Rod-shaped high-stress active connection element as well as rotorcraft having such a connection element

Rod-shaped high-stress active connection element for connecting at least two structural components, comprising

• a first end with a first connection area, which is assigned to a first of the two structural components, and a second end with a second connection area, which is assigned to a second of the two structural components,
• a load-diminishing intermediate section arranged between the first and second connection areas, through which intermediate section the flux of force between the first and second connection areas extends when the connection element is loaded,
• at least one controllable extension actuator which has at least a piezo stack and is arranged parallel to the intermediate section and, when operated, extends the connection element at least in the flux of force-bearing area of the intermediate section in a controlled manner in order to actively suppress or insulate vibrations between the first and second structural component, and
• a prestressing device having a prestressing element for use in applying a mechanical compressive prestress onto the piezo stack, wherein the prestressing element is the load-diminishing intermediate section itself.