Crack Detection by Bispectral Analysis
نویسنده
چکیده
SOMMARIO La misura di vibrazioni é frequentemente adottata per individuare cricche di fatica nelle strutture. In questo lavoro é presentata una metodologia, basata sull'analisi bispettrale, al fine di rilevare la presenza di una cricca in una trave a sezione costante; la tecnica di analisi del segnale è applicata alla risposta del sistema sottoposto ad eccitazione random mediante shaker. ABSTRACT Vibration measurements are frequently used to detect fatigue cracks in structures. In this paper, a procedure based on bispectral analysis for the detection of a fatigue crack in a straight beam is presented, using the response data gathered from Gaussian white noise excitation.
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