Origami-inspired reprogrammable microactuator system.

ABSTRACT: A reprogrammable microactuator system is presented, consisting of antagonistic shape memory alloy (SMA) microactuators for bidirectional folding of miniature-scale tiles following the concept of origami. Additional integrated heatable soft-magnetic pads with low ferromagnetic transition temperature allow for control of magnetic latching forces. The strongly coupled thermo-mechanical and thermo-magnetic properties of the microactuator and magnetic subsystems are taken into account in a model-based design to enable their selective control by Joule heating. A procedure for local shape setting of the SMA microactuators is presented to adjust their memory shape at either maximum or minimum bending angle and, thus, to functionalize their performance as protagonists or antagonists. A microfabrica

SUBMITTER: Gottwald V 

PROVIDER: S-EPMC12511558 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature