Phasor-Like Interpretation of the Angular Velocity of the Wheels of Omnidirectional Mobile Robots

Omnidirectionality is a feature that allows motion in any direction without orientation maneuvers. Omnidirectional mobile robots are usually based on omni or mecanum wheels. The motion of an omnidirectional mobile robot is defined by a target motion command M = (v, α, ω), where v is the module of th...

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Detalhes bibliográficos
Autores: Palacín Roca, Jordi, Rubies, Elena, Bitriá Ribes, Ricard, Clotet Bellmunt, Eduard
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2023
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositório:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/464006
Acesso em linha:https://doi.org/10.3390/machines11070698
https://hdl.handle.net/10459.1/464006
Access Level:Acceso aberto
Palavra-chave:Omnidirectional mobile robot
Omni wheel
Mecanum wheel
Motion command
Phasor-like notation
Descrição
Resumo:Omnidirectionality is a feature that allows motion in any direction without orientation maneuvers. Omnidirectional mobile robots are usually based on omni or mecanum wheels. The motion of an omnidirectional mobile robot is defined by a target motion command M = (v, α, ω), where v is the module of the translational velocity; α is the angular orientation of the translational velocity, and ω is the angular velocity of the mobile robot. The motion is achieved by converting the target motion command into the target angular velocities that must be applied to the active wheels of the robot. This work proposes a simplified phasor-like interpretation of the relationship between the parameters of a specific motion command and the angular velocities of the wheels. The concept of phasor-like notation is validated from the analysis of the kinematics of omnidirectional mobile robots using omni wheels and mecanum wheels. This simplified phasor-like notation fosters unconstrained conceptual design of single-type and hybrid multi-wheeled omnidirectional mobile robots without the distribution or type of wheels being a design constraint.