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Analysis of the Hydrodynamic Performance of a Gate Rudder System

Lookup NU author(s): Dr Serkan TurkmenORCiD, Dr Chang LiORCiD, Dr Rosemary NormanORCiD

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

An alternative twin rudder system known as the Gate Rudder© has been applied to newbuild vessels and an existing ship with the aim to improve their hydrodynamic performance and reduce greenhouse gas emissions. The system consists of two asymmetric cross-sections and L-shaped blades located either side of a propeller. The blades generate thrust (duct effect) from the propeller and ship-included flow. Initially, forces and moments of a single blade were measured using a 6-axis strain gauge sensor in the towing tank without a propeller. An alternative measuring device, consisting of a Piezoelectric Macro-Fiber Composite Actuator, was then attached to the blade to investigate flow-induced forces. Finally, Computational Fluid Dynamic (CFD) simulations were compared with the experimental results to identify the source of the oscillating forces. The results show that flow-induced vibrations may occur on the gate rudder blades at both shedding frequencies and the structure's natural frequency.

Publication metadata

Author(s): Turkmen S, Wang L, Raftopoulos S, Li C, Norman R

Publication type: Article

Publication status: Published

Journal: IOP Conference Series: Materials Science and Engineering

Year: 2023

Volume: 1288

Online publication date: 09/08/2023

Acceptance date: 01/08/2023

Date deposited: 12/04/2024

ISSN (electronic): 1757-899X

Publisher: IOP Publishing Ltd

URL: https://doi.org/10.1088/1757-899X/1288/1/012059

DOI: 10.1088/1757-899X/1288/1/012059

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