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Mathematical Problems in Engineering
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Mathematical Problems in Engineering
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2014
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Article
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Tab 1
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Research Article
Damage Identification of Bridge Based on Modal Flexibility and Neural Network Improved by Particle Swarm Optimization
Table 1
Natural frequencies for undamaged structure.
Modal order
1
2
3
4
Natural frequencies (Hz)
6.7982
26.955
59.788
104.26