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Article Dans Une Revue Sensors and Actuators A: Physical Année : 2019

R-phase shape memory alloy helical spring based actuators: Modeling and experiments

Pierre-Antoine Gédouin
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Laurent Pino
Sylvain Calloch
Emmanuel Delaleau
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Résumé

The main goal of this paper is to propose some analytical or pseudo-analytical tools facilitating the study and modeling of SMA helical spring-based actuators. Particular attention is paid to R-phase SMA helical spring-based actuators (i.e., springs made in NiTi and concerned by R-phase transformation phenomena). First, simplified models (i.e., based on beam theory framework) of R-phase SMA helical springs taking into account detwinning and assisted two-way memory effect are proposed and validated. Then, these models are used to determine the thermo-mechanical behavior of a linear bias-spring actuator. An actuator is built and used to validate the proposed models.
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hal-02090256 , version 1 (22-10-2021)

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Pierre-Antoine Gédouin, Laurent Pino, Shabnam Arbab-Chirani, Sylvain Calloch, Emmanuel Delaleau, et al.. R-phase shape memory alloy helical spring based actuators: Modeling and experiments. Sensors and Actuators A: Physical , 2019, 289, pp.65-76. ⟨10.1016/j.sna.2019.02.024⟩. ⟨hal-02090256⟩
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