Method and test device for simultaneously testing two rotor blades and/or two rotor blade segments of wind turbine

The invention relates to a test device and a method for simultaneously testing two rotor blades and/or two rotor blade segments of a wind turbine, the invention relates to a method for testing a rotor blade and/or a rotor blade segment of a wind turbine and to the use of a testing device for testing a rotor blade and/or a rotor blade segment of a wind turbine and/or for simultaneously testing two rotor blades and/or two rotor blade segments of a wind turbine. The testing device comprises: a first adapter element for fixing a first rotor blade or rotor blade segment thereon; a second adapter element for fixing a second rotor blade or rotor blade segment thereto; a support structure on which the first and second adapter elements are rotatably fixed about a common axis of rotation; and an excitation device which is designed to apply a static and/or periodic load to the first and/or second rotor blade or rotor blade segment, the first adapter element and the second adapter element being connected to each other. 本