Research Article
Vibration Analysis and Models of Adjacent Structures Controlled by Magnetorheological Dampers
Table 11
Identified natural frequencies and damping ratios in the nonconnected (NC) and rigid connected (RC) configuration; white noise test PGA 0.1 g.
| Mode | Structure A (NC) | Structure B (NC) | Connected structure (RC) | Frequency (Hz) | Damping (%) | Frequency (Hz) | Damping (%) | Frequency (Hz) | Damping (%) |
| 1 | 2.70 | 2.29 | 5.25 | 0.75 | 3.18 | 2.35 | 2 | 8.15 | 1.05 | 14.43 | 0.53 | 7.26 | 2.45 | 3 | 13.18 | 0.98 | 19.66 | 0.41 | 8.63 | 1.91 | 4 | 16.85 | 1.12 | | | 13.53 | 1.11 | 5 | | | | | 15.78 | 1.19 | 6 | | | | | 19.94 | 0.69 | 7 | | | | | 23.70 | 2.52 |
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