Results 11 to 20 of about 936 (166)

Adaptive Path Tracking Control of X-Rudder AUV Under Roll Constraints

open access: yesJournal of Marine Science and Engineering
This paper addresses the spatial path tracking problem of the X-rudder autonomous underwater vehicle (AUV) under random sea current disturbances.
Yaopeng Zhong   +4 more
doaj   +2 more sources

Investigation of the Asymmetric Features of X-Rudder Underwater Vehicle Vertical Maneuvring and Novel Motion Prediction Technology

open access: yesJournal of Marine Science and Engineering
An X-rudder underwater vehicle’s hydrodynamic force acting on its rudder will display asymmetrical characteristics during vertical movement that are absent from a cross-rudder vehicle.
Yinghua Li   +5 more
doaj   +2 more sources

Model‐Free Deep Reinforcement Learning with Multiple Line‐of‐Sight Guidance Laws for Autonomous Underwater Vehicles Full‐Attitude and Velocity Control

open access: yesAdvanced Intelligent Systems
Autonomous underwater vehicles (AUVs) are increasingly utilized, driving the need for enhanced autonomy. Conventional proportional–integral–derivative (PID) algorithms require frequent control parameter adjustments under varying voyage conditions, which ...
Chengren Yuan   +5 more
doaj   +2 more sources

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

Research on Fault-tolerant Control Allocation Technology for X-rudder UUV

open access: yesJournal of Physics: Conference Series, 2023
Abstract X-rudder UUV is a typical redundant control system with high reliability and high control difficulty. This article researches the reconfigurable control allocation technology of X-rudder UUV control, analyzes and sorts out typical fault types of X-rudder UUV, and designs a reconfigurable control allocation algorithm without ...
Hao Xu   +3 more
openaire   +1 more source

Influence of Design Parameters of High-Speed Undersea Vehicles with X-Shaped All-Movable Rudder and Cross-Shaped Fin on Maneuverability

open access: yes水下无人系统学报, 2023
Parameterized shape of the undersea vehicle with X-shaped full-rudder and cross-shaped fin layout was established.The function of the fluid dynamic coefficient of the undersea vehicle with the size of each part was established by the principle of ...
Rui ZHANG
doaj   +1 more source

Design of space turning motion control system of X-rudder submarine

open access: yesZhongguo Jianchuan Yanjiu, 2020
[Objectives] In order to solve the problem of space turning motion control for the X-rudder submarine,a fuzzy control system for turning of the X-rudder submarine is designed by using the fuzzy control method.[Methods] A weight fuzzy system for the X ...
XIA Ji, HUANG Bin
doaj   +1 more source

Anti-roll control and maneuverability test of X-rudder autonomous underwater vehicle

open access: yesZhongguo Jianchuan Yanjiu, 2021
ObjectiveAiming at solving the roll problem of the new X-rudder autonomous underwater vehicle (XAUV) during field tests, a series of anti-roll fixed depth and heading control experiments and maneuverability tests are carried out.
Zhemin HUANG   +5 more
doaj   +1 more source

Influence of Stern Rudder Type on Flow Noise of Underwater Vehicles

open access: yesJournal of Marine Science and Engineering, 2022
The stern rudder of an underwater vehicle has a significant impact on the wake field and the flow noise. Hence, it is important to optimize the design of the stern rudder for reducing the radiated noise.
Chunxu Wang   +4 more
doaj   +1 more source

Effects of X Rudder Area on the Horizontal Mechanical Properties and Wake Flow Field of Submarines

open access: yesJournal of Physics: Conference Series, 2021
Abstract X rudder is particularly important for submarine maneuverability, but its influence on wake flow field remains largely unknown. In this study, the X rudder was scaled down three-dimensionally to 80%, 85%, 90%, 95% and 100% of the original rudder area with unchanged aspect ratio and installation position of rudder shaft.
Xiao Xiao   +4 more
openaire   +1 more source

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