Artículo
Synthesis of 1-DOF mechanisms for exact regular polygonal path generation based on non-circular gear transmissions
Autor/es | Castillo, Carlos
López Martínez, Javier García Vallejo, Daniel Blanco Claraco, José Luis |
Departamento | Universidad de Sevilla. Departamento de Ingeniería Mecánica y de Fabricación |
Fecha de publicación | 2024-08 |
Fecha de depósito | 2024-10-15 |
Publicado en |
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Resumen | Design of one-degree-of-freedom (1-DOF) mechanisms is of paramount interest. This work deals with the generation of exact regular polygonal paths by using two particular 1-DOF mechanisms. The design of two-bar and three-bar ... Design of one-degree-of-freedom (1-DOF) mechanisms is of paramount interest. This work deals with the generation of exact regular polygonal paths by using two particular 1-DOF mechanisms. The design of two-bar and three-bar mechanisms including non-circular gears is presented and evaluated. Differences in the kinematics of both mechanisms are discussed. The three-bar mechanism allows derivable velocity and acceleration curves during the whole trajectory, including the polygon vertices, a feature that cannot be achieved with the simpler two-bar mechanism. Hence, the three-bar mechanism makes it possible to generate perfect vertices using non-circular gears. To the best of the authors’ knowledge, this mechanism is the first 1-DOF mechanism with articulated links and a non-circular gear transmission that can generate exact regular polygonal paths. The proposed mechanisms can also be applied to generate two straight lines with a given angle, which is another novel contribution of this work. A prototype of the three-bar mechanism has been developed for experimental validation. © 2024 The Author(s) |
Cita | Castillo, C., López Martínez, J., García Vallejo, D. y Blanco Claraco, J.L. (2024). Synthesis of 1-DOF mechanisms for exact regular polygonal path generation based on non-circular gear transmissions. Mechanism and Machine Theory, 198, 105657. https://doi.org/10.1016/j.mechmachtheory.2024.105657. |
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