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Santoso, Budhi
Politeknik Negeri Bengkalis
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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
DESAIN SAFETY PLAN DAN JALUR EVAKUASI KAPAL PENUMPANG KM JELATIK RUTE PEKANBARU KABUPATEN KEPULAUAN MERANTI Romadhoni romadhoni; Budhi Santoso; Bobi Satria; Aprizawati Aprizawati
INOVTEK POLBENG Vol 13, No 2 (2023): VOL 13 NO 2
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ip.v13i2.3621

Abstract

Kapal Motor Jelatik merupakan kapal penumpang milik perusahaan PT. Putri Riau Sejati dengan kapsitas 205 Gross Tonage memiliki panjang 34,5 meter, lebar 6,9 m, dan tinggi 2,2 meter, dengan total crew 14 orang dan 194 orang penumpang kapal ini beroperasi daerah pelayaran terbatas yang melayani rute Selatpanjang ke Pekanbaru. Sesuai Peraturan Mentri Perbubungan No 61 tahun 2019 kapal penumpang wajib memiliki Fire Control and Safety Plan. Adapun cakupan pembahasan dalam Fire Control and Safety Plan, yaitu perencanaan  jumlah  dan  peletakan  Life-Saving  Appliances  (LSA),  membuat  perencanaan  sistem  proteksi  dan pemadaman kebakaran, serta perencanaan rute evakuasi yang efektif dan cepat ketika keadaan darurat. Langkah-langkah yang dilakukan  dalam penelitian ini adalah merancang  Fire  Control  and  Safety  Plan,  yaitu  merancang  kebutuhan  LSA,  merancang sistem proteksi kebakaran, serta menentukan rute evakuasi dan menghitung kebutuhan waktu evakuasi mengacu pada regulasi SOLAS,  LSA  Code, FSS  Code, IMO, NCVS Indonesia, dan BKI. Hasil penelitian menyebutkan bahwa Kapal Jelatik wajib menyediakan 26 rigid life craft, 234 unit lifejacket dan 24 lifejacket anak-anak, 6 unit lifebuoy, 6 unit hand flares, 2 unit line towing appliance, 4 unit smoke signal, 8 unit parachute flares, 8 unit APAR, 9 unit Detektor, 1 unit co2 Bottle 2 unit sprinkler di kamar mesin, 2 unit pilar, hydrant dan 7 unit space monitored by smoke. Waktu evakuasi yang dibutuhkan dalam keadaan darutat untuk mengevakuasi seluruh penumpang dan crew kapal case 1 adalah selama 47,95 detik dan case 2 adalah 41,7 detik.
Studi Penambahan fly ash pada Komposit Natural Fiber Reinforced Boat Widya Emilia Primaningtyas; Benedicta Dian Alfanda; Kiki Dwi Wulandari; Budhi Santoso
INOVTEK POLBENG Vol 12, No 2 (2022): INOVTEK Vol 12, No 2
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ip.v12i2.2886

Abstract

Kapal berpenguat serat kaca masih menjadi mayoritas produksi industri transportasi laut, akibat harga yang relatif murah dan proses produksi yang mudah. Resiko kesehatan kerja yang tinggi saat produksi, dihasilkan dari penggunaan serat kaca yang ringan, tipis, dan tajam mudah terhirup. Maka kebutuhan kapal yang kuat, murah, dengan resiko kesehatan kerja rendah serta ramah lingkungan menjadi tantangan bagi sektor material di industri transportasi laut. Daun nanas, merupakan salah satu limbah komoditas perkebunan Indonesia, yang jumlahnya melimpah dan pemanfaatannya yang belum optimal, berpotensi menggantikan serat kaca pada konstruksi Natural Fiber Reinforce Boat. fly ash, merupakan residu hasil pembakaran batubara,tercatat pemanfaatannya hanya berada maksimum pada 12% dari total pasokan. Penelitian ini bertujuan untuk menganalisis sintesis pembentukan komposit polyester berpenguat serat daun nanas yang ditambahkan fly ash sebagai filler. Kekuatan tarik dari spesimen komposit diuji mengacu pada ASTM D638-14. Pembuatan komposit dilakukan dengan metode hand lay-up dengan komposisi reinforce dan matriks dalam persen volume sebesar  30:70% dengan variasi penambahan fly ash sebesar 0, 5, 10, 15 % dari tiap-tiap porsi komposisi matriks. Serat daun nanas pendek berukuran 1 mm digunakan dan disusun dengan orientasi random sebagai reinforce. Nilai kekuatan tarik terbaik dihasilkan dari komposit tanpa penambahan filler fly ash senilai 45,060,87 MPa, yang melampaui kekuatan minimum sebagai papan serat densitas tinggi mengacu pada SNI 01-4449-2006 yang dapat digunakan sebagai bahan dinding ruang sekat akomodasi interior kapal. Penambahan sejumlah sedikit fly ash (5%) sebagai filler dalam komposit menurunkan 6,41% kekuatan tarik, namun seiring dengan meningkatnya jumlah filler fly ash yang ditambahkan cenderung meningkatkan kekuatan tarik walaupun belum melampaui kekuatan tarik komposit tanpa tambahan filler fly ash.
Assessment of Safe Loading Conditions for the SPCB Deck Crane Using Hydrostatic and GZ Curve Analysis Santoso, Budhi; Romadhoni, Romadhoni -; Nasution, Polaris; Hardiyanto, Hardiyanto; Ariany, Zulfaidah
International Journal of Marine Engineering Innovation and Research Vol 10, No 2 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.22862

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 ≈ 1.50 m) and energy absorption (AUC ≈ 1.15 m·rad). The crane-outreach scenario represents the narrowest margin (GM ≈ 0.90 m, AUC ≈ 0.60 m·rad). 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, Romadhoni; Santoso, Budhi; Nasution, Polaris
International Journal of Marine Engineering Innovation and Research Vol 10, No 2 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.22909

Abstract

Abstract¾ 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 κ = 0.50–0.90—on three loading states: fully laden, half-load and lightship. For every depth and κ pair the corrected righting-arm curve, metacentric height and righting-area reserves are recomputed; a limiting-KG curve and a κ–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 κ = 0.70, whereas the threshold rises to 0.24 m at half-load and 0.31 m in lightship. Lowering κ 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 Alfanda, Benedicta Dian Aprizawati Aprizawati Ariany, Zulfaidah Bobi Satria Hardiyanto, Hardiyanto Jamal Jamal Kiki Dwi Wulandari M Ikhsan M Ikhsan Muhammad Helmi Nasution, Polaris Pardi Pardi Polaris Nasution Primaningtyas, Widya Emilia Romadhoni Romadhoni Romadhoni, Romadhoni Sarwoko Sarwoko Sarwoko Sarwoko Sidik Purwoko Supriyadi Supriyadi