32-75 METODĂ DE DETECTARE A DEFECTELOR GRINZILOR ÎNCASTRATE LA AMBELE CAPETE SUPUSE VARIAŢIILOR DE TEMPERATURĂ
METHOD TO DETECT STRUCTURAL DAMAGE
IN DOUBLE-CLAMPED BEAMS IN
CHANGING TEMPERATURE ENVIRONMENT
In this paper we present a method to detect damages in beam-like structures applicable if the temperature during structural monitoring is subject of changes. Experiments are performed on a steel beam for the intact case to attain a baseline. Afterwards, measurements are performed on a beam with known damage location. Comparison is made via Minkowski distance, and the location is found with precision, proving that the developed method is applicable for beams if temperature changes are present during monitoring.
Keywords: damage detection, natural frequency, temperature, filtering, correction, experimental method
Cuvinte cheie: detectarea defectelor, frecvenţe proprii, temperatura, filtrare, corectare, metoda experimentală