کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
732204 | 893230 | 2009 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Modeling, control and experimental validation of a novel actuator based on shape memory alloys Modeling, control and experimental validation of a novel actuator based on shape memory alloys](/preview/png/732204.png)
The paper presents the development of a mechanical actuator using a shape memory alloy with a cooling system based on the thermoelectric effect (Seebeck–Peltier effect). Such a method has the advantage of reduced weight and requires a simpler control strategy as compared to other forced cooling systems. A complete mathematical model of the actuator was derived, and an experimental prototype was implemented. Several experiments are used to validate the model and to identify all parameters. A robust and nonlinear controller, based on sliding-mode theory, was derived and implemented. Experiments were used to evaluate the actuator closed-loop performance, stability, and robustness properties. The results showed that the proposed cooling system and controller are able to improve the dynamic response of the actuator.
Journal: Mechatronics - Volume 19, Issue 7, October 2009, Pages 1169–1177