606 Spatial Filter Design for Observation Spillover Suppression : FE-Model Based Filter Design and Its Application to Vibration Testing

Abstract

This paper addresses the design method of spatial filter for suppressing modal observation spillover.To eliminate the several selected modal amplitudes from structural vibration responses, a kind of modal filter is introduced.This filtering methodology can be realized by a small number of sensors, relative to the number of dominant modes in target frequency range. The method is validated by applying it to a beam structure.