Detección de Fallas Utilizando Respuestas Dinámicas

Abstract

Health monitoring based on structural models considers the measurement of the discrepancies between predicted and measured dynamic behaviours. A first necessary step is the «expansion» of the measured dynamic shapes (mode shapes or FRFs) in order to compare them with their analytical counterparts. In this article a technique already used with mode shapes is extended to use FRF as inputs. Experimental testing is shown for a 3D beam frame.