Damage detection using successive parameter subset selections and multiple modal residuals
Successive use of the homogeneous modal residuals in damage detection. Symmetries, large changes in residuals and multiple damage levels are considered. 3D frame structure with a loose joint is used to demonstrate the concept. Frequency residuals and symmetries determine the candidate damage regions. Mode shape residuals assist selection of one location from the candidate regions.
damage detection parameter subset selection modal residuals symmetry subspace angles