Experimental study on active damping of compressor blade forced vibrations using piezoelements

International Conference of Young Scientists and Students "Topical Problems of Mechanical Engineering 2018"

Bortnikov, A.D.^1

Central Institute of Aviation Motors (CIAM), 2 Aviamotornaya Street, Moscow

111116, Russia^1

关键词: Active damping;    Compressor blades;    Experimental investigations;    Feed-back based;    Forced vibration;    Piezo elements;    Resonant stress;    Vibration-damping;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/489/1/012035/pdf
DOI  :  10.1088/1757-899X/489/1/012035

来源: IOP

【 摘 要 】

This paper is dedicated to active damping of gas turbine engine blades forced vibrations using the capabilities of piezoelements. Experimental investigations are carried out with a non-rotating compressor blade, rigidly clamped on a shaker. Vibration damping was carried out by using of feedback based on a piezoelement pair fixed on the blade surface and used as a sensor and an actuator. A significant decrease of resonant stresses in the blade is shown.