Von der Natur inspiriert –ein Konzept zur Entwicklung dynamischer Low-Energy-Aktuatoren

Abstract

The success of active vibration control in adaptronics decisively depends on the performance of the actuators used as multifunctional structural elements. An impedance based formulation allows the consideration of several aspects at the same time such as mechanical characteristics, control structure interaction effects, and optimization criteria. With the same impedance formulation it is possible to investigate natural structures and to transfer the findings in the technical world. The proposed design of impedance matched actuators is inspired by biological honeycomb structures. It suggests piezoelectric material systems structured in form of honeycombs. Numerical and experimental investigations show the lightweight potential (high static stiffnesses and high load capacities) and further advantages (large deflections for active vibration control).