| Mode | Damped flexible cross-tie |
Rigid cross-tie | ( kN/m, kN·s/m) |
(, ) | (Hz) | (%) | Mode shape | (Hz) | (%) | Mode shape | Ana. | FEA | Ana. | FEA |
| 1 | 1.53 | 1.53 | 1.49 | 1.49 | GM, in-phase | 1.65 | 0.58 | GM, in-phase | 2 | 2.11 | 2.11 | 2.88 | 2.89 | GM, out-of-phase | 2.55 | 0.44 | GM, out-of-phase | 3 | 2.97 | 2.97 | 1.42 | 1.42 | LM, cable 1 | 3.49 | 0.35 | GM, in-phase | 4 | 4.04 | 4.03 | 1.48 | 1.48 | LM, cable 2 | 4.37 | 0.17 | LM, cable 1 | 5 | 4.37 | 4.37 | 0.17 | 0.17 | LM, cable 1 | 5.00 | 0.23 | GM, out-of-phase | 6 | 5.85 | 5.85 | 0.66 | 0.66 | LM, cable 1 | 5.97 | 0.26 | GM, out-of-phase | 7 | 5.98 | 5.97 | 0.30 | 0.30 | LM, cable 2 | 6.43 | 0.14 | GM, out-of-phase | 8 | 7.30 | 7.29 | 0.51 | 0.51 | LM, cable 1 | 7.54 | 0.14 | GM, in-phase | 9 | 8.00 | 7.99 | 0.94 | 0.94 | LM, cable 2 | 8.74 | 0.08 | LM, cable 1 | 10 | 8.74 | 8.72 | 0.08 | 0.08 | LM, cable 1 | 9.05 | 0.14 | GM, out-of-phase |
|
|