Hull Form Characteristics of Traditionally Fishing Vessel < 5 GT  at Karangantu Archipelago Fishing Port

The University of British Columbia (UBC) and the British Columbia Research Incorporated (BCRI) collaborated to design a fishing vessel suitable for use on the west coast of Canada. This vessel, called the UBC Series parent hull form, was designed to have a large aft deck area and a volumetric coefficient comparable to those of modern Canadian fishing vessels. The resistance characteristics of this hull were improved without compromising on functionality and usable space. A resistance algorithm developed from the results for a systematic series of low-L/B displacement-type vessels, the UBC Series, was previously published (Calisal&McGreer, 1993). However, during the design process, the seakeeping performance of the vessel was never addressed. This paper describes the seakeeping performance of the UBC series in head seas. An algorithm, developed from the results of the model tests, can be used to calculate the seakeeping response of similar low L/B vessels. To calibrate the seakeeping measurement procedure, tank instrumentation, and data collection system, the ITTC Standard Seakeeping hull form (the S-175 hull form) was tested and the results were compared against published results for this hull form. The same techniques used for the standard hull form were then used to measure the seakeeping performance of the UBC Series. Possible application of the algorithm for non-UBC Series forms is also discussed.

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Hull form design optimization of twin-skeg fishing vessel for minimum resistance based on surrogate model

Advances in Engineering Software ◽

10.1016/j.advengsoft.2018.05.010 ◽

2018 ◽

Vol 123 ◽

pp. 38-50 ◽

Cited By ~ 7

Author(s):

Yan Lin ◽

Jingyi He ◽

Kai Li

Keyword(s):

Design Optimization ◽

Surrogate Model ◽

Fishing Vessel ◽

Hull Form ◽

Form Design ◽

Hull Form Design ◽

Minimum Resistance

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Estimation of Maneuverability of Trawl Fishing Vessel Using an Analytical Method

Journal of Marine Science and Engineering ◽

10.3390/jmse9080854 ◽

2021 ◽

Vol 9 (8) ◽

pp. 854

Author(s):

Su-Hyung Kim ◽

Chun-Ki Lee

Keyword(s):

Regression Analysis ◽

Empirical Formula ◽

Estimation Error ◽

Design Stage ◽

Test Results ◽

Fishing Vessel ◽

Empirical Formulas ◽

Hull Form ◽

Fishing Vessels ◽

Trawl Fishing

Most fishing vessels are less than 100 m in length between the perpendiculars, for which adherence to the International Maritime Organization maneuverability standards are not mandatory. In the design stage of fishing vessels, maneuverability is estimated using empirical formulas—mainly analytical methods—rather than costly and time-consuming model tests. However, the empirical formula is developed through the process of regression analysis on the model test results from merchant ships’ hull form and applying the same to the fishing vessels’ hull form may result in an estimation error due to the differences in the vessels’ characteristics—e.g., L/B, B/d and Cb·B/L—. In a previous study, the authors of this paper derived a modified empirical formula by adding the hull form parameters of trawl fishing vessels to the existing empirical formula based on those of merchant ships. This study analyzes the validity of the modified empirical formula in depth by applying it to a newly-built training vessel that has the hull form of a trawl fishing vessel. As a result of the study, the estimation results were improved by including the parameters of the hull form of trawl fishing vessels in the empirical formula developed for merchant ships.

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An Optimization Study on the Hull Form and Stern Appendage for Improving Resistance Performance of a Coastal Fishing Vessel

Applied Sciences ◽

10.3390/app11136124 ◽

2021 ◽

Vol 11 (13) ◽

pp. 6124

Author(s):

Jin-Won Yu ◽

Min-Kyung Lee ◽

Yang-Ik Kim ◽

Sung-Bu Suh ◽

Inwon Lee

Keyword(s):

