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  • Design and construction of the GUANAY-II autonomous underwater vehicle

     Gomariz Castro, Spartacus; Gonzalez Agudelo, Julian; Arbos Martos, Alejandro; Masmitja Rusinyol, Ivan; Masmitja Rusinyol, Gerard; Prat Tasias, Jordi
    IEEE Oceanic Engineering Society
    Presentation's date: 2011-06-07
    Presentation of work at congresses

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    This paper presents the design and construction of Guanay II vehicle. It is an autonomous underwater vehicle that navigates over the sea surface and, at certain fixed points, dives vertically to obtain a profile of a water column. The designed vehicle has a double hull structure. The external fiberglass hull,which is not watertight, has been designed in accordance with Myring profiles to provide a good hydrodynamic performance.The watertight module located inside the external hull is made of aluminum and contains the immersion actuator, power batteries and the electronic system to control vehicle operations. The control system is divided in several subsystems: navigation, propulsion/immersion, safety, communication and data acquisition. The vehicle is 2300mm long by 320mm wide, and weighs 90kg.

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    Preliminary OBSEA mooring design  Open access

     Arbos Martos, Alejandro; Nogueras Cervera, Marc; Del Rio Fernandez, Joaquin
    Instrumentation viewpoint
    Date of publication: 2010-12-01
    Journal article

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    The Obsea Cabled Observatory (www.obsea.es) is going to be expanded with new sea surface sensors such a meteorological station and a video camera. These new sensors are going to be installed in a surface buoy with wireless communication to the Obsea Data Center at SARTI’s Laboratories. The mooring design and simulations are presented in this paper, taken into account the marine conditions of the area located in the Vilanova I la Geltrú coast in the Metiterranean Sea. The simulations of the static and dynamic behaviour of the anchored buoy were done with the software OrcaFlex 9.4.

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    Preliminary studies of moored power cables  Open access

     Arbos Martos, Alejandro; Prat Farran, Joana d'Arc; Del Rio Fernandez, Joaquin; Sales Casals, Lluís Ramon
    Instrumentation viewpoint
    Date of publication: 2010-12-01
    Journal article

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    New green energy sources deployed at sea, in mobile platforms, will use power cables in order to transport the energy generated at sea surface to the bottom. Theses power cables will be exposed to the dynamic behaviour of the platform movements, due to waves, currents and wind. A preliminary study of the static behaviour of these cables in function of parameters like mass, bending stiffness, length, water density or seabed friction is presented in this article. Simulations are been done with Orcaflex 9.4 environment. Three different cables have been simulated to observe their deformation and forces.

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    Watertight tests for OBSEA equipments in the hyperbaric chamber  Open access

     Carreras Pons, Normandino; Nogueras Cervera, Marc; Arbos Martos, Alejandro; Manuel Lazaro, Antonio
    International Workshop on Marine Technology
    Presentation of work at congresses

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    Description of the procedures to assure the proper water protection of the equipments to be installed in the OBSEA subsea observatory.

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    Watertight test for OBSEA equipments in the hyperbaric chamber  Open access

     Carreras Pons, Normandino; Nogueras Cervera, Marc; Arbos Martos, Alejandro; Manuel Lazaro, Antonio
    Instrumentation viewpoint
    Date of publication: 2009-11-01
    Journal article

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    Description of the procedures to assure the proper water protection of the equipments to be installed in the OBSEA subsea observatory.

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    Autonomous vehicle development for vertical submarine observation  Open access

     Gomariz Castro, Spartacus; Pallares Valls, Oriol; Prat Tasias, Jordi; Arbos Martos, Alejandro; Viñolo, Carlos
    Instrumentation viewpoint
    Date of publication: 2009-10-01
    Journal article

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    This work proposes the development of an ocean observation vehicle. This vehicle, a hybrid between Autonomous Underwater Vehicles (AUV) and Autonomous Surface Vehicles (ASV) moves on the surface of the sea and makes vertical immersions to obtain the profiles of a water column according to a pre-established plan. Its design provides lower production cost and higher efficiency. GPS navigation allows the platform to move along the surface of the water while a radio-modem provides direct communication links and telemetry.

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    Autonomous vehicle development for vertical submarine observation  Open access

     Gomariz Castro, Spartacus; Prat Tasias, Jordi; Arbos Martos, Alejandro; Pallares Valls, Oriol; Viñolo, Carlos
    THIRD INTERNATIONAL WORKSHOP ON MARINE TECHNOLOGY
    Presentation's date: 2009-11-19
    Presentation of work at congresses

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    This work proposes the development of an ocean observation vehicle. This vehicle, a hybrid between Autonomous Underwater Vehicles (AUV) and Autonomous Surface Vehicles (ASV) moves on the surface of the sea and makes vertical immersions to obtain the profile of a water column according to a pre-established plan. Its design provides lower production cost and higher efficiency. GPS navigation allows the platform to move along the surface of the water while a radio-modem provides direct communication links and telemetry.