Research Article
An Improved Finite Element Model Updating Method Based on the Singular Values of Frequency Response Functions
Table 7
Comparison of updating results after adding noise.
| | Parameter | SNR (50 dB) | SNR (30 dB) | SNR (20 dB) | SNR (10 dB) | SNR (5 dB) | | Updated value | Updated error (%) | Updated value | Updated error (%) | Updated value | Updated error (%) | Updated value | Updated error (%) | Updated value | Updated error (%) |
| | 1.490 | 0.675 | 1.488 | 0.809 | 1.480 | 1.328 | 1.527 | 1.825 | 1.547 | 3.151 | | 0.995 | 0.465 | 0.999 | 0.058 | 0.981 | 1.867 | 0.965 | 3.514 | 0.962 | 3.839 | | 1.995 | 0.236 | 2.017 | 0.843 | 1.974 | 1.295 | 1.897 | 5.128 | 2.125 | 6.244 |
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