Hydrodynamic and Structural Investigations of Catamaran Design

Julianto, Rizki Ispramudita; Muttaqie, Teguh; Adiputra, Ristiyanto; Hadi, Syamsul; Hidajat, R. Lullus Lambang G.; Prabowo, Aditya Rio

doi:10.1016/j.prostr.2020.07.013

Cited by 11 publications

(7 citation statements)

References 19 publications

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“…The resistance calculation method used in this study is the Savitsky method. In the research of Prabowo et al, the comparison between numerical simulations and mathematical calculations using the Savitsky method shows that the difference in error is below 10% [19,22]. The ship model selects the resistance test with low resistance and low power.…”

Section: Ship Resistancementioning

confidence: 99%

Fast ship prototype design simulation with fin stabilizer on hydrodynamic characteristics for ship realization planning

Diatmaja

Prabowo

Muhayat

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This study aims to determine the effect of adding variations of fin stabilizers on the hydrodynamic characteristics of the ship design. It compares the hull without modification with the hull modified by a fin stabilizer on a prototype scale. The results of this study is assessed to obtain the best performance of ships with various models to be used in the design of ship realization. The research method is conducted by numerical approach, including simulation of resistance, stability, and seakeeping. The hull design references chosen are the Fast Police Boat and SMIT Patrol Boat with a Length Overall value of 1 m. The fin stabilizer uses hydrofoil type NACA-0015 with an aspect ratio of 0.7. Then the length variations are 3 cm, 4 cm, and 5 cm, with angle variations being 25°, 30°, and 35°. The results showed that adding a fin stabilizer could increase the ship’s stability. The best fin stabilizers variations are fins with a length of 5 cm and an angle of 30° for the prototype design of the Fast Police Boat hull and fins with a length of 5 cm and an angle of 35° for the prototype design of the SMIT Patrol Boat hull.

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Section: Ship Resistancementioning

confidence: 99%

Fast ship prototype design simulation with fin stabilizer on hydrodynamic characteristics for ship realization planning

Diatmaja

Prabowo

Muhayat

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Stability testing is the ship's ability to be upright again after experiencing a certain roll/tilt [15][16][17]. In general, stability is divided into static stability (Equation 2) and dynamic stability (Equation 3).…”

Section: Ship Stability Assessmentmentioning

confidence: 99%

Effect of bilge keel variations on the designed fast patrol boats to hull resistance and stability behaviours

Rahmaji

Prabowo

Muhayat

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This study aims to analyse the effect of variations in the addition of bilge keel on the value of resistance, ship stability, and seakeeping performances. The research method is carried out by designing and analysing the hull design of the fast patrol boat type with variations in the addition of a bilge keel. Variations made on the bilge keel include length and width. The length variations are considered by applying 4 m, 5 m, and 6 m, while the variations in width include 0.3 m, 0.4 m, and 0.5 m. This study indicates that the nine variations of the bilge keels model with a combination of length and width do not show a significant difference in the resistance value on each ship. Then, for the stability criteria, the bilge keel model IX, with a length of 6 m and a width of 0.5 m, has the best stability value compared to other variations. Meanwhile, the addition of bilge keel in the seakeeping simulation did not show a significant difference. The parameters of this analysis consider the primary needs of fast patrol boats to support the development of shipping technology.

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“…Research on criteria on ships has been carried out using several methods. Table 3 shows that each criterion will affect the ship's performance when sailing from internal and external factors [52][53][54][55][56][57]. Research with several criteria at once, such as resistance, stability, seakeeping, Motion Sickness Incidence, Deck wetness, and Floodable length, is still little done.…”

Section: State Of Artmentioning

confidence: 99%

Fast patrol boat hull design concepts on hydrodynamic performances and survivability evaluation

Pratama¹,

Prabowo²,

Tuswan³

et al. 2023

J Appl Eng Science

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A fast patrol boat is one of the ships intended to defend a region and rescue and search in the accident event so that the ship must have a high level of security and survivability performances. This study uses 9 design variations with various main dimensions and hull lengths to determine the effect of the different main dimensions on the hydrodynamic performances. Each criterion was affected to obtain results in hull design, durability, stability, seakeeping, floodable length, and motion sickness incidence (MSI). Simulations are carried out to determine the resistance, stability, ship response when exposed to external forces, passenger comfort, and ship safety level when a leak occurs. Resistance simulation uses a Froude number between 0 to 2.217. Stability simulation analyzes max GZ and angle of maximum GZ on seakeeping, deck wetness, and MSI simulations using 90°, 135°, and 180° wave incidence angles. The addition of bulkheads is carried out to determine the ship's response when it experiences a leak and prevents the ship's sinking when puddles enter the ship with five bulkheads per hull and three variations in distance. Design and simulation of various criteria using Maxsurf software. In the floodable length simulation, the hull added a bulkhead to determine the effect of leakage from several hull designs and watertight bulkhead spacing variations. Design 7 has the best average result compared to other designs from the simulation recapitulation results. It has a small resistance value, a large stability angle, a stable ship response when subjected to external forces, seasickness levels, and a small deck language. From the floodable length graph, it has a high flood limit that makes the ship survive and be safer than other designs. Design 7 refers to the ship Grandweld Shipyard Delivers 21M Discovery Class Vessel Fujairah Pilot.

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Hydrodynamic and Structural Investigations of Catamaran Design

Cited by 11 publications

References 19 publications

Fast ship prototype design simulation with fin stabilizer on hydrodynamic characteristics for ship realization planning

Fast ship prototype design simulation with fin stabilizer on hydrodynamic characteristics for ship realization planning

Effect of bilge keel variations on the designed fast patrol boats to hull resistance and stability behaviours

Fast patrol boat hull design concepts on hydrodynamic performances and survivability evaluation

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