Structural Health Monitoring of Aircraft Structure by Method of Electromechanical Impedance

NDT in Progress: VI International Workshop of NDT Experts 2011
Vitālijs Pavelko, Ilmārs Ozoliņš, Sergejs Kuzņecovs, Igors Pavelko

Problems of the electromechanical impedance (EMI) method for structural health monitoring of aircraft are analyzed. The piezoceramics transducer EMI changes were investigated experimentally at the different kinds of artificial damages. The 1-D partial model of constrained PZT is developed and validated by special test. The some generalized model of EMI of ‘structural element - piezoceramics transducer’ is constructed for the case when modal properties of system components are known. The example of model application for effect of crack estimation to dynamics properties and the EMI is presented and the effect of a crack in a thin sheet is estimated.

Atslēgas vārdi
Structural health monitoring, aircraft, electromechanical impedance, fatigue crack

Pavelko, V., Ozoliņš, I., Kuzņecovs, S., Pavelko, I. Structural Health Monitoring of Aircraft Structure by Method of Electromechanical Impedance. No: NDT in Progress: VI International Workshop of NDT Experts, Čehija, Prague, 10.-12. oktobris, 2011. Brno: Brno University of Technology, 2011, 207.-223.lpp. ISBN 978-80-214-4339-6.

Publikācijas valoda
English (en)