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All Journal INOVTEK POLBENG Sewagati
Alif Nur Rochmad
Politeknik Perkapalan Negeri Surabaya
Arts Humanities Computer Science & IT Education Engineering Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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Analisa Hambatan, Stabilitas, dan Seakeeping Kapal Patroli Lepas Pantai Alif Nur Rochmad; I Putu Shindu Asmara; Sumardiono Sumardiono; Benedicta Dian Alfanda
INOVTEK POLBENG Vol 12, No 1 (2022): INOVTEK VOL.12 NO.1 2022
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ip.v12i1.2313

Abstract

Offshore Patrol Vessel (OPV)  are the result of technological development to defend the sea area. Fins Undership are fins-shaped devices located at the bottom of the ship's hull. The use of anti-roll systems (fins) on the ship is able to influence the rolling motion response on the ship. It is expected that when shooting conditions or avoid enemy attacks remain in a stable condition and in good performance. The addition of fin variations at the bottom of the ship's hull is a method used to change the resistance value and rolling moment arising from the ship's hull which is immersed in water. Calculation of ship resistance and rolling moment can be done through the Computational Fluid Dynamics (CFD) simulation method with the type of ship to be used is Offshore Patrol Vessel (OPV). Types of fins angle variation used are angles of 30°, 35°, 40° and 50°. So that it can be compared the resistance value and rolling moment with and without fins undership. The results of the study with the addition of Undership Fins on the underside of the hull influence the resistance and rolling moment of the ship. The results of simulation fins with NAIAD 525 type at a service speed of 22.4 knots, the angle of 30° has the lowest resistance value compared to other angles with a value at Maxsurf 945.3 kN and with Ansys CFD 933.708 kN. But the value of the engine power at an angle of 50° fins has the smallest value of 10.892,367 kW. As for the rolling moment value, the angle of 50° has the smallest rolling moment value with a value of 4.191.226.25 N.m at a frequency of 0.4 rad/s.
Model Kolaborasi Pendidikan Dan Industri Dalam Pelatihan Welding Inspector Di Politeknik Perkapalan Negeri Surabaya: Strategi Peningkatan Kompetensi Sumber Daya Manusia Muhammad Fiky Izzulhaq; Lilik Khoiriyah; Muhammad Ali Reza; Chezta Ahmad Muzakky; Alif Nur Rochmad; Intan Rahmahwati; Vena Rizky Pusparani; M Rizqi Mubarok
Sewagati Vol 10 No 4 (2026)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v10i4.9688

Abstract

The Politeknik Perkapalan Negeri Surabaya (PPNS), through its Welding Engineering Study Program, organized a Welding Inspector Training program certified by the Badan Nasional Sertifikasi Profesi (BNSP). This initiative represents a strategic effort to enhance the quality of human resources in the maritime industry through a vocational education–industry link and match model. The program is open to students, alumni, and industry professionals to meet the growing demand for nationally and globally certified personnel. The training was conducted collaboratively by PPNS and the Professional Certification Institute (LSP) PPNS, employing a Competency-Based Training (CBT) approach that integrates intensive theoretical instruction, laboratory practice, industry mentoring, and a final competency assessment. With a total duration of 328 hours, participants were trained in visual inspection, non-destructive testing (NDT), and welding metallurgy analysis. The results indicate a 100% pass rate, underscoring the effectiveness of this collaborative model in meeting BNSP certification standards. Furthermore, the program strengthens the tripartite relationship among educational institutions, industry, and certification bodies, while also serving as a best practice for implementing TVET 4.0 and the Link and Match 8+i Framework in vocational education in Indonesia.
Co-Authors Alfanda, Benedicta Dian Chezta Ahmad Muzakky I Putu Shindu Asmara Intan Rahmahwati Lilik Khoiriyah M Rizqi Mubarok Muhammad Ali Reza Muhammad Fiky Izzulhaq Sumardiono Sumardiono Vena Rizky Pusparani