In order to make statements about the durability of a product, it is often necessary to apply a defined force to the test specimen. The static pre-load as well as the dynamic stress play an important role. By means of a special control of the shaker, we are able to carry out force-controlled tests.
Both the static preload and the dynamic force application can be adjusted independently of each other. This makes it possible to perform tests on the shaker that would otherwise require servo hydraulics. The advantage lies in the higher frequencies that can be run here, which significantly shortens testing times.