22-2019-IMT PhD Position: Smart Active Micro Damping for Portable Applications

Karlsruhe Institute of Technology (KIT)

Karlsruhe, Germany

Work group:

Institute of Microstructure Technology (IMT)

Area of research:

PHD Thesis

Job description:

The drive towards miniaturization and increased functionalities demands for damping solutions compatible to micro technology. At small scale, shape memory alloys (SMAs) are highly promising to absorb vibrational and/or impact energy due to their non-linear stress-strain response and large hysteresis. The dynamic performance of SMA micro damper devices can be adjusted by the di-mensions and surface-to-volume ratio of the active components. Applications are in particular in the field of portable devices, e.g., optical image stabilization in mobile phone cameras to counteract the shake of a human hand.

This interdisciplinary work focuses on damping on a miniature scale covering different fields of ma-terials science, mechanical and electrical engineering. SMA damper devices for 3D vibration control need to be designed and the criteria to harness their maximal damping capacity need to be elabo-rated. For micro fabrication, the IMT operates a state-of-the-art clean room facility. In addition, ad-vanced simulation tools and measurement equipment are available for structural, thermal and me-chanical characterization. The PhD thesis includes the following tasks:

• Characterization of material properties (structure, mechanical, thermal, magnetic)

• Modelling, design and simulation (FEM multiphysics, lumped element modelling)

• Rapid prototyping (optical lithography, 3D printing, laser technology)

• Development of control strategies

• Characterization of demonstrator variants (thermo-mechanical, electrical properties)

• Simulation-based design optimization

We are looking for ambitious, creative and self-motivated individuals, who like to work within an in-terdisciplinary and international team. Your background covers one or several of the following topics: Materials science, mechanical and electrical engineering, control. Experience in CAD, FEM simulation (Comsol) and MATLAB programming are of advantage.

Contract duration

limited to 3 years

Application up to


Contact person in line-management

For further information, please contact Prof. Kohl, phone 0721 608-2798.

Please apply via recruiter’s website.

Quote Reference: 3168