The Use of Localized Sensor Networks for Damage Detection: A Likelihood Ratio Test Control Chart

Abstract

This study presents the implementation of an output only damage detection method on an experimental structure by applying a mulitvariate change point analysis approach. The multivariate method, the Normalized Likelihood Ratio Test, is utilized to create control charts in order to localize damage on a small scale steel girder. Data from a dense sensor network is utilized to correlate a location on the frame with damage. 1. INTRODUCTION