Jig for vibration test of rotor blade

Abstract

Provided is a jig for a vibration test of a rotor blade, for use in the vibration test for evaluating high cycle fatigue characteristics of the rotor blade for an aircraft engine, and the jig is provided with a jig body holding a dovetail portion of a fan blade and fixed onto an excitation table of a shaker, and a hydraulic jack that applies a load in a blade span direction to the fan blade to fix the fan blade to the jig body. Consequently, in the vibration test for evaluating the high cycle fatigue characteristics of the rotor blade, a test simulating an actual operation state can be carried out, the rotor blade can be efficiently excited to reach a large deformation region, and high cycle fatigue failure can occur without any increase in test cost.

Dependencies are inferred from the claim text.