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Gate rudder and ship design
Citation Link: https://doi.org/10.15480/882.9301
Publikationstyp
Conference Paper
Date Issued
2024-04-04
Sprache
English
Author(s)
University of Strathclyde (UoS), Glasgow, United Kingdom
University of Strathclyde (UoS), Glasgow, United Kingdom
TORE-DOI
Start Page
311
End Page
325
Citation
8th International Symposium on Marine Propulsors (smp 2024)
Contribution to Conference
Publisher
Norwegian University of Science and Technology, Department of Marine Technology
ISBN
978-82-691120-5-4
Peer Reviewed
true
The Gate Rudder System (GRS) is a new integrated propulsion system that combines steering and propulsion uniquely and unconventionally. This system's most distinctive application feature is that the existing rudder is removed from the original position, and two new rudder blades are placed either side of the propeller. As a result, the rudder, which is conventionally a resistance source, becomes a propulsion device that can generate thrust.
In addition to the above hydrodynamic advantage, the effect of the hydrodynamic side force generated on the gate rudder when the ship is sailing with a drift angle provides the hull with a high course stability and smaller yawing and rolling motion in wind and waves. This reduces the inservice resistance.
The advantages mentioned above and other unique features of the gate rudder system (GRS) suggest a rethinking of conventional hull form design and lead to new types of hull forms that may not have existed so far, as discussed in this paper.
In addition to the above hydrodynamic advantage, the effect of the hydrodynamic side force generated on the gate rudder when the ship is sailing with a drift angle provides the hull with a high course stability and smaller yawing and rolling motion in wind and waves. This reduces the inservice resistance.
The advantages mentioned above and other unique features of the gate rudder system (GRS) suggest a rethinking of conventional hull form design and lead to new types of hull forms that may not have existed so far, as discussed in this paper.
Subjects
Gate Rudder
Energy Saving Device
Open type Ducted Propeller
Scale Effect of thrust deduction factor
DDC Class
620: Engineering
Publication version
publishedVersion
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Sasaki-GateRudderSystemAndShipDesign-1107-1-final.pdf
Type
Main Article
Size
3.19 MB
Format
Adobe PDF