Fuel Efficiency ◽

Variation Method ◽

Design Parameters ◽

Fishing Vessel ◽

Hull Form ◽

Fishing Vessels ◽

Optimization Study ◽

Principal Dimension ◽

The Republic ◽

Hull Forms

In response to the increasing number of free trade agreements (FTA) and the Trans-Pacific Partnership (TTP), it is necessary to develop next-generation fishing vessels for the littoral sea of the Republic of Korea. The main objectives of such fishing vessels are to enhance the comfort of the crew and to improve fuel efficiency under the newly established principal dimension. This paper employs the hull form variation method to obtain a series of forebody hull forms of the 19 gross tonnage class of a coastal composite fishing vessel. Chine breadth modification has been used for hull form variations. The objective function is the minimum value of wavemaking resistance. A parametric study was conducted to observe the effects of design parameters on the objective functions, and hull-form optimization was performed. In addition to the hull-form optimization, the effect of the stern flap was investigated in terms of both resistance and operational performances.

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A Resistance Study on a Systematic Series of Low L/B Vessels

Marine Technology and SNAME News ◽

10.5957/mt1.1993.30.4.286 ◽

1993 ◽

Vol 30 (04) ◽

pp. 286-296

Author(s):

Sander M. Calisal ◽

Dan McGreer

Keyword(s):

West Coast ◽

Resistance Test ◽

Series Data ◽

Test Results ◽

Fishing Vessel ◽

Hull Form ◽

Small Vessels ◽

Design Speed

Model resistance test results for a systematic series of low L/B, displacement-type vessels are presented. The UBC Series is based on West Coast seiners and trawlers. These vessels have low L/B and L/V⅓ values that are outside the range of existing model series data. A parent hull form was developed that has 14 percent less resistance and yet has the same displacement and deck area of a typical fishing vessel. A series of 13 models was generated by systematically varying L/B, B/T and Cb. Algorithms are presented for calculation of the resistance of similar small vessels for two loading drafts. Results of side bulb applications reduced the resistance of the parent hull at design speed by an additional 16.6 percent. The parent hull form is designed as a developable hull form.

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Resistance and Hull Form Optimization for Vietnamese Fishing Vessel

Journal of Advanced Research in Dynamical and Control Systems ◽

10.5373/jardcs/v12sp3/20201310 ◽

2020 ◽

Vol 12 (SP3) ◽

pp. 720-732

Author(s):

Huỳnh Văn Chính

Keyword(s):

Fishing Vessel ◽

Hull Form

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On the High-Performance Hydrodynamics Design of a Trimaran Fishing Vessel

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences ◽

10.37934/arfmts.83.1.1733 ◽

2021 ◽

Vol 83 (1) ◽

pp. 17-33

Author(s):

Kurniawan Teguh Waskito ◽

Yanuar

Keyword(s):

High Performance ◽

Fishing Vessel ◽

Hull Form ◽

Fishing Vessels ◽

Strip Theory ◽

Significant Difference ◽

Multihull Ship ◽

Ship Speed ◽

Motion Amplitude ◽

Rough Sea

Trimaran hull form as multihull ship becomes more attractive these days in various ship types. It offers more advantages in terms of seakeeping performances, particularly on the application of a fishing vessel. However, thus far, the conventional design of fishing vessels is not favorable to ensure the safety of a vessel sailing in a rough sea. In conjunction with such issues, we discuss a trimaran fishing vessel design based on the seakeeping criterion to evaluate the dynamic stability, ship motion RAOs, and ship resistances at the initial design stages using linear strip theory. The intact stabilities are calculated to complement the seakeeping results. The analytical method based on the slender body method is used to evaluate the steady wave resistances. The results of heave, pitch, roll motions, and the ship resistances are discussed. At the zero speed and forward speed, the trimaran shows a favorable motion amplitude, although in forward speeds at the case of head seas there is no significant difference. The trimaran presents a favorable steady-resistance up to the ship speed of Fn=0.27, and it becomes deteriorating than the monohull at higher ship speeds. However, the added wave resistances of the wavelength range 1.0 – 3.0 shows significant added resistances at Fn=0.25 and Fn=0.35, respectively. The results of this study present promising seakeeping and resistance characteristics of the trimaran hull form. The trimaran hull form ensures the safety, reliability, and operation efficiency of ships sailing in broader ranges of violent-sea environment.

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