lempung layak digunakan.
PENGARUH VOLTAGE PADA PROSES THERMAL SPRAY ALUMINIUM TERHADAP KEKUATAN IKATAN LAPISAN COATING PADA BAJA ST60 Maulana Aziz Hidayanto; Catur Pramono; Sri Hastuti; Akhmad Nurdin; Ibnu Rosyid Al Hassany; Larasanto Larasanto; Bramono Pandupradityo
JURNAL FOUNDRY Vol. 6 No. 2 (2023): JURNAL FOUNDRY
Publisher : LPPM Politeknik Manufaktur Ceper

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62944/jf.v6i2.73

Abstract

Thermal spray aluminium adalah salah satu jenis teknologi rekayasa coating. Sifat utama yang menunjukkan kualitas proses thermal spray adalah kekuatan ikatan. Voltage pada thermal spray aluminium secara signifikan mempengaruhi kekuatan ikatan dan kemampuan bending lapisan. Tujuan dari penelitian ini yaitu menganalisis pengaruh voltage pada proses thermal spray aluminium terhadap kekuatan ikatan lapisan coating pada baja ST 60. Jenis pengujian yang dilakukan yaitu pengujian pull off adhesion, uji bending dan pengamatan SEM (Scanning Electron Microscope). Penelitian ini menggunakan metode eksperimen dengan jumlah 27 spesimen yang mendapatkan perlakuan berbeda dalam setiap proses pengerjaannya, yaitu variasi voltage 26 V, 32 V dan 38 V. Hasil penelitian ini menunjukkan bahwa voltage yang digunakan berpengaruh pada kekuatan ikatan lapisan coating pada baja ST 60. Nilai kekuatan ikatan dan kemampuan bending lapisan paling baik didapat dari proses penyemprotan dengan voltage 38 V dengan nilai kekuatan ikatan lapisan coating 10, 24 MPa dan tidak ada retakan pada lapisan ketika dibengkokkan. Peningkatan nilai voltage yang digunakan pada thermal spray meningkatkan nilai kekuatan ikatan dan kemampuan bending lapisan
Analisa Pengaruh Penambahan Seacoal Terhadap Karakteristik Pasir Cetak Greensand Lutiyatmi Lutiyatmi; Rustam Sidiq; Hariningsih Hariningsih; Akhmad Nurdin
Perwira Journal of Science & Engineering Vol 4 No 1 (2024)
Publisher : Universitas Perwira Purbalingga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/pjse.v4i1.266

Abstract

Pengecoran logam adalah proses yang menghasilkan produk, dengan menggunakan media cetakan pasir greensand. Cetakan pasir greensand mudah dibuat dan dapat didaur ulang serta lebih murah. Komposisi pasir grensand utamanya adalah pasir silika, air, bentonite dan bahan aditif. Bahan aditif memiliki peranan penting dalam perubahan sifat pasir cetak greensand, salah satu bahan tersebut adalah seacoal. Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh penambahan bahan aditif seacoal terhadap karakteristik cetakan greensand, sedangkan komposisi dengan menambahkan variasi seacoal sebesar 0,4%, 0,9 %, dan 1,8 %. Pengujian pasir cetak yang dilakukan meliputi pengujian kadar air, kadar clay, kuat tekan dan GFN. Komposisi standar pasir greensand diuji sebagai standar utama yaitu 0% (tanpa menggunakan seacoal) dibandingkan dengan variasi pasir greensand dengan penambahan seacoal. Hasil pengujian menunjukkan perubahan nilai uji kadar air dan kadar clay yang mengalami kenaikan sebelum ditambah seacoal dibanding setelah penambahan variasi 0,4%, namun selanjutnya terjadi kenaikan pada variasi  penambahan 4%, 0,9% dan 1,8%.  Untuk GFN hasil uji terjadi penurunan dari semua variasi. Pengujian permeabilitas terjadi peningkatan nilai uji awal, namun pada variasi 4%, 0,9% dan 1,8% nilai uji mengalami penurunan. 
KAJIAN POTENSI DAN PENGEMBANGAN TURBIN ANGIN DAERAH URBAN Akhmad Nurdin
Nozzle : Journal Mechanical Engineering Vol 11, No 1 (2022): Nozzle : Journal Mechanical Engineering
Publisher : Politeknik Harapan Bersama Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/nozzle.v11i1.3286

Abstract

In urban areas, wind turbines can be integrated into buildings or called building integrated wind turbines. On the other hand, wind patterns in urban areas are turbulent and have more complex problems. The wind characteristics of a region are different, this is influenced by ground surface conditions. Conditions of high roughness length values, such as urban areas, create a large turbulent zone, besides that at the same time the wind pound buildings and other objects, causing a wind vortex profile. This study discusses the characteristics of the wind and the feasibility of the potential application of wind turbines in urban or urban areas. The purpose of this study was to discuss the phenomenon and potential of wind in urban areas and to review several studies on the application of wind turbines in urban areas.
Pengenalan Program Keselamatan dan Kesehatan Kerja Melalui Penerapan 5S Pada Siswa SMK Leonardo Klaten Ibnu Rosyid Al Hassany; Akhmad Nurdin
Perwira Journal of Community Development Vol 4 No 1 (2024)
Publisher : Unperba Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/pjcd.v4i1.268

