Fault Detection and Localization Using Laser-Measured Surface Vibration

摘要

In this article, we present the details of the structural acoustic approach to fault monitoring, describe various 'inversion' algorithms for extracting the fault information, show the results of numerical feasibility studies, discuss the associated measurement technologies, and then present applied studies we have carried out using this methodology. These include both laboratory-based studies on simple structures and spin-off work we have done on art-laden walls at the U.S. Capitol building.