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The steering and course keeping qualities of high-speed craft and the inception of dynamic instabilities in the following sea

journal contribution
posted on 2023-05-21, 09:51 authored by Bonci, M, De Jong, P, Van Walree, F, Martin RenilsonMartin Renilson, Huijsmans, RHM

Small high-speed craft are the most vulnerable to the severity of the sea: achieving a design which pairs good performance and acceptable levels of safety is not a trivial task. The seakeeping and manoeuvrability of these vessels play a crucial role in following sea conditions: dynamic instabilities, namely broaching-to and surf-riding, are more than a rare eventuality and threaten the survivability of the vessel and the life of the mariners. This study investigates the effects of the steering qualities on the broaching-to behaviour of a high-speed craft when it is sailing in following and stern-quartering waves.

The motions and loads of the vessel are simulated by means of a 3D time domain blended potential flow boundary element method (BEM), validated using captive model tests in regular waves carried out at the Seakeeping and Manoeuvring Basin (SMB) of MARIN. The hull directional stability and turning ability of the high-speed craft were artificially modified, showing that an increase in the directional stability as well as in the effectiveness of the steering can be beneficial to avoid the inception of broaching-to, but they have different consequences on the dynamics of the vessel's loss of control.

History

Publication title

Ocean Engineering: An International Journal of Research and Development

Volume

194

Issue

2019

Article number

106636

Number

106636

Pagination

1-18

ISSN

0029-8018

Department/School

Australian Maritime College

Publisher

Pergamon-Elsevier Science Ltd

Place of publication

The Boulevard, Langford Lane, Kidlington, Oxford, England, Ox5 1Gb

Rights statement

© 2019 Elsevier Ltd. All rights reserved.

Repository Status

  • Restricted

Socio-economic Objectives

Maritime; Expanding knowledge in engineering