期刊
ACTUATORS
卷 8, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/act8030063
关键词
SMA-based actuators; mechanical design; flexible actuators
资金
- Exoesqueleto para Diagnostico y Asistencia en Tareas de Manipulacion [DPI2016-75346-R]
- RoboCity2030-DIH-CM, Madrid Robotics Digital Innovation Hub - Programas de Actividades I+D en la Comunidad de Madrid [S2018/NMT-4331]
- EU
New robotic applications, among others, in medical and related fields, have in recent years boosted research in the development of new actuators in the search for solutions that are lighter and more flexible than conventional actuators. Shape-Memory Alloy (SMA)-based actuators present characteristics that make them an excellent alternative in a wide variety of applications. This paper presents the design, tests (with the control description) and analysis of various configurations of actuators based on SMA wires: flexible SMA actuators, different mechanical design to multiply the displacement and different configurations for actuators with multiple SMA wires. The performance of the actuators has been analyzed using wires of different activation temperatures. The influence of the Bowden sheath of the flexible actuator has been tested, as has the thermal behavior of actuators with several wires. This work has allowed determination of the most effective configuration for the development of a flexible actuator based on SMA, from the point of view of dimensions, efficiency, and work frequency. This type of actuator has been applied in the development of soft robots and light robotic exoskeletons.
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