A frequencyspatial domain decomposition (FSDD) method for operational modal analysis
Following a brief review of the development of operational modal identification techniques, we describe a new method named frequencyspatial domain decomposition (FSDD), with theoretical background, formulation and algorithm. Three typical applications to civil engineering structures are presented to demonstrate the procedure and features of the method: a large-span stadium roof for finite-element model verification, a highway bridge for damage detection and a long-span cable-stayed bridge for structural health monitoring.
operational modal analysis spectrum decomposition modal filter