Hello, my name is Kiran Yakov.

I am a Business Administration Mitarbeiter at the Institute for Microstructure Technology

at the Karlsruhe Institute for Technology.

I work in the group Smart Materials and Devices from Professor Manfred Hall.

I am investigating the damping properties of many Taurissian damper structures

that are located on a form of Gereshnitz.

Form Gereshnitz are particularly active materials with a very high energy distribution.

They have a non-conformist mechanical resistance, which gives super-elasticity and a dynamic effect.

Some super-elastic form Gereshnitz bearings give a part of the mechanical energy as heat

when stretching and return to the starting state when releasing, completely reversible.

This loss heat or energy dissipation is very large in these materials,

so the materials are especially suitable for passive damping elements.

The interaction of heat and deformation generates complex patterns in the material.

They generate temperature and stretching bands, which we make visible with an infrared camera

and digital image correlation.

Depending on the temperature of the operation, some form Gereshnitz bearings also show the one-way effect.

The material maintains its deformation after the load and returns to its original form when enough heat is applied.

This property can be used for active damping when you apply heat energy at the right moment.

The high feedback power can be used for vibration stabilization,

for example to stabilize sensors and cameras in mobile devices against hand vibrations.

This bridge element is made of thin form Gereshnitz bearing foils,

which show a one-way effect at room temperature.

The foils only have a tenth of the thickness of a hair and react very quickly to temperature changes.

The active damping is achieved by pulsing the electric heats and bearings.

By heating the form Gereshnitz bearing bridge with current,

the vibration amplitude is reduced and the one-way effect is achieved.

This is a test sample for the test of vibration isolation with the help of form Gereshnitz microstructures.

The shaker stimulates the system at different frequencies and the form Gereshnitz bearing microstructures

reduce the transfer of vibration to the mass.

I am a scientist at the Institute for Chemical Simulation at the Friedrich Alexander University in Erlangen-Nürnberg.

Here in Fürth we study the form memory materials with simulation methods.

We only need software, which we develop ourselves, computers and of course many measuring data,

which we got from the Karlsruhe Institute for Technology.

First we tried to describe the general material behavior of form memory.

That means we need the physical equation for impulse and energy

and a reaction equation for the martensitic phase conversion.

To simulate the load behavior on the computer, we have to discretize all the components,

that means we have to break down small elements so that the computer can understand them.

Here we see for example the cyclic load of the form memory legions.

As in the experiment, fine stretch and temperature bands are created.

Here in this more complicated bridge suspension we see the stretch represented in color

and it is noticeable that some areas are strongly shaped.

Here we see another complicated geometry, a spring shock element in the form of a flat spiral spring,

here for example after the load.

The double bridge element including the swinging mass is modeled on the computer

and then a load cycle is simulated with an infinite element program.

We can determine how much energy can be?

For the input material used here we see that a permanent stretch remains in the thin beams.