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Hybrid Infrastructure for AUV Operations
Published in Fei Hu, Magnetic Communications, 2018
Seyedmohammad Salehi, Chien-Chung Shen, Aijun Song
In recent decades, autonomous underwater vehicles (AUVs; including underwater gliders) have emerged as effective and versatile tools to respond to vital needs in the oceans, lakes, and estuaries [6]. Successful applications enabled by AUVs include, just to name a few, adaptive environmental monitoring, geological surveys, ocean observations, and national defense. In these applications, AUVs may gather orders of magnitude more measurements than the traditional ship-based surveys, at much lower cost, and/or in hazardous conditions (e.g., underwater during hurricanes). In addition, the ability to retrieve imagery and scientific data from AUVs via a communication network will greatly enhance human–vehicle interactions and real-time decision making [7], thus supporting critical real-time underwater missions, e.g., disaster responses.
Special Applications and Inverse Techniques
Published in Paul C. Etter, Underwater Acoustic Modeling and Simulation, 2017
Graver (2005) noted that underwater gliders actually constitute a new class of autonomous underwater vehicles that glide by controlling their buoyancy and attitude using internal actuators. Gliders have useful applications in oceanographic sensing and data collection because of their low cost, autonomy, and capability for long-range, extended-duration deployments. They serve as adjuncts to ship-based hydrographic casts, towed sensors, UUVs/AUVs, and satellite-based sensors, but they also present challenges in communications common to all untethered subsurface sensors.
Shape optimization for blended-wing–body underwater glider using an advanced multi-surrogate-based high-dimensional model representation method
Published in Engineering Optimization, 2020
Ning Zhang, Peng Wang, Huachao Dong, Tianbo Li
As a type of autonomous underwater vehicle, the underwater glider has been widely used in oceanographic data collection owing to its long range, extended duration and low costs. An underwater glider can control its buoyancy and convert the lift on the wings into propulsive force through the water, and then propel itself forward (Bachmayer et al.2004). Compared with traditional underwater gliders such as SLOCUM (Webb, Simonetti, and Jones 2001), Spray (Sherman et al.2001) and Seaglider (Eriksen et al.2001), the blended-wing–body underwater glider (BWBUG) is a new kind of underwater glider with good hydrodynamic performance. The body of the BWBUG is designed to blend and smooth into the wings to reduce interference drag. The advantages of this configuration include maximum lift-to-drag ratio of the shape design, lower wetted area to volume ratio and additional effective wing chord at the wing–body junction.