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Lin Ke, Jinming Ye and Qiufeng Liang
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. The tests compared performance parameters such as resistance, lateral steeri...
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Bu-Geun Paik, So-Won Jeong, Young-Ha Park, Jong-Woo Ahn, Ilryong Park and Jein Kim
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 cav...
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Diego Villa, Andrea Franceschi and Michele Viviani
The proper evaluation of the Rudder?Propeller interactions is mandatory to correctly predict the manoeuvring capability of a modern ship, in particular considering the commonly adopted ship layout (rudder often works in the propeller slipstream). Modern ...
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Romain Neuville, Jacynthe Pouliot, Florent Poux, Laurent de Rudder and Roland Billen
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Jian Zhao, Cailei Liang and Xianku Zhang
The rudder is used for damping the roll motion of a ship. Study of this motion is the essence of this paper. The responses of yaw and roll motions are different as the rudder angle varies. The low frequency motion of the rudder mainly affects the ship?s ...
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Shuo Liu, Zijing Yu, Tao Wang, Yifan Chen, Yu Zhang and Yong Cai
In the traditional motion control method of an unmanned sailboat, the sail and rudder are divided into two independent controllers. The sail is used to obtain the thrust and the rudder is used to adjust the yaw angle. The traditional control method does ...
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Noriyuki Sasaki, S. Kuribayashi, M. Fukazawa and Mehmet Atlar
This paper presents an investigation on the scale effects associated with the powering performance of a Gate Rudder System (GRS) which was recently introduced as a novel energy-saving propulsion and maneuvring device. This new system was applied for the ...
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Jianping Yuan, Yingying She, Yinghao Zhang, Jun Xu and Lei Wan
This study focuses on addressing the the coupling problem of the vertical and horizontal plane of an autonomous underwater vehicle (AUV) with an X-rudder. To guarantee the steering performance of the AUV, a depth and course control algorithm based on an ...
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Ru-Yi Ren, Zao-Jian Zou and Jian-Qin Wang
The motion control of a surface ship based on a four degrees of freedom (4-DoF) (surge, sway, roll, and yaw) maneuvering motion model is studied in this paper. A time-scale decomposition method is introduced to solve the path-following problem, implement...
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Suli Lu, Jialun Liu and Robert Hekkenberg
A good mesh is a prerequisite for achieving reliable results from Computational Fluid Dynamics (CFD) calculations. Mesh properties include mesh types, computational domain sizes, and node distributions. However, in literature, we found no clear consensus...
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Gisu Song, Hyounggil Park and Taegoo Lee
In order to design a safe shafting system in a ship, it is vital to precisely predict load on stern tube bearing. It is well known that load on stern tube bearing is directly influenced by the eccentric force of a propeller. In this paper, the effect of ...
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Jing Huang, Zhenkun Song, Jiale Wu, Haoyu Guo, Cheng Qiu and Qifan Tan
The aerospace electro-hydraulic servo simulator is used to simulate the air load received during flight, and is used for the performance test and acceptance test of aerospace servo actuators on the ground. The force loading accuracy of the load simulator...
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Yong-Jin Shin, Moon Chan Kim, Kyuong-Wan Lee, Woo Seok Jin and Jin Wook Kim
The maneuverability performance of a KCS with energy-saving devices was investigated. A bulb-type wavy rudder and an asymmetric pre-swirl stator were used as energy-saving devices because their use resulted in considerable efficiency gain. A validated si...
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Jan Geese, Julian Kimmerl, Marc Nadler and Moustafa Abdel-Maksoud
The investigation of cavitating trailing vortices emerging from marine propellers is of great interest in the industry. With the help of computational fluid dynamics (CFD), studying the cavitating trailing vortices may be facilitated. However, limitation...
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Benedetto Piaggio, Giuliano Vernengo, Marco Ferrando, Giorgio Mazzarello and Michele Viviani
Submarines? manoeuvrability both in intact and degraded operating conditions is the main design concern starting at the very early stages of design. This increased complexity of the design process compared to a surface vehicle can only be handled by usin...
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Zhongyuan Liu and Binqian Zhang
To solve the issues of directional control and aerodynamic moment coupling for a low-aspect tailless configuration with a diamond-shaped wing, we herein propose the concept of a flow coupling rudder (FCR). The FCR was composed of two basic control surfac...
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Vijayanandh Raja, Ramesh Murugesan, Parvathy Rajendran, Surya Palaniappan, Hussein A. Z. AL-bonsrulah, Darshan Kumar Jayaram and Mohammed Al-Bahrani
The conceptual design, component selection, and deployment experiments of an unmanned amphibious system (US) with a unique Becker in vertical stabilizer based on hydrodynamic research are included in this work. The use of USs is currently expanding signi...
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Yingkai Xia, Zhemin Huang, Kan Xu, Guohua Xu and Ye Li
This paper proposes a novel three-dimensional trajectory tracking control methodology for a heterogeneous X-rudder autonomous underwater vehicle (XAUV) that can achieve finite-time convergence, complex actuator dynamics handling, and energy-efficient opt...
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Changzhe Chen, Lu Zou, Zaojian Zou and Haipeng Guo
Propeller modeling in virtual captive model tests is crucial to the prediction accuracy of ship maneuvering motion. In the present study, the Computational Fluid Dynamics (CFD) method with two propeller modeling methods, Sliding Mesh (SM) and Multiple Re...
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Alessandro Scarpellini, Valentina Finazzi, Paolo Schito, Arianna Bionda, Andrea Ratti and Ali Gökhan Demir
This work demonstrates the advantages of using laser powder bed fusion for producing a rudder bulb of a moth class sailing racing boat via laser powder bed fusion (LPBF). The component was designed to reduce weight using an AlSi7Mg0.6 alloy and incorpora...
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