Towards mechanical vibration control by dynamically adaptive impedance elements in vibration testing

The interface properties are a key factor in the vibration behaviour of technical systems, making it relevant in vibration testing. The potential of Dynamically Adaptive Impedance Elements (DAIEs) as interfaces between the test bench and the test object is derived from two distinct fields of application: the vibration reduction of lightweight structures in the aircraft cabin and the vibration analysis of handheld devices in the human-machine interaction. DAIEs are semi-active interface elements that enable the adaptation of the interface stiffness and damping during test-ing, thus facilitating the replication of multi-steady-state as well as transient behaviour in the testing environment.