High-speed rotary mechanical airflow vibration exciting simulating and vibration testing apparatus

The utility model relates to a high-speed rotating mechanical airflow excitation simulating and vibration testing device. A rotor of the high-speed rotating mechanical airflow excitation simulating and vibration testing device is supported by a supporting device and is fixed on a test bench body, and a drive device drives the rotor to rotate. A sleeve on which an air seal can be installed is arranged in an air cylinder, and the rotor is provided with an air seal; a mazy air seal is formed form the air seal on the sleeve and the air seal on the rotor. The middle part of the air cylinder is provided with an air inlet, high-pressure air is injected in the air cylinder by an air path device. A signal measuring device comprises a plurality of groups of sensors, and the air inlet of the air cylinder, an air outlet of the air cylinder, air seal teeth of a stator in the air cylinder, and a bearing support are respectively provided with a pair of sensors; the bearing support at a driving motor end is provided with one sensor, and a signal of the sensor is connected with a multi-channel data collecting instrument by a conducting wire. The utility model can realize the simulation and the recurrence of the airflow exciting phenomenon and can test and analyze the rotor vibrating change caused by different air seal structures.