Structural mode filtering of a discrete-parameter system using PVDF sensors

Abstract

This study presents a modal filtering approach to separate the structural modes of a high-rise structure using shaped film sensors. A building-like model structure is constructed to realize the proposed model filtering approach. Since it is difficult to define a modal shape function for discrete-parameter structures, analytical, numerical, and experimental approaches are discussed to determine the shape of the sensor. In experiment, the first structural mode of a high-rise structure is successfully filtered and the robustness of the sensor output against parameter uncertainty is tested.