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Rancang Bangun Multi Archimedes Screw Turbine Parallel Muhammad Fahsyah Alfathir; Muhammad Subhan; Hasdiansah
Jurnal Teknik Mesin Vol. 19 No. 1 (2026): Jurnal Teknik Mesin (In Press)
Publisher : Politeknik Negeri Padang

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Abstract

As an environmentally friendly application of renewable energy, pico-hydro power plants are a prime option, especially for remote areas with sufficient water flow. However, the effectiveness of pico-hydro power remains a matter of debate, particularly regarding the angle and rpm required to generate sufficient electrical power. The method is carried out by designing and building a multi-Archimedes screw turbine prototype that applies a transmission system to improve the performance of the turbine rotation in parallel. The test results show that the 45-degree turbine tilt angle configuration produces a turbine rotation of 97 rpm, which indicates optimal efficiency in utili
Hand Training Bagi Penderita Stroke Menggunakan 3D Printing Hasdiansah; Yogi ilyasyah; Zaldy S. Suzen
Jurnal Teknik Mesin Vol. 19 No. 1 (2026): Jurnal Teknik Mesin (In Press)
Publisher : Politeknik Negeri Padang

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Abstract

Stroke is one of the leading causes of disability in Indonesia, often affecting motor functions, particularly in thehands. Rehabilitation plays a crucial role in restoring these functions. This study aims to design and develop a hand training device for stroke patients using 3D printing technology and a soft pneumatic actuator system. The process began with CAD-based design, followed by fabrication using Fused Deposition Modeling (FDM) 3D printing with TPU material, and final assembly of all components. Testing results showed that the device could effectively perform finger flexion movements at air pressures ranging from 0.49 MPa, and was capable of gripping objects such as a spiked ball. This device offers an affordable, customizable, and flexible rehabilitation solution to assist stroke patients in regaining hand motor function.
Experimental evaluation of static thrust performance of an FDM-printed TPU 95A waterjet thruster Hasdiansah Hasdiansah; Herianto Herianto; Masdani Masdani; Ramli Ramli; Dafi Bazilah; Muhammad Haritsah Amrullah; Zaldy Sirwansyah Suzen; Muhamad Riva'i; Idiar Idiar; Muhammad Subhan
Jurnal Polimesin Vol 24, No 4 (2026): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i4.9048

Abstract

Waterjet propulsion systems manufactured by Additive Manufacturing (AM) offer potential advantages for lightweight marine applications, but experimental data on the static thrust performance of polymer-based waterjet thrusters remain limited. This study presents an experimental investigation of the static thrust performance of a waterjet thruster fabricated from Thermoplastic Polyurethane (TPU 95A) using Fused Filament Fabrication (FFF). Static thrust was measured at rotational speeds of 1500, 3000, 4500, 6000, 7500, and 9000 rpm using a 13 hp internal combustion engine. The results showed a consistent increase in static thrust with rotational speed, from 20 N at 1500 rpm to a maximum of 170 N at 9000 rpm. However, the increase in thrust became less proportional at higher rotational speeds, indicating increasing hydraulic and mechanical losses. These losses may be associated with flow separation, turbulence, tip leakage, and elastic deformation of the TPU impeller under hydrodynamic and centrifugal loading. Despite this behavior, there is not any abrupt thrust fluctuations were observed throughout the tested operating range, indicating stable static thrust generation. The maximum thrust of 170 N demonstrates the capability of the FDM-printed TPU 95A thruster to generate measurable propulsion force under static conditions. The results provide experimental reference data for the development and optimization of additively manufactured waterjet thrusters for small-scale marine propulsion applications.
PENERAPAN METODE 5 WHYS DALAM MENGIDENTIFIKASI PENYEBAB GANGGUAN SISTEM KELISTRIKAN PADA MESIN FRAIS ACIERA F3 Aditia Akbar Rianto; Aan Aji Saputra; Fajar Aswin; Hasdiansah Hasdiansah
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 6 No. 1 (2026): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

