<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>During tight manoeuvres, twin-screw ships equipped with two rudders located in the propeller slip stream experience a fairly large imbalance in the hydrodynamic loads on the propeller and rudders. To investigate the phenomenon of rudder asymmetric load in some depth, manoeuvring experiments based on a free-running model were set up in which the kinematics of the model, the forces on the rudder and the stock moment were recorded. In parallel, with the aim of obtaining an exact estimation of free-stream characteristics of the rudder blade, corresponding wind tunnel experiments were also performed. Based on the results of this investigation, an analysis of the interaction effects within the hull-propeller-rudder system was performed and some conclusions were drawn.</p>
</abstract>

During tight manoeuvres, twin-screw ships equipped with two rudders located in the propeller slip stream experience a fairly large imbalance in the hydrodynamic loads on the propeller and rudders. To investigate the phenomenon of rudder asymmetric load in some depth, manoeuvring experiments based on a free-running model were set up in which the kinematics of the model, the forces on the rudder and the stock moment were recorded. In parallel, with the aim of obtaining an exact estimation of free-stream characteristics of the rudder blade, corresponding wind tunnel experiments were also performed. Based on the results of this investigation, an analysis of the interaction effects within the hull-propeller-rudder system was performed and some conclusions were drawn.

Investigation of Asymmetric Twin-Rudder Load Behaviour Through Free-Running Model Tests

Polish Maritime Research

This work is licensed under the Creative Commons Attribution 4.0 International License.

During tight manoeuvres, twin-screw ships equipped with two rudders located in the propeller slip stream experience a fairly large imbalance in the...

Investigation of Asymmetric Twin-Rudder Load Behaviour Through Free-Running Model Tests

Publié en ligne: 10 oct. 2023

Pages: 4 - 11

DOI: https://doi.org/10.2478/pomr-2023-0034

Mots clés
Manoeuvrability, Twin screw–twin rudder ship, Rudder, Resistance, Rudder normal force, Interactions

© 2023 Dobrin Efremov et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Investigation of Asymmetric Twin-Rudder Load Behaviour Through Free-Running Model Tests

Publié en ligne: 10 oct. 2023

Pages: 4 - 11

DOI: https://doi.org/10.2478/pomr-2023-0034

Mots clésManoeuvrability, Twin screw–twin rudder ship, Rudder, Resistance, Rudder normal force, Interactions

© 2023 Dobrin Efremov et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
Manoeuvrability, Twin screw–twin rudder ship, Rudder, Resistance, Rudder normal force, Interactions