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

Rahmaji, T; Prabowo, Aditya Rio; Muhayat, Nurul; Tuswan, Tuswan; Putranto, Teguh Dwi

doi:10.1088/1755-1315/1166/1/012048

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…The selected reference ship uses a patrol boat type. The main size of the ship must be determined before 3D modeling of the hull is carried out [52][53][54][55]. According to the patrol boat, the selected reference vessel is the type of hull that uses a vhull.…”

Section: Reference Shipmentioning

confidence: 99%

Comparative Evaluation of Design Variations in Prototype Fast Boats: A Hydrodynamic Characteristic-Based Approach

Diatmaja,

Prabowo,

Adiputra

et al. 2023

MMEP

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As one of the world's largest archipelagic nations, Indonesia is tasked with the crucial responsibility of supervising and protecting its territorial waters from threats such as illegal fishing and damage to coral reefs. The effective and efficient execution of this task relies heavily on the use of fast patrol boats. Consequently, the need to investigate the hydrodynamic characteristics of these boats' hulls is paramount. This study is primarily focused on the analysis and design of fast patrol boat hull prototypes. Our objective is to ascertain a practical design methodology that yields the optimal shape and size of the boat's hull. The adopted research methodology involved the design and analysis of eleven hull prototypes, evaluated based on resistance, stability, and seakeeping criteria. Five models were adapted from the reference ship, with a deadweight tonnage (DWT) variation of 2-3.5 tons. Three models employed the regression method with a block coefficient (CB) variation of 0.45-0.46, while the remaining three models utilized the scaling method, derived from the reference ship with the lowest resistance. The models in both the regression and scaling methods applied the primary size derived from the linear regression results of the five reference vessels. From the analysis, it was found that models developed using the regression method demonstrated superior hydrodynamic characteristics, denoted by consistently higher total values. This research provides valuable insights for the development of efficient fast patrol boats, which is crucial for the effective management of Indonesia's expansive maritime territory.

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Section: Reference Shipmentioning

confidence: 99%

Comparative Evaluation of Design Variations in Prototype Fast Boats: A Hydrodynamic Characteristic-Based Approach

Diatmaja,

Prabowo,

Adiputra

et al. 2023

MMEP

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Investigation of environmental factors on the resistance characteristic: Study case of the designed patrol boat hull

Yusfianda,

Prabowo,

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The increase in world oil prices has led to high operational costs in the maritime sector. In this regard, it is necessary to increase efficiency in the use of fuel in the maritime transportation security sector. Resistance on the ship’s hull affects efficiency and fuel consumption. In previous studies, there have been analyses on internal factors of the ship’s hull, such as appendages, which can affect the resistance value of the ship’s hull. However, examination of the external factors, e.g., the condition of the waters during operations of patrol boats, is still scant. This study conducts a series of analyses of the influence of environmental factors on the hull resistance values, such as water density and wind speed, with five different conditions. The results of this study are expected to be a reliable reference in predicting hull performance under different environments, especially in an attempt to reduce fuel consumption due to resistance.

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Analysis of the internal-design factor to the patrol boat: A study of hull resistance using Savitsky and Holtrop approaches

Lutfi,

Prabowo,

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The issue with sea transportation is the high operational costs due to fuel consumption. Ship resistance generated by the shape of the ship hull is one factor that affects efficiency. Internal factors that affect the hull’s resistance include the frontal area, appendage area, and appendage factor. In previous studies, research has been conducted on the effect of adding appendages to the hull and hull design variations on resistance. However, research on the influence of internal factors, e.g., rudder surface area and frontal area of the bow on hull resistance of monohull-type ships still need to be done. In this study, the effect of the type of internal factor is to be by considering the calculation of the hull resistance using the Savitsky method and Holtrop formula. Several hull designs with variations on adding the applied appendages are proposed to be the subjects of this study. The effect of the internal factors on the hull performance, i.e., resistance, is quantified to conclude the parameter which provides the highest effect.

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

Cited by 3 publications

References 14 publications

Comparative Evaluation of Design Variations in Prototype Fast Boats: A Hydrodynamic Characteristic-Based Approach

Comparative Evaluation of Design Variations in Prototype Fast Boats: A Hydrodynamic Characteristic-Based Approach

Investigation of environmental factors on the resistance characteristic: Study case of the designed patrol boat hull

Analysis of the internal-design factor to the patrol boat: A study of hull resistance using Savitsky and Holtrop approaches

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