Abstract
This paper is concerned with the structural damage detection of five-story frame model by free vibration analysis, in combination with algorithm based on filtering theory. The structural damage analysis is generally formulated as an inverse problem. The formulated inverse problem must be analyzed under the consideration of stochastic properties on the response of structural system. In this study, three kinds of filtering algorithm based on the extended Kalman filter, projection filter and parametric projection filter are employed as the analytical algorithm of the inverse problem. Characteristics of those three kinds of analytical algorithm are discussed from results of the inverse analysis on the five-story frame model.
