Research Article
Mooring Line Damping Estimation for a Floating Wind Turbine
Table 4
Mooring line damping estimation under different excitation period.
|
Nondimensional tension () | Nondimensional damping () | Horizontal period
| Vertical period
| 1.2 | 1.8 | 2.4 | 3 | 4 | 0.2 | 0.4 | 0.6 | 0.8 | 1.0 |
| 1.5 | 0.027 | 0.013 | 0.008 | 0.005 | 0.003 | 0.339 | 0.104 | 0.036 | 0.020 | 0.014 | 2.5 | 0.126 | 0.059 | 0.035 | 0.024 | 0.015 | 0.723 | 0.165 | 0.066 | 0.037 | 0.024 | 3.5 | 0.356 | 0.165 | 0.097 | 0.065 | 0.039 | 1.103 | 0.220 | 0.088 | 0.049 | 0.033 | 4.5 | 0.709 | 0.324 | 0.188 | 0.125 | 0.074 | 1.571 | 0.270 | 0.106 | 0.059 | 0.039 | 5.5 | 1.228 | 0.552 | 0.317 | 0.208 | 0.122 | 2.227 | 0.322 | 0.123 | 0.068 | 0.045 | 6.5 | 2.044 | 0.907 | 0.513 | 0.334 | 0.192 | 3.441 | 0.406 | 0.152 | 0.083 | 0.054 | 7.5 | 2.813 | 1.240 | 0.697 | 0.450 | 0.257 | 4.665 | 0.518 | 0.186 | 0.100 | 0.064 | 8.5 | 3.223 | 1.417 | 0.792 | 0.509 | 0.289 | 5.321 | 0.644 | 0.220 | 0.116 | 0.074 | 9.5 | 3.349 | 1.464 | 0.815 | 0.522 | 0.294 | 5.396 | 0.765 | 0.246 | 0.129 | 0.082 | 10.5 | 3.291 | 1.442 | 0.800 | 0.511 | 0.287 | 5.120 | 0.860 | 0.265 | 0.137 | 0.086 | 11.5 | 3.164 | 1.389 | 0.768 | 0.488 | 0.273 | 4.704 | 0.921 | 0.273 | 0.140 | 0.087 | 12.5 | 3.019 | 1.321 | 0.728 | 0.462 | 0.257 | 4.259 | 0.947 | 0.273 | 0.138 | 0.086 |
|
|