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Ngoc-Duc Nguyen, Hyeung-Sik Choi, Han-Sol Jin, Jiafeng Huang, Jae-Heon Lee
Pág. 135 - 146
Hybrid underwater glider (HUG) is an advanced autonomous underwater vehicle with propellers capable of sustainable operations for many months. Under the underwater disturbances and parameter uncertainties, it is difficult that the HUG coordinates with th...
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Kirill Rozhdestvensky
The paper employs a simplified approach to modeling of dynamics of submersion of a «diving buoy» subject to a depth-wise water density gradient and experiencing compression of the hull due to action of pressure. The latter effect is accounted for through...
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Asghar Khan, Wang Liquan, Wang Gang, Muhammad Imran, Hafiz Muhammad Waqas and Asad A. Zaidi
In this paper, a novel concept designed of a multi-legged underwater manned seabed walking robot is presented. The robot will be used in both shallow water current (1?2 m/sec) and deep water up to 500 m. It is powered by an external electric power source...
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Haocai Huang, Chenyun Zhang, Weiwei Ding, Xinke Zhu, Guiqing Sun and Hangzhou Wang
Floating ocean seismograph (FOS) is a vertical underwater vehicle used to detect ocean earthquakes by observing P waves at teleseismic distances in the oceans. With the requirements of rising to the surface and transmitting data to the satellite in real ...
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Mai The Vu, Seong Han Kim, Van P. Nguyen, Nguyen Xuan-Mung, Jiafeng Huang, Dong-Wook Jung and Hyeung-Sik Choi
Underwater vehicles have capacity limits for control inputs, within which their time-optimal trajectories (TOTs) can be formulated. In this study, the fastest trajectory for the depth control of a hybrid underwater glider (HUG) was found using buoyancy e...
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Qingchao Xia, Bingzhe Chen, Xiaotong Sun, Canjun Yang, Sheng Zhang and Yanhu Chen
Marine resources are rich and contain an enormous amount of energy. The exploration of marine resources and the effective use of ocean energy have gradually become the research focus of scholars all over the world. A profiler driven by ocean thermal ener...
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Brij Kishor Tiwari and Rajiv Sharma
The design process for Variable Buoyancy System (VBS) is not known in full, and existing approaches are not scalable. Furthermore, almost all the small size Autonomous Underwater Vehicles/Gliders (AUVs/G?s) use very low capacity of buoyancy change (in th...
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Mingjie Li, Baoheng Yao, Caoyang Yu and Lian Lian
Underwater gliders are widely used in oceanic observation, which are driven by a hydraulic buoyancy regulating system and a movable mass. Better motion performance can help us to accomplish observation tasks better. Therefore, a command filtered adaptive...
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Zhiguang Wang, Caoyang Yu, Mingjie Li, Baoheng Yao and Lian Lian
The underwater glider is a kind of novel invention that has been proven to be perfect for long-duration, wide-range marine environmental monitoring tasks. It is controlled by changing the buoyancy and adjusting the posture. For precise control of the und...
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Wenchuan Zang, Ming Chen, Tingting Guo, Xin Luan and Dalei Song
Glider-based mobile currents observations are gaining increasing research attention. However, the quality of such observations is directly related to the pitch accuracy of the glider. As a buoyancy-driven robot, the glider will be strongly disturbed duri...
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Lin Yu, Qinghao Meng and Hongwei Zhang
To achieve rapid and flexible vertical profile exploration of deep-sea hybrid structures, a multi-joint autonomous underwater vehicle (MJ-AUV) with orthogonal joints was designed. This paper focuses on the 3-dimensional (3D) modeling and attitude control...
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Timothy Sands
The major premise of deterministic artificial intelligence (D.A.I.) is to assert deterministic self-awareness statements based in either the physics of the underlying problem or system identification to establish governing differential equations. The key...
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Mohsen Rostami, Jafer Kamoonpuri, Pratik Pradhan and Joon Chung
A real-time flight simulation tool is proposed using a virtual reality head-mounted display (VR-HMD) for remotely piloted airships operating in beyond-line-of-sight (BLOS) conditions. In particular, the VR-HMD was developed for stratospheric airships fly...
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Ross Eldred, Johnathan Lussier and Anthony Pollman
This article details the design, construction and implementation of a novel, spherical unmanned underwater vehicle (UUV) prototype for operations within confined, entanglement-prone marine environments. The nature of shipwreck interiors, the exploration ...
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Yuqing Chen, Yaowen Liu, Yangrui Meng, Shuanghe Yu and Yan Zhuang
Unmanned Aerial Underwater Vehicles (UAUVs) with multiple propellers can operate in two distinct mediums, air and underwater, and the system modeling of the autonomous vehicles is a key issue to adapt to these different external environments. In this pap...
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João Falcão Carneiro, João Bravo Pinto, Nuno A. Cruz and Fernando Gomes de Almeida
The growing needs in exploring ocean resources have been pushing the length and complexity of autonomous underwater vehicle (AUV) missions, leading to more stringent energy requirements. A promising approach to reduce the energy consumption of AUVs is to...
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István Derzsi, János Takács
Pág. 156 - 163
At present times, in the context of rising fuel and energy prices the energy saving is very actual phenomenon. A better building insulation and the replacement of large transparent constructions will significantly reduce heat loss of the building. The hy...
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YURI N. SKIBA,S. N. BULGAKOV
A series of laboratory experiments with forced temperature and salinity were conducted using an apparatus (channel between pole and equator boxes) designed to duplicate the conceptual Stommel?s model of thermohaline circulation. The flow patterns are ...
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Ruichun Dong, Xu Lin, Jie Liu, Mengqi Hu, Zezheng Liu, Jingze Yang and Libin Du
Miniaturized detection devices in the ocean generally experience problems such as short endurance and unreliable power supplies. This article aimed to develop a dynamic ocean temperature difference energy collection device to capture ocean temperature di...
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Yuri Katz and Morel Groper
This study presents the complete, detailed development process of an enhanced one-man portable Lagrangian float designed for littoral deployment to depths of up to 300 m. The design focused on maximization of the Lagrangian characteristics of the hull, m...
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