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Advisor(s)
Abstract(s)
Os veículos não tripulados têm vindo a ter uma importância cada vez mais relevante
em vários cenários de operações civis e militares. Nesse contexto, o presente trabalho visa
desenvolver o projeto conceptual de um veículo anfíbio modular, no sentido que pode
facilmente ser adaptado para diferentes tipos de missões, não tripulado e de baixo custo
monetário (< 5 k€, sem sensores).
Tendo como principal foco a mais recente Diretiva Estratégica da Marinha
Portuguesa, são identificadas as necessidades e estabelecidas as especificações e
requisitos necessários para as possíveis missões de interesse direcionadas a veículos
anfíbios não tripulados. Prossegue-se com um estudo de mercado onde se averigua quais
as soluções já existentes e as características e capacidades de alguns veículos de
relevância atualmente disponíveis. Com base no conhecimento adquirido, inicia-se o
projeto conceptual propriamente dito onde se identifica e analisa os principais parâmetros
de forma a selecionar os mais indicados para o veículo a desenvolver.
Posto isto, realiza-se o dimensionamento do veículo onde são realizados estudos e
análises computacionais estruturais (estáticas e dinâmicas) e de fluidos de forma a
garantir que este cumpre com as especificações inicialmente estabelecidas. Assim sendo,
tem-se um veículo totalmente elétrico, com dimensões 1.056×0.674×0.451 m
(comprimento-largura-altura), com tração terrestre 6×6 capaz de atingir 20 km/h com
capacidades anfíbias de deslocação independente em meio aquático até 8 nós, com uma
autonomia total estimada de 90 minutos.
Como trabalho futuro, sugere-se o desenvolvimento do projeto detalhado do veículo
onde são contemplados e avaliados pormenores adicionais de construção e manufatura e
é estabelecida toda a documentação e ficheiros que descrevem as especificações e os
processos de produção e montagem do veículo, de forma a garantir a integridade e
desempenho do veículo em diferentes cenários de missão.
Unmanned vehicles have become increasingly important in various scenarios of civil and military operations. In this context, the present work aims at the conceptual design of a modular amphibious vehicle, in the sense that it can be easily adapted for different types of missions, unmanned and with low monetary cost (< 5 k€, without sensors). Having as focus the most recent Strategic Directive of the Portuguese Navy, the needs are identified, and the necessary specifications and requirements are established for the possible missions of interest directed to unmanned amphibious vehicles. Following, market research is conducted to determine which solutions already exist and the characteristics and capabilities of some relevant vehicles currently available. Based on the acquired knowledge, the design phase is addressed in which the main parameters are identified and analyzed in order to select the most suitable for the vehicle to be developed. Then, the geometry of the vehicle is addressed in which studies and computational structural and fluid analyses are conducted to ensure that it complies with the specifications initially established. With this, one obtains a fully electric vehicle, with dimensions of 1.056×0.674×0.451 m (length-width-height), with land 6×6 traction capable of reaching 20 km/h and with amphibious capabilities of independent movement in water up to 8 knots, with an estimated total autonomy of 90 minutes. As a future work, it is suggested the further development of the project, where additional construction and manufacturing details are adressed and evaluated, and all documentation and files that describe the specifications and the production and assembly processes of the vehicle are established, to improve the integrity and performance of the vehicle in different mission scenarios
Unmanned vehicles have become increasingly important in various scenarios of civil and military operations. In this context, the present work aims at the conceptual design of a modular amphibious vehicle, in the sense that it can be easily adapted for different types of missions, unmanned and with low monetary cost (< 5 k€, without sensors). Having as focus the most recent Strategic Directive of the Portuguese Navy, the needs are identified, and the necessary specifications and requirements are established for the possible missions of interest directed to unmanned amphibious vehicles. Following, market research is conducted to determine which solutions already exist and the characteristics and capabilities of some relevant vehicles currently available. Based on the acquired knowledge, the design phase is addressed in which the main parameters are identified and analyzed in order to select the most suitable for the vehicle to be developed. Then, the geometry of the vehicle is addressed in which studies and computational structural and fluid analyses are conducted to ensure that it complies with the specifications initially established. With this, one obtains a fully electric vehicle, with dimensions of 1.056×0.674×0.451 m (length-width-height), with land 6×6 traction capable of reaching 20 km/h and with amphibious capabilities of independent movement in water up to 8 knots, with an estimated total autonomy of 90 minutes. As a future work, it is suggested the further development of the project, where additional construction and manufacturing details are adressed and evaluated, and all documentation and files that describe the specifications and the production and assembly processes of the vehicle are established, to improve the integrity and performance of the vehicle in different mission scenarios
Description
Keywords
veículo anfíbio elétrico não tripulado desenvolvimento de produto projeto conceptual