Publication
Hydrodynamic Analysis and Optimization of an Autonomous Surface Vehicle
| Summary: | Maritime Unmanned Vehicles are tools being developed to explore oceans, rivers, lakes and reservoirs. These tools are essential to completely understand the unknown maritime world, since they have relatively low operation costs and can perform several multipurpose investigations. These main applications can be divided in different operations types like oceanographic and atmosphere measurements. One type of these tools are called Autonomous Surface Vehicles (ASV), which, as the name implies, are autonomous vessels that operate at water’s surface. In this dissertation, different types of geometries for a next-generation bathymetric ASV are studied. The first two are more conventional geometries with the first being a flat bottom hull, and the second being a hybrid one. The last one is a new type that has recently gained recognition: a Small-Waterplane-Area Twin-Hull (SWATH) geometry. This one, consists of an axisymmetric body, two small arms that separates the body from the payload, an elliptical nose and a conical tail. All geometries have been designed taking into account the best ranges of empirical/analytical relations, previously studied by other authors. [...] |
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| Main Authors: | Oliveira, Luís Alberto Silva |
| Subject: | Computational Fluid Dynamics Hull Hydrodynamics Small- Waterplane-Area Twin-Hull Veículos Autónomos de Superfície |
| Year: | 2018 |
| Country: | Portugal |
| Document type: | master thesis |
| Access type: | restricted access |
| Associated institution: | Universidade da Beira Interior |
| Language: | English |
| Origin: | uBibliorum |
| Summary: | Maritime Unmanned Vehicles are tools being developed to explore oceans, rivers, lakes and reservoirs. These tools are essential to completely understand the unknown maritime world, since they have relatively low operation costs and can perform several multipurpose investigations. These main applications can be divided in different operations types like oceanographic and atmosphere measurements. One type of these tools are called Autonomous Surface Vehicles (ASV), which, as the name implies, are autonomous vessels that operate at water’s surface. In this dissertation, different types of geometries for a next-generation bathymetric ASV are studied. The first two are more conventional geometries with the first being a flat bottom hull, and the second being a hybrid one. The last one is a new type that has recently gained recognition: a Small-Waterplane-Area Twin-Hull (SWATH) geometry. This one, consists of an axisymmetric body, two small arms that separates the body from the payload, an elliptical nose and a conical tail. All geometries have been designed taking into account the best ranges of empirical/analytical relations, previously studied by other authors. [...] |
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