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All Journal Jurnal Simetris Prosiding Semnastek Machine : Jurnal Teknik Mesin Manutech : Jurnal Teknologi Manufaktur jurnal syntax admiration ARMATUR : Artikel Teknik Mesin dan Manufaktur Dulang: Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Inovasi Teknologi Terapan Jurnal Inovasi Teknologi Terapan
Muhammad Subhan
Politeknik Manufaktur Negeri Bangka Belitung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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UJI EKSPERIMENTAL TIPE TWIN WATERJET THRUSTER MENGGUNAKAN MATERIAL STAINLESS STEEL 304 Hasdiansah Hasdiansah; Ferzy Ersandy; Boy Rollastin; Muhammad Subhan; Faiz Maulana Akbar
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 7 No. 1 (2026): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v7i1.10172

Abstract

Maritime is a vital sector that highly depends on ship propulsion systems to support mobility and maritime security. One of the developing propulsion technologies is the waterjet thruster, which provides advantages in maneuverability, efficiency, and resistance to cavitation for high-speed vessels. This study aims to experimentally investigate the performance of a twin waterjet thruster made of stainless steel 304. The prototype was designed using SolidWorks software with a configuration of 12-blade inlet, 3-blade impeller, and 12-blade outlet, and tested using a 22 HP combustion engine at 2,300 rpm in a water test tank. The results showed thrust values of 23 kg, 24 kg, and 25 kg with an average of 24 kg or 235.44 N. The variations were influenced by water flow conditions, pump pressure, and engine stability. Overall, the twin waterjet thruster made of stainless steel 304 proved to be effective, consistent, and has the potential for further development with higher engine speeds or different drive types for real ship applications.
Analisis Kekuatan Lentur Komposit Berbasis Serat Daun Alam sebagai Alternatif Material Bilah Turbin Novia Arista Dwi Ramadina; Yuliyanto Yuliyanto; Muhammad Subhan
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 1 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i1.393

Abstract

Wind energy is one of the most promising renewable energy sources to support the transition toward sustainable energy systems, making the selection of strong and environmentally friendly wind turbine blade materials essential. This study aims to assess the potential of natural fibers as composite reinforcement, with a particular focus on flexural performance. Three types of natural fibers were compared: ijuk fiber (Arenga pinnata), pineapple leaf fiber, and corn husk fiber. Composite specimens were produced using polyester resin as the matrix with a 5% fiber volume fraction (95:5 ratio), and all fibers were pretreated through two hours of alkaline immersion. Test samples were fabricated following ASTM D790 standards with dimensions of 150 × 12.5 × 3 mm and evaluated using a Zwick Roell Z020 universal testing machine at the Materials Laboratory of Politeknik Manufaktur Negeri Bangka Belitung. The results revealed that ijuk fiber–reinforced composites achieved the highest average flexural strength of 57.3 MPa, followed by PALF at 47.5 MPa, while corn husk fiber produced the lowest value at 29.33 MPa. One-way ANOVA confirmed significant differences among the three fiber groups (p < 0.05). Overall, ijuk fiber demonstrated the greatest potential as a sustainable and high-performing reinforcement material for composite applications.
Optimasi Parameter Proses 3D Printing FDM Pada Produk Waterjet Thruster terhadap Gaya Dorong Pristiansyah Pristiansyah; Hasdiansah Hasdiansah; Thala Viniolita; Muhammad Subhan
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol. 16 No. 2 (2025): JURNAL SIMETRIS VOLUME 16 NO 2 TAHUN 2025
Publisher : Fakultas Teknik Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/simet.v16i2.15686

Abstract

Teknologi waterjet mengalami perkembangan yang signifikan dan kini semakin banyak diterapkan sebagai sistem propulsi pada kapal-kapal berkecepatan tinggi. Keunggulan utama dari sistem propulsi ini terletak pada efisiensi manuver serta konsumsi bahan bakar yang lebih ekonomis, terutama pada kondisi operasi dengan kecepatan tinggi. Prinsip kerja waterjet menghasilkan gaya dorong melalui aliran air berkecepatan tinggi yang disemburkan ke belakang, menciptakan gaya reaksi yang mendorong kapal ke depan. Penelitian ini bertujuan untuk menguji performa daya dorong dari prototipe mini waterjet thruster yang dikembangkan dengan memvariasikan sejumlah parameter teknis. Komponen utama sistem ini dicetak menggunakan teknologi 3D printing, dan rancangan percobaan disusun menggunakan metode Taguchi Orthogonal Array (OA) untuk memperoleh hasil optimal dengan efisiensi waktu dan biaya. Hasil pengujian menunjukkan bahwa konfigurasi parameter terbaik yang menghasilkan daya dorong tertinggi sebesar 2,232 N terdiri dari 15 bilah inlet turbo, tipe impeller 2, dan 13 bilah outlet turbo. Sebaliknya, daya dorong terendah sebesar 1,104 N diperoleh dari kombinasi 14 bilah inlet turbo, tipe impeller 2, dan 13 bilah outlet turbo. Berdasarkan analisis kontribusi masing-masing parameter, urutan pengaruh terbesar terhadap daya dorong adalah: tipe impeller, jumlah bilah outlet turbo, dan jumlah bilah inlet turbo.
Co-Authors Dewa Eza Adriyan Suwanto Egi Endrian Faiz Maulana Akbar Ferzy Ersandy Garaika Hasdiansah, Hasdiansah Ilham Ary Wahyudie Indah Riezky Pratiwi Juanda Juanda Muhammad Syaifullah Novia Arista Dwi Ramadina Pristiansyah, Pristiansyah Rahmat Dwi Cahyo Rodika Rollastin, Boy Said Apreza Somawardi Somawardi Sugianto Sugianto Sukatin, Sukatin Thala Viniolita Yuliyanto Zaldy Kurniawan