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All Journal International Journal of Marine Engineering Innovation and Research Journal of Management and Bussines (JOMB) Journal of Innovative and Creativity
Polaris Nasution
Universitas Riau
Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Analisa Desain dan Kalkulasi Biaya Pembangunan Kapal Perikanan 5 GT Berbahan Fiberglass untuk Perairan Riau Romadhoni Romadhoni; Budhi Santoso; Sidik Purwoko; Polaris Nasution
Journal of Management and Bussines (JOMB) Vol 5 No 2 (2023): Journal of Management and Bussines (JOMB)
Publisher : IPM2KPE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/jomb.v5i2.5874

Abstract

This study aims to design a fiberglass vessel with a capacity of 5 GT, the standard for the Indonesian BKI classification bureau, which is a reference in the capture fisheries development program in Riau province. This research method uses field survey methods and interviews with ship owners in determining the main size, software simulation in determining resistance and power values, and economic calculations and material requirements are carried out when building ships in the shipyard. The results of this study resulted in a 5 GT fishing boat design according to the Indonesian Classification Agency (BKI) FRP Fishing Boat Less than 12 M. The main dimensions of a 5 GT fishing boat are 12.5 m long, 2.6 m wide, 1.2 m high, 0 draft. .6 m, then the results of the simulation on the maxsuft resistance software obtained the results of a resistance of 4.3 kN at a speed of 12 knots so that an engine power of 48 HP was obtained. Furthermore, the estimated cost of making and fabricating fiberglass vessels in the field is IDR 445,864,800 including VAT. In conclusion, the results of the calculation of the cost component and the fabrication of a fishing vessel with a capacity of 5 GT is Rp. 445,864,800 (Four hundred Forty Five Million Eight Hundred Sixty Four Thousand Eight Hundred Rupiah) including 11% value added tax. Keywords: Fiberglass Cost, Design, Fabrication, Fishing Ship
Penguatan Pembelajaran Praktik melalui Workshop Fiberglas: Peningkatan Kompetensi Mahasiswa di Bidang Kapal Perikanan Amraini Fitri; Irwan Limbong; Polaris Nasution; Nabila Khairiyah Sitompul; Erliantina Arridhaty Akita; Isnaniah Isnaniah; Dhita Widhiastika; Riska Fatmawati; Muhammad Natsir Kholis; Muhamad Yogi Prayoga; M. Radiva
Journal of Innovative and Creativity Vol. 5 No. 3 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

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Abstract

Kegiatan Pengabdian kepada Masyarakat (PKM) ini bertujuan meningkatkan kompetensi mahasiswa dalam penyempurnaan perahu perikanan berbahan fiberglas melalui workshop berbasis praktik. Kegiatan dilaksanakan selama tiga hari, 19–21 November 2025, dengan pembagian lokasi: Ruang Atlantik untuk pembekalan materi dan diskusi, serta Laboratorium Kapal Perikanan (Boat House) untuk praktik terstruktur. Peserta berjumlah 25 mahasiswa Jurusan Pemanfaatan Sumber Daya Perairan (PSP). Metode yang digunakan mengacu pada pendekatan experiential learning melalui urutan pembelajaran konsep–praktik–umpan balik, dengan pola guided hands-on (demonstrasi, latihan, koreksi, dan pengulangan). Evaluasi dilakukan melalui pengukuran pre–post pemahaman konseptual (skala 1–5) dan observasi unjuk kerja saat praktik. Hasil menunjukkan peningkatan pemahaman mahasiswa terhadap peran fiberglas dan alur kerja penyempurnaan perahu, serta penguatan keterampilan praktik yang ditandai oleh urutan kerja lebih runtut, kerapian hasil lebih baik, dan meningkatnya kemandirian pada sesi lanjutan. Umpan balik peserta menunjukkan respons positif terhadap relevansi materi dan pendampingan instruktur, sementara aspek alat/bahan menjadi catatan perbaikan untuk pemerataan kesempatan latihan.
Assessment of Safe Loading Conditions for the SPCB Deck Crane Using Hydrostatic and GZ Curve Analysis Budhi Santoso; Romadhoni; Polaris Nasution; Hardiyanto; Zulfaidah Ariany
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 2 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.6422

Abstract

This study comprehensively assesses safe loading conditions for the Self-Propelled Crane Barge (SPCB) Deck Crane by integrating detailed hydrostatic calculations with righting-arm (GZ) curve analysis. At the designated summer draft of 2.75 m, baseline parameters—displacement (1 716 t), centre of buoyancy (KB = 0.765 m), transverse metacentre (KM = 2.780 m), and metacentric height (GM = 1.23 m)—were established from the vessel’s stability booklet. Four loading scenarios (lightship, full ballast, crane at maximum outreach, and cargo distribution) were defined, with updated displacement and vertical centre of gravity (KG) values used to recompute hydrostatic parameters (BM, KM, free-surface corrections) and generate full GZ curves. Intact-stability criteria (GM >= 0.15 m, area under GZ curve >= 0.08 m·rad, angle of vanishing stability >= 25°, and GZmax >= 0.25 m) were evaluated for each case. Results indicate that the ballast condition yields the highest stiffness (GM approximately equal to 1.50 m) and energy absorption (AUC approximately equal to 1.15 mrad). The crane-outreach scenario represents the narrowest margin (GM approximately equal to 0.90 m, AUC approximately equal to 0.60 mrad). A safe-loading envelope was developed, showing permissible crane loads of up to 100 t at 10 m outreach and limiting lifts beyond 20 m to 50 t or less. Mitigation measures—ballast management, outreach/load restrictions, optimized cargo stowage, and real-time monitoring—are recommended to ensure regulatory compliance and operational safety.
Numerical Evaluation of Post-Deck-Flooding IMO Criteria for a Low-Freeboard Harbor Tugboat Romadhoni; Budhi Santoso; Polaris Nasution
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 2 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.6438

Abstract

Low-freeboard harbour tugboats often work in quartering seas where a single boarding wave can leave water sloshing on deck and erode their transverse stability. This paper evaluates how much of that erosion a 28 m tug can tolerate before it breaks the intact-stability limits of IMO MSC 267(85). Using only the vessel’s trim-and-stability booklet, the study superimposes thin sheets of retained water—0 to 0.35 m deep, with drainage coefficients K = 0.50–0.90—on three loading states: fully laden, half-load and lightship. For every depth and K pair the corrected righting-arm curve, metacentric height and righting-area reserves are recomputed; a limiting-KG curve and a K–depth PASS/FAIL heat-map are then produced, and wave data from BMKG (2020–2024) are used to estimate the yearly probability of exceeding the IMO limits. Calculations show that in the full-departure condition the first IMO criterion fails when only 0.12 m of water is trapped at K = 0.70, whereas the threshold rises to 0.24 m at half-load and 0.31 m in lightship. Lowering K to 0.55—achievable by higher bulwarks or larger freeing ports—moves the failure boundary rightward by nearly 50 % and cuts the annual exceedance probability below 10-3.
Co-Authors Amraini Fitri Dhita Widhiastika Erliantina Arridhaty Akita Fatmawati, Riska Hardiyanto Irwan Limbong Isnaniah Isnaniah M. Radiva Muhamad Yogi Prayoga Muhammad Natsir Kholis Nabila Khairiyah Sitompul Romadhoni Santoso, Budhi Sidik Purwoko Zulfaidah Ariany