Research Article
Vibration Analysis for Monitoring of Ancient Tie-Rods
Table 3
Results of computation with three sets of weights for the tie-rod PT4.
| Sets of weight coefficients | Axial load [kN] | Bed stiffness [107 MN/m2] | Natural frequencies [Hz] | I | II | III | IV | V | VI |
| | 39.00 | 3.50 | 16.03 | 32.91 | 51.37 | 72.03 | 95.32 | 121.53 | | 38.60 | 4.50 | 16.04 | 32.95 | 51.48 | 72.25 | 95.69 | 122.13 | optimal values | 38.70 | 3.75 | 16.00 | 32.85 | 51.31 | 71.97 | 95.28 | 121.55 | , encastré BCs | 32.20 | ∞ | 15.68 | 32.47 | 51.33 | 72.97 | 97.91 | 126.50 | Experimentally defined frequencies | 16.00 | 33.50 | 51.30 | 71.80 | 95.00 | 121.80 |
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