The Aciera F3 milling machine is a vital tool in practical and production activities at the Mechanical Engineering Laboratory of the Bangka Belitung State Manufacturing Polytechnic. Damage to the electrical system resulted in the machine being unusable, which hampered the learning process. This study aims to identify the source of the damage and determine the appropriate repair method. The strategy implemented is Root Cause Analysis (RCA) with the 5 Whys method. Data were collected from interviews with technicians, literature studies, maintenance and repair records, and manuals. The research findings indicate damage to the vulnerable auxiliary contactor and broken terminals, resulting in a power outage to the control panel. The 5 Whys analysis indicates that the old component life and lack of regular replacement are suspected to be the main causes of the auxiliary contactor damage.
Co-Authors Aan Aji Saputra Achmad Rusdy Ade Ferdiansyah Adhe Anggry Aditia Akbar Rianto Afriadi, Achmad Ahadiatullah, Wassi Ahmad Gunadi, Ahmad Aldi Pratama Alfian Aprilia, Silvy Ariansyah , Ariansyah Ariyanto Arriyani, Yang Fitri Aswin , Fajar Aswin, Fajar Atikah Araminta Wardiyah Berlian Adinata Intani Adinata Boi Rollastin Boy Rollastin Clara Lavita Angelina Dafi Bazilah Dafri, Nastiar Dedy Ramdhani Harahap Delfiana Octora Devaned Parlindungan Dherry Riski Andhika Diviya Arsieka Putri Dwi Ranti Safitri Erwansyah, Erwansyah Fadzila Septia Faiz Maulana Akbar Fajar Aswin Falah Yudha Hanafi Febrianto, Muhammad Yori Feriadi, Indra Ferzy Ersandy Ferzy Ersandy Fikri Fikri Firnando, Aldo Hafiz Fadhil Hairullah Hairullah Harwadi, Harwadi Herianto , Herianto Herianto . Herianto Herianto Husman Husman Idiar Ilham Nur Dimas Yahya Indun Inne Dwi Agustini Irfan Fadhil, Irfan Irwandi, Muhammad Josi, Ahmad M. Ahlan Maulidiansyah Marcellino Stevanus Seva Mario Oktavianto Masdani, Masdani Maulidiansyah, M. Ahlan Medeline Citra Vanessa Meriatun Meriatun Muhamad Aris Muhamad Riva'i Muhammad Ahlan Maulidiansyah Muhammad Fahsyah Alfathir Muhammad Haritsah Amrullah Muhammad Subhan Muhammad Subhan Muhammad Subhan MUHAMMAD SUBHAN Nanda Pranandita Naufal Rafiq Muhammad Nori Farandi Nori Oktavianto, Mario Oktriadi, Yudi Pranata, Yogi Pratama, Wahyudi Hafizi Pristiansyah , Pristiansyah Pristiansyah, Pristiansyah Rafiq Muhammad, Naufal Rahman Saputra, Rahman Ramdhani, Dedy Ramli Ramli Ramli Ramli Redy, Redy Reza Dwi Putra Putra Riskullah Dirga Trisaplin Rizqi ilmal yaqin, Rizqi ilmal Robert Napitupulu Rohman, Habibu Rollastin, Boy Sateria, Angga Setyawan, Riko Seva, Marcell Seva, Marcellino Stevanus Soni Afriansyah Stevanus Seva, Marcellino Subakti, Yulian Subkhan Subkhan Sugianto Sugianto Sugianto Sugianto Sugiyarto Sugiyarto Sugiyarto Sugiyarto Sugiyarto Sugiyarto Sukanto , Sukanto Suzen, Zaldy S Suzen, Zaldy Sirwansyah Syaputra Arianto, Handika Tarman, Tarman Thala Viniolita Thala Viniolita Ummi Khalsum Verdy Banarma Viniolita , Thala Viniolita Viniolita, Thala Wahyudi Hafizi Pratama Wahyudi Wahyudi Wassi Ahadiatullah Wibowo, Kasih Yogi ilyasyah Yogi Ilyasyah Yogie Pranata Yudha Bika Pratama Yuli Dharta Yulian Subakti M.yusuf Yuliyanto Yuliyanto Yuliyanto Z. S. Suzen Zaldy Kurniawan Zaldy S Suzen Zaldy S. Suzen Zaldy S. Suzen Zanu Saputra Zarkasih Zarkasih Zulfiandi, Wendi Zulfitriyanto, Zulfitriyanto