337 連成系の逆解析に用いるためのパラメトリック射影フィルタの特性について

Abstract

This paper is concerned with the inverse analysis of the fluid coupled system by coupled free vibration analysis, in combination with filtering algorithm. 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. The filtering algorithms have been known as one of the inverse analysis method. In this study, algorithm based on parametric projection filter is employed as new analytical algorithm on the inverse analysis. The coupled natural frequencies used as the observations and stochastic properties of system responses adopted the data obtained by experimental modal analysis. From identification results, adaptability and characteristics of the algorithm based on parametric projection filter are made clear through the inverse analysis of the fluid-structure interaction coupled system.