VIBRATION EXCITER FOR THE STRESS TESTING OF A ROTOR BLADE, SYSTEM, TEST BENCH, AND ARRANGEMENT COMPRISING SUCH A VIBRATION EXCITER, AND OPERATING METHOD

摘要

The invention relates to a vibration exciter (10) for the stress testing of a rotor blade (20), in particular a rotor blade (20) of a large wind power plant, comprising a direct drive which has a motor shaft and can be connected to the rotor blade (20) via a lever mechanism (12), wherein the lever mechanism (12) has a pendulum support (14) which is connected to a coupling device (15) for transferring force to the rotor blade (20), and has a lever (13) which is rotationally fixedly connected to the motor shaft and connected in an articulated manner to the support (14).