Blade vibration fatigue test device and method

The invention relates to the technical field of blade testing, in particular to a blade vibration fatigue testing device and method.The blade vibration fatigue testing device comprises a vibration table, a clamp, a strain gauge, an acceleration sensor, a speed sensor and a vibration controller, the vibration table, the acceleration sensor and the speed sensor are all electrically connected with the vibration control instrument, the strain gauge is used for obtaining a stress value on a blade, the speed sensor is used for collecting a speed value of a selected point of the blade, and the acceleration sensor is installed on the vibration table and used for monitoring the acceleration of the vibration table. According to the test device and method, the stress on the blade is indirectly regulated and controlled through the speed sensor, and the accuracy of test results is improved. 本发明涉及叶片测试技术领域，尤其涉及一种叶片振动疲劳试验装置及方法，包括振动台、夹具、应变片、加速度传感器、速度传感器和振动控制仪，所述夹具设置在所述振动台上用于固定叶片，所述振动台、所述加速度传感器、所述速度传感器均与所述振动控制仪电性连接，所述应变片用于获取叶片