Using Modal Projection Error to Evaluate SEREP Modal Expansion.
Tyler F. Schoenherr, Jelena Paripovic · 2020
SEREP (1) From a limited set of field degrees of freedom (f) of count a, use the m mode shapes of the finite element model as a set of basis vectors to fit to the measured data.Then use those fitted shapes to interpolate and extrapolate to the (n) dofs. 2 Modal Expansion with the System Equivalent Reduction Expansion Process (SEREP) Goals of this presentation • Expand our understanding of the SEREP expansion process • Determine if the Modal Projection Error can be used to aid the execution of the SEREP expansion