FIELD: machine building.
SUBSTANCE: present invention proposes a vibration excitation system and a device for vibration testing of an aircraft engine rotor related to aircraft engines. Vibration excitation system comprises mounting ring, fasteners, holders, guide rails and nozzle assemblies. Mounting ring is circular; one end of each fastener is rigidly attached to the mounting ring; holders are slidably mounted on other ends of corresponding fasteners, wherein the plurality of holders are arranged around the circumference of the mounting ring; each guide rail connects two adjacent holders, wherein the connection positions of the guide rail and holders are adjustable; and injector units are installed on holders. In the vibration excitation system, the radius of the spraying area covered by the nozzle assemblies is adjusted by adjusting the position of the holders on the fasteners to adapt to the test requirements of different aircraft engines.
EFFECT: increased versatility of the test system.
10 cl, 5 dwg
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