Abstract

SMK Leonardo merupakan salah satu penyelenggara pendidikan jenjang Sekolah Menengah Kejuruan yang terletak di Kecamatan Klaten Utara Kabupaten Klaten. SMK Leonardo memiliki beberapa jurusan, salah satunya jurusan Permesinan dengan pembelajaran praktikum operasional alat-alat seperti mesin bubut, mesin frais, mesin las, serta mesin manufaktur lainnya. Siswa Permesinan kelas XI SMK Leonardo dalam pembelajaran tentang mesin manufaktur belum dibekali dengan program Kesehatan dan Keselamatan Kerja secara penuh, sehingga diperlukan kampanye terhadap siswa tersebut tentang program Kesehatan dan Keselamatan Kerja yang secara khusus diterapkan di lingkungan permesinan dan manufaktur. Kegiatan pengabdian ini bertujuan untuk memberikan pengetahuan dan wawasan tentang program keselamatan dan kesehatan kerja kepada siswa Sekolah Menengah Kejuruan (SMK) pada Siswa Permesinan kelas XI SMK Leonardo agar lebih memperhatikan tentang resiko kecelakaan kerja saat pembelajaran praktikum, selain itu juga sebagai persiapan menjadi tenaga kerja yang lebih berkompeten didunia industri manufaktur maupun industri lainnya. Hasil kegiatan ini menunjukkan kenaikan pengetahuan tentang Kesehatan dan Keselamatan Kerja secara komulatif yang mencapai kenaikan 68,57%.
Analysis of wind speed and direction as support for green buildings in urban areas using the weibull method Yudi Kurniawan; Ida Bagus Dharmawan; Wahyu Anhar; Akhmad Nurdin
Jurnal POLIMESIN Vol 21, No 2 (2023): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i2.3266

Abstract

Currently, the dominance of electricity in Indonesian providers comes from fossil energy which has the potential to increase the average temperature in various parts of the world or is called global warming. The contribution of the national renewable energy potential mix in 2016 ranging from 6.27%, then reaching 11.28% in 2020. The Government has made a long-term plan for the national renewable energy mix to reach 25% in 2025 and 31% in 2050. One of the renewable energy sources is wind energy, which is usually built on a large scale and is separated from settlements so that a long distribution network is required. Conversely, on a small scale, wind energy can be utilized with a simpler distribution network, this concept is called Small Wind Turbine. For a good wind turbine is designed according to the wind characteristics in real-time, so it is necessary to study wind mapping. This research was conducted as a prelude to observing wind characteristics in the form of mapping wind speed and direction in real-time in the northern part of Balikpapan City Region, using the Automatic Weather Station instrument which was carried out August 6 to September 26, 2022. Data processing in this study using the Weibull distribution method with Microsoft Excel. This study shows an average speed of 1.118 m/s in wind conditions with high wind variability with strong gusts, with a power density value of 1.157 Watts/m2. The wind direction tends to be east after the wind gusts are blocked by the building profile.
Co-Authors Abdul Muhyi Aisiah, Nisa Al Hassany, Ibnu Rosyid Anas Maulana Arif Syamsudin Atina, Vivin Zulfa Azam Akmal Nur Irsan Bramono Pandu Bramono Pandupradityo Catur Pramono D, Febri Budi D., Henanto Pandu Darsono, Febri Budi Dwi Aries Himawanto Dwi Aries Himawanto Dwi Aries Himawanto Dwi Aries Himawanto Eko Pujiyulianto Fahrezi, Wibi Adrian Fajar Paundra Fajar Paundra Fajar Perdana Nurrullah Febri Budi Darsono H., Rino Hamid Abdillah Hariningsih Hariningsih Hasan Bisri Hasan Bisri Bisri Hassany, Ibnu Rosyid Al ibnu rosyid al hassany al hassany Ida Ayu Putu Sri Widnyani Ida Bagus Dharmawan, Ida Bagus Indriyani Indriyani Irfan, Angga Ismail, Pitrah Rapi J. Istiyanto Joko Istiyanto K, Putra Andi Khasanah, Sabtun Ismi Laksono Trisnantoro Larasanto Larasanto Lilik Patonah Lutiyatmi Lutiyatmi, Lutiyatmi Mahmudi, Anas Yusuf Maulana Aziz Hidayanto Muhammad Munadi Muhammad Munadi Muhammad Rizky Hikmatullah Muhsin Muhsin Muhsin Muhyi, Abdul N, Fajar Perdana N, Muhammad Dwi Nugraha, Rifval Arya Nur Wahid, Nur Nurhadi . Nurhadi Nurhadi Pandupradityo, Bramono Paundra, Fajar Puguh Elmiawan Putty Yunesti Rafidan Triadji Ridwan Afandi Ridwan Afandi Rusiyanto Rusiyanto, Rusiyanto Rustam Sidiq S, Ardi Bagus S, Farid Nanda S. I. Khasanah S. N. Muhammad Sabtun Ismi Khasanah Sanusi, Arizal Ikhsan Setiawan, Faizal Shevalinzi, W. B. A. Sidik, M.farhan Sidiq, Rustam Sinta Rizky Anggraini Sri Hastuti Sudibtia Titio Koin Suparni Suparni Syamsudin, Arif Syamsul Hadi Syamsul Hadi Syamsul Hadi Hadi Tri Daryanto Tri Daryanto Tri Daryanto W.B. A. Shevalinzi Wahyu Anhar C Putra Wibowo, Rheza Ari Xander Salahudin Yudi Kurniawan Yusuf Mahmudi, Anas Zulfa Atina, Vivin