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Hull form optimisation to minimise the total resistance and dynamic responses of small fishing vessels

Hull form optimisation to minimise the total resistance and dynamic responses of small fishing vessels
Hull form optimisation to minimise the total resistance and dynamic responses of small fishing vessels
This paper presents a novel approach to ship hull form optimisation, aimed at minimising total resistance while simultaneously enhancing the seakeeping performance of a fishing vessel. When conducting optimisation process in minimising resistance, the method employs the minimisation of the y-axis radius of gyration (Ry)by optimising the longitudinal centre of gravity (LCG) and vertical centre of gravity(KG). The influence of altering LCG and KG on Ry, total resistance, and seakeeping is explored. Reducing Ry enhances sea keeping performance, lower added resistance,resulting in a reduced mean total resistance in waves. This finding demonstrates that itis possible to reduce resistance and improve seakeeping performance simultaneously without the need for multi-objective optimisation to balance the two. By employing the method outlined in this paper, seakeeping performance can be enhanced alongside resistance optimisation in a single process. The optimal hull form can reduce root mean square (RMS) vertical acceleration, RMS pitch motion, and added resistance on average by 1.79%, 1.51%, and 6.48%, respectively. In addition, the mean total resistance in waves for the optimised hull form was reduced by up to 4.15% compared to the initial hull form. This method offers a streamlined solution to achieving multiple performance objectives concurrently.
Fishing boat, CFD, seakeeping, response surface methodology
0029-8018
Iqbal, Muhammad
9d3db7d0-2cf5-4c8b-b264-130a80c067bd
Terziev, Momchil
938f71d0-02b5-414c-8c2d-9cca8cc87397
Tezdogan, Tahsin
7e7328e2-4185-4052-8e9a-53fd81c98909
Incecik, Atilla
25a12ee2-7ba6-47cf-af5d-a79de4c6a2c4
Iqbal, Muhammad
9d3db7d0-2cf5-4c8b-b264-130a80c067bd
Terziev, Momchil
938f71d0-02b5-414c-8c2d-9cca8cc87397
Tezdogan, Tahsin
7e7328e2-4185-4052-8e9a-53fd81c98909
Incecik, Atilla
25a12ee2-7ba6-47cf-af5d-a79de4c6a2c4

Iqbal, Muhammad, Terziev, Momchil, Tezdogan, Tahsin and Incecik, Atilla (2024) Hull form optimisation to minimise the total resistance and dynamic responses of small fishing vessels. Ocean Engineering.

Record type: Article

Abstract

This paper presents a novel approach to ship hull form optimisation, aimed at minimising total resistance while simultaneously enhancing the seakeeping performance of a fishing vessel. When conducting optimisation process in minimising resistance, the method employs the minimisation of the y-axis radius of gyration (Ry)by optimising the longitudinal centre of gravity (LCG) and vertical centre of gravity(KG). The influence of altering LCG and KG on Ry, total resistance, and seakeeping is explored. Reducing Ry enhances sea keeping performance, lower added resistance,resulting in a reduced mean total resistance in waves. This finding demonstrates that itis possible to reduce resistance and improve seakeeping performance simultaneously without the need for multi-objective optimisation to balance the two. By employing the method outlined in this paper, seakeeping performance can be enhanced alongside resistance optimisation in a single process. The optimal hull form can reduce root mean square (RMS) vertical acceleration, RMS pitch motion, and added resistance on average by 1.79%, 1.51%, and 6.48%, respectively. In addition, the mean total resistance in waves for the optimised hull form was reduced by up to 4.15% compared to the initial hull form. This method offers a streamlined solution to achieving multiple performance objectives concurrently.

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More information

In preparation date: 2024
Keywords: Fishing boat, CFD, seakeeping, response surface methodology

Identifiers

Local EPrints ID: 496019
URI: http://eprints.soton.ac.uk/id/eprint/496019
ISSN: 0029-8018
PURE UUID: 65477658-d973-49eb-ad03-e1b7b62b1023
ORCID for Tahsin Tezdogan: ORCID iD orcid.org/0000-0002-7032-3038

Catalogue record

Date deposited: 29 Nov 2024 16:09
Last modified: 30 Nov 2024 03:11

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Contributors

Author: Muhammad Iqbal
Author: Momchil Terziev
Author: Tahsin Tezdogan ORCID iD
Author: Atilla Incecik

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