Table 5

Eigenvalues for CLT200b. Namely the experimental fe,i and numerical fa,i eigenfrequencies of the ith mode and their percentage error PEi, plus the experimental modal damping factor ζe,i of the ith mode.

i fe,i (Hz) fa,i (Hz) PEi (%) ζe,i (10−2)
1 19.5 19.8 1.54 0.62
2 28.7 28.3 −1.39 0.37
3 47.6 47.8 0.42 0.62
4 74.1 73.2 −1.21 2.00
5 90.9 90.6 −0.33 1.10
6 96.2 99.3 3.22 0.72
7 103 105 1.94 0.59
8 121 124 2.48 0.61
9 132 132 0.00 0.91
10 146 147 0.68 1.00
11 155 156 0.65 0.68
12 199 198 −0.50 1.10
13 201 202 0.50 0.80
14 210 210 0.00 1.10
15 221 233 5.43 0.85
16 226 237 4.87 0.87
17 240 249 3.75 0.92
18 256 257 0.39 0.96
19 264 271* 2.66 0.95
20 267 267* 0.00 1.10
*

Eigenmode order corrected.

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