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Conceptual Design of an Unmanned Electrical Amphibious Vehicle for Ocean and Land Surveillance
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| 4.5 MB | Adobe PDF |
Orientador(es)
Resumo(s)
Unmanned vehicles (UVs) have become increasingly important in various scenarios of civil and military operations. The present work aims at the conceptual design of a modular Amphibious Unmanned Ground Vehicle (A-UGV) that can be easily adapted for different types of land and/or water missions with low monetary cost (EUR < 5 k, without sensors). Basing the design on the needs highlighted in the 2021 review of the Strategic Directive of the Portuguese Navy, the necessary specifications and requirements are established for two mission scenarios. Then, a market research analysis focused on vehicles currently available and their technological advances is conducted to identify existing UV solutions and respective characteristics/capabilities of interest to the current work. To study and define the geometry of the hull and the configuration of the A-UGV itself, preliminary computational structural and fluid analyses are carried out to ensure it complies with the specifications initially established. As a result, one obtains a fully electric vehicle with approximate dimensions of 1050 × 670 × 450 mm (length–width–height), enabled with 6 × 6 traction capable of reaching 20 km/h on land, which possesses amphibious capabilities of independent propulsion in water up to 8 kts and an estimated autonomy of over 60 min.
Descrição
Funding Information:
The initial research on autonomous UGVs may be dated back to the late 1960s, with the application of artificial intelligence for controlling vehicles in a project funded by the Defense Advanced Research Projects Agency (DARPA) and developed at Stanford Research Institute. This research led to a mobile wheeled robot, SHAKEY [,], with a steerable TV camera, ultrasonic range finder, and touch range sensors connected via radio (RF link) to a central computer (SDS-940) capable of performing autonomous navigation and exploration tasks. Even though SHAKEY never achieved autonomous operation, it paved the ground to define the AI research agenda [].
Publisher Copyright:
© 2024 by the authors.
Palavras-chave
autonomous vehicle environmental monitoring land patrol maritime security modular design naval operations oceanic reconnaissance surveillance capabilities unmanned systems vehicle design Automotive Engineering