Results 1 to 10 of about 7,883 (208)

Improvement of Rudder Cavitation Performance Using Rudder Inflow Measurements in Large Cavitation Tunnel

open access: yesJournal of Marine Science and Engineering, 2022
One of the important things in a ship’s rudder design is the incidence angle of the rudder inflow to improve rudder cavitation performance. In the present study, the rudder inflow is measured by a 3-D LDV (laser Doppler velocimetry) system in a large ...
Bu-Geun Paik   +2 more
exaly   +4 more sources

Resistance and propulsion performance of a twin skeg ship with different rudder angle [PDF]

open access: yesScientific Reports
Rudder angle will change the flow field, resulting in different loads and interactions on the hull-propeller-rudder, which will affect the resistance and self-propulsion performance of the ship, and this effect will be amplified on the twin skeg ship ...
Chen Weimin   +4 more
doaj   +2 more sources

Hydrodynamic characteristics of underwater vehicle with X-rudder configuration coupling with incidence and rudder angle

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectiveDue to the different arrangement and control mode of an underwater vehicle with an X-rudder configuration, the effectiveness of the after-control-surface is influenced by the angle of incidence of the underwater vehicle.MethodsNumerical ...
Jijun CHEN   +5 more
doaj   +2 more sources

A Fault-tolerant Steering Prototype for X-rudder Underwater Vehicles

open access: yesSensors, 2020
The X-rudder concept has been applied to more and more autonomous underwater vehicles (AUVs) in recent years, since it shows better maneuverability and robustness against rudder failure compared to the traditional cruciform rudder.
Wenjin Wang, Yingkai Xia, Guohua Xu
exaly   +3 more sources

A numerical and experimental study on the performance of a twisted rudder with wavy configuration

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2019
In this paper, a Wavy Twisted Rudder (WTR) is proposed to address the discontinuity of the twisted section and increase the stalling angle in comparison to a conventional full-spade Twisted Rudder (TR).
Yong Jin Shin   +2 more
exaly   +3 more sources

Influence of rudder blade material and rudder stock position on characteristics of induced noise in submarine rudder turning

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveThis paper aims to explore the influence of rudder-fin combined structure on the induced noise. Methods To this end, the flow field and sound field of a rudder are calculated using the two-way fluid-structure interaction theory, and the sound ...
Likun PENG   +3 more
doaj   +2 more sources

Twisted rudder for reducing fuel-oil consumption

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2014
Three twisted rudders fit for large container ships have been developed; 1) the Z-twisted rudder that is an asymmetry type taking into consideration incoming flow angles of the propeller slipstream, 2) the ZB-twisted rudder with a rudder bulb added onto ...
Jung-Eun Choi
exaly   +5 more sources

Design of X-rudder autonomous underwater vehicle’s quadruple-rudder allocation with Lévy flight character

open access: yesInternational Journal of Advanced Robotic Systems, 2017
This article addresses one quadruple-rudder allocation method for an autonomous underwater vehicle (AUV) equipped with X rudder, in which all of the rudders can be operated independently.
Guocheng Zhang   +2 more
exaly   +2 more sources

Analysis of Known and Construction of New Mathematical Models of Forces on a Ship's Rudder in an Unbounded Flow [PDF]

open access: yesTransNav, 2023
The forces arising on the ship's rudder at different angles of attack in an unbounded flow are investigated. The components of the resulting force on the rudder are represented in terms of the rudder lift and drag forces, as well as in terms of the ...
Olexandr Kryvyi   +2 more
doaj   +1 more source

Experimental Study on the Flow Field, Force, and Moment Measurements of Submarines with Different Stern Control Surfaces

open access: yesJournal of Marine Science and Engineering, 2023
Flow field performance tests of submarine models with cross-rudder and X-rudder stern control surfaces were conducted to study X-rudders’ performance in non-uniform flow fields.
Lin Ke, Jinming Ye, Qiufeng Liang
doaj   +1 more source

Home - About - Disclaimer - Privacy