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Effect of Blades Settings on Rotor Dynamics

Mitura A., Gawryluk J., Teter A., Warmiński J.

Machine Dynamics Research

2018

Vol. 42, No. 2

73--79

In the paper, experimental and numerical studies of dynamics of a rotor composed of a rigid hub and three laminated blades with an embedded active piezoelectric actuators are discussed. The rotor is excited by periodic torque imposed to the hub. The dynamic response for various preset angles of the blades has been tested experimentally on the basis of signals recorded from strain gauges. The experimental results have been compared with a numerical ﬁnite element model developed in Abaqus software. The eigenvalue problem has been solved, and the natural frequencies and corresponding modes have been compared with experimental tests.