Research Article
Shaking Table Array Tests of an Ultra-High-Voltage Cup-Type Transmission Tower-Line System
Table 4
Comparison of the basic dynamic characteristics of the middle towers of the four models.
| | Model | Frequency | Damping ratio | | f1 (Hz) | f2 (Hz) | C1 (%) | C2 (%) |
| | Single-tower model | 7.202 | 7.568 | 0.92 | 2.40 | | Single tower with suspended lumped masses | 6.836 | 7.263 | 1.06 | 1.18 | | Three-tower-two-line model | 7.143 | 7.265 | 2.99 | 2.58 | | Five-tower-four-line model | 7.143 | 7.265 | 2.38 | 1.65 |
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