Figure 15
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Three-bay linear grillage – BL model ((a–d) source subsystem B1, (e-f) source subsystem L1): comparison of FEM, SEA and ASEA. 
FEM (Euler-Bernoulli elements); 
FEM (Timoshenko elements); 
SEA (Euler-Bernoulli group velocity); 
SEA (Timoshenko group velocity); 
ASEA (Euler-Bernoulli group velocity); 
ASEA (Timoshenko group velocity); 
Measurement (a and b only). Results from measurements and FEM are shown with 95% confidence intervals.
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