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Étude des temps de chauffage et de refroidissement des alliages à mémoire de forme (AMF)Heating and cooling time studies of shape memory alloys (SMA) |
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| Authors: | Nicolas Chaillet Christian Lexcellent Joël Abadie |
| Institution: | 1. Laboratoire d''automatique de Besançon, UMR CNRS 6596, 25, rue Alain Savary, 25000 Besançon, France;2. Laboratoire de mécanique appliquée R. Chaléat, UMR CNRS 6604, 24, rue de l''Épitaphe, 25000 Besançon, France |
| Abstract: | The knowledge of response times of active material is essential for their efficient use as actuators. In this paper the heating and cooling times of a shape memory alloy wire (NiTi) under a constant load are predicted by the integration of the corresponding heat equation. The comparison with a ‘fictitious’ material with the same material characteristics but without phase transformation shows that the response times are longer for the SMA (around 2.7 times for heating and 1.5 times for cooling). To cite this article: N. Chaillet et al., C. R. Mecanique 332 (2004). |
| Keywords: | Transferts thermiques AMF Transition de phase Équation de la chaleur Temps de réponse Actionneur Heat transfer SMA Phase transformation Heat equation Response time Actuator |
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