Open Access
Table 3
Numerically ffem and experimentally fexp determined natural frequencies [Hz], relative frequency error 
and MAC before and after the automatic model calibration: m ∈ [1, 6] for S1* and S2*.
| S1* |
Before |
After |
|||||
|---|---|---|---|---|---|---|---|
| m | f exp,m | f fem,m | e r,m | MACm | f fem,m | e r,m | MACm |
| 1 | 48.3 | 54.3 | 0.12 | 0.98 | 50.8 | 0.05 | 0.98 |
| 2 | 76.6 | 81.3 | 0.06 | 0.81 | 71.6 | 0.07 | 0.84 |
| 3 | 78.7 | 95.8 | 0.22 | 0.77 | 88.0 | 0.12 | 0.74 |
| 4 | 90.4 | 90.0 | 0.00 | 0.51 | 90.3 | 0.00 | 0.77 |
| 5 | 102.1 | 100.7 | 0.01 | 0.81 | 100.5 | 0.02 | 0.80 |
| 6 |
114.5 |
136.7 |
0.19 |
0.78 |
106.9 |
0.07 |
0.67 |
| S2* |
Before |
After |
|||||
|
m
|
f
exp,m
|
f
fem,m
|
e
r,m
|
MACm |
f
fem,m
|
e
r,m
|
MACm |
| 1 | 40.0 | 42.7 | 0.07 | 0.90 | 42.7 | 0.07 | 0.90 |
| 2 | 49.0 | 51.3 | 0.05 | 0.98 | 49.6 | 0.01 | 0.98 |
| 3 | 68.1 | 80.2 | 0.18 | 0.92 | 80.1 | 0.18 | 0.92 |
| 4 | 77.1 | 96.6 | 0.25 | 0.61 | 94.3 | 0.22 | 0.61 |
| 5 | 86.9 | 88.6 | 0.02 | 0.97 | 85.1 | 0.02 | 0.97 |
| 6 | 105.1 | 100.6 | 0.04 | 0.95 | 97.3 | 0.07 | 0.95 |
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