Research Article
A New Method to Calculate Additional Damping Ratio considering the Effect of Excitation Frequency
Table 1
Fitting coefficients of the polynomial for different ω values.
| ω (rad/s) | Fitting coefficients | | b 1 | b 2 | b 3 | b 4 |
| 2 | 0.23 | –0.42 | 0.30 | 0.01 | 4 | 0.34 | –0.86 | 0.80 | 0.01 | 5.39 | 0.40 | –0.89 | 0.84 | 0.04 | 8 | 1.11 | –2.39 | 1.81 | 0.04 | 10 | 1.76 | –3.70 | 2.66 | 0.07 | 12 | 1.84 | –3.99 | 3.04 | 0.08 | 14 | 1.19 | –3.13 | 3.02 | 0.02 | 16 | 0.50 | –2.00 | 2.73 | 0.00 | 18 | 0.14 | –1.28 | 2.44 | 0.01 | 20 | –0.05 | –0.86 | 2.27 | 0.03 |
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