Results 21 to 30 of about 17,434 (224)

Research on Unmanned Underwater Vehicle Threat Assessment [PDF]

open access: yesIEEE Access, 2019
The unmanned underwater vehicle (UUV) plays an ever increasing and important role in the modern marine environment. In particular, the tasks of underwater reconnaissance and surveillance, underwater mine hunting and anti-submarine warfare, all poses a serious and dangerous threat to humans.
Hongfei Yao   +4 more
openaire   +2 more sources

Optimal design of power generation equipment for autonomous underwater vehicle

open access: yesAdvances in Mechanical Engineering, 2018
Autonomous underwater vehicle with the ability to generate electricity is an effective solution for detecting the ocean. In this article, a vertical-axis current generator for underwater vehicle is designed.
Fen Guo   +3 more
doaj   +1 more source

Influence of geometric imperfections on the axially loaded composite conical shells with and without cutout

open access: yesAIP Advances, 2020
The nonlinear stability analysis of a structure with initial geometric imperfections is very complex, difficult, and unsolved yet in designing. At present, there are no unified design guidelines for imperfection sensitive metal shells (spherical ...
Zhun Li, Yonghui Cao, Guang Pan
doaj   +1 more source

Tracking control of an underactuated unmanned underwater vehicle [PDF]

open access: yesProceedings of the 2005, American Control Conference, 2005., 2005
In this paper, a robust position tracking controller is developed for an autonomous, underactuated, unmanned underwater vehicle (UUV). Specifically, the proposed controller forces the three dimensional (i.e., longitudinal, latitudinal, and depth) position tracking error to within an arbitrarily small region about zero (i.e., global exponential ...
Abhijit Baviskar   +3 more
openaire   +1 more source

Imperfection sensitivity analysis for a composite bowed-out shell under axial compression

open access: yesAdvances in Mechanical Engineering, 2019
In this article, we present a systematic work to investigate the imperfection sensitivity of composite bowed-out shells with different layup patterns under axial compression. Two types of geometric imperfections, including eigenmode-shaped imperfections (
Zhun Li, Guang Pan, Kechun Shen
doaj   +1 more source

Dynamics Modeling and Motion Simulation of USV/UUV with Linked Underwater Cable

open access: yesJournal of Marine Science and Engineering, 2020
This paper describes a study on the dynamic modeling and the motion simulation of an unmanned ocean platform to overcome the limitations of existing unmanned ocean platforms for ocean exploration.
Sung Min Hong   +2 more
doaj   +1 more source

Deep Reinforcement Learning for Vectored Thruster Autonomous Underwater Vehicle Control

open access: yesComplexity, 2021
Autonomous underwater vehicles (AUVs) are widely used to accomplish various missions in the complex marine environment; the design of a control system for AUVs is particularly difficult due to the high nonlinearity, variations in hydrodynamic ...
Tao Liu, Yuli Hu, Hui Xu
doaj   +1 more source

The Safe-Port project: an approach to port surveillance and protection [PDF]

open access: yes, 2010
SAFE-PORT is a recently started project addressing the complex issue of determining the best configurations of resources for harbour and port surveillance and protection.
Abreu, M.A.   +13 more
core   +1 more source

Efficient dynamic simulation of an unmanned underwater vehicle with a manipulator [PDF]

open access: yesProceedings of the 1994 IEEE International Conference on Robotics and Automation, 2002
In this paper, an efficient dynamic simulation algorithm is developed for an unmanned underwater vehicle (UUV) with a robotic manipulator. It is based on an efficient O(N) algorithm where N is the number of links in the manipulator, and has been extended to include the full effects of a mobile base and various hydrodynamic forces that are exerted on ...
McMillian, Scott   +2 more
openaire   +2 more sources

A Quick Deployment Method for Sonar Buoy Detection Under the Overview Situation of Underwater Cluster Targets

open access: yesIEEE Access, 2020
Aiming at the typical problems of deploying sonar buoys in appointed sea area, this paper summarizes two problems existing in previous studies and puts forward a quick deployment method for sonar buoys detection under the overview situation of underwater
Y. Ma   +6 more
doaj   +1 more source

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