Model Updating Method Based on Kriging Model for Structural Dynamics
Table 4
Identification error of elasticity modulus of each damage unit.
Measurement location
Method
Identification errors of damage units (%)
8
12
15
17
21
25
3-Y
K
1.594
5.125
6.225
0.504
0.098
0.946
U-K
1.315
3.812
4.334
0.490
0.099
0.622
RBF
0.487
2.339
1.750
0.577
0.006
0.234
RSM
1.064
8.371
6.323
0.229
0.342
1.064
5-Y
K
0.722
8.359
8.830
1.372
0.492
1.815
U-K
0.431
6.488
6.261
1.253
0.340
1.406
RBF
0.090
21.078
20.502
11.459
1.653
5.297
RSM
3.882
11.270
5.399
6.676
0.588
1.499
7-Y
K
0.890
7.373
0.768
6.824
0.557
0.280
U-K
0.897
3.470
0.054
2.850
0.108
0.017
RBF
3.718
6.606
1.231
8.987
0.055
0.904
RSM
4.663
1.201
0.324
2.165
0.202
0.337
9-Y
K
0.982
2.746
0.028
1.506
0.332
0.073
U-K
0.685
2.160
0.030
1.126
0.183
0.025
RBF
3.469
1.720
0.096
1.606
0.081
0.161
RSM
4.522
1.879
0.627
0.626
0.492
0.743
11-Y
K
0.554
1.918
0.021
1.276
0.435
0.304
U-K
0.552
0.916
0.031
0.327
0.087
0.132
RBF
2.088
2.970
0.275
2.269
0.093
0.277
RSM
5.810
2.018
0.578
1.424
0.625
0.862
14-Y
K
0.226
0.648
0.084
0.271
0.546
0.260
U-K
0.167
0.783
0.084
0.268
0.125
0.075
RBF
1.587
1.197
0.830
2.244
0.021
0.574
RSM
4.519
1.752
0.639
0.631
0.478
0.634
All measurement points of Y-direction
K
0.170
0.020
0.232
0.676
0.287
0.189
U-K
0.197
0.010
0.010
0.423
0.140
0.163
RBF
0.244
0.486
0.468
0.155
0.301
0.289
RSM
1.284
1.176
0.184
0.188
0.319
0.586
Note. K represents the Kriging model; U-K represents the updated Kriging model; 3-Y represents the measurement points arranged in the Y direction at the 3rd node.
