IMT 25-2023 Bachelor- / Master Thesis: Development of a Bistable Shape Memory Folding Actuator

Organisationseinheit

Institut für Mikrostrukturtechnik (IMT)

Ihre Aufgaben

As part of the DFG KOMMMA program, the SMD group at IMT is conducting research on novel concepts of origami-inspired cooperating foldable shape memory alloy (SMA) microactuators called "Re-Programmable Micro-Matter". Thus, complex, and adaptive 3D microstructures can be folded to enable promising future applications in minimal-invasive surgery, micro-assembly, and micro-robotics.

A large folding angle is critical for high configuration complexity and reliable latching of the structure. Since the folding angle is limited in conventional bidirectional SMA actuator design, in this work a novel SMA folding actuator with a bistable mechanical folding support will be developed and investigated. First, a mechanical arrangement consisting of a SMA snapping mechanism and a SMA folding actuator will be designed for Joule heating.

Subsequently, these components will be fabricated using state-of-the-art microfabrication technology and 3D printing, and the SMA folding actuator will be shape-set. Finally, a characterization setup will be built to determine the mechanical and electrical performance of the novel actuator.

The thesis can be written in German or English.

Eintrittstermin

on appointment

Ihre Qualifikation

• Field of study: Mechanical Engineering, Material Science, Mechatronics, Electrical Engineering, or similar
• Knowledge in actuator technology, microfabrication technology, and CAD is beneficial.
• Good team spirit, capability of independent self-motivated work