SMA Wires Bundles – Mechanical and Electrical Concepts

Konferenz: ACTUATOR 2018 - 16th International Conference on New Actuators
25.06.2018 - 27.06.2018 in Bremen, Deutschland

Tagungsband: ACTUATOR 2018

Seiten: 4Sprache: EnglischTyp: PDF

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Britz, R.; Welsch, F.; Kirsch, S.-M. (Universität des Saarlandes, Saarbrücken, Germany)
Simone, F.; Schmidt, M.; Motzki, P.; Seelecke, S. (Universität des Saarlandes, Saarbrücken, Germany & Zentrum für Mechatronik und Automatisierungstechnik gGmbH, Saarbrücken, Germany)

Commercially available SMA actuated devices usually integrate only a single wire, which dimensions are determined by the force necessary to achieve a desired actuation. Usually, if higher forces are requested, a wire with a bigger diameter is chosen since bigger diameters correspond to higher forces, but, on the other hand, also to a smaller surface-per-volume ratio, which limits system dynamics. The use of bundle of small diameter SMA wires enables to achieve high forces depending on the number of wires in the bundle ensuring a high surfaceper- volume ratio and thus a high bundle reactivity.