Research Article
Dynamic Characteristics of Blade with Viscoelastic Damping Block Based on Complex Eigenvalue Method
Table 9
Natural frequencies and modal damping ratios of the blade with different loss factors.
| Loss factor | First order | Second order | Third order | Natural frequency/Hz | Modal damping ratio/% | Natural frequency/Hz | Modal damping ratio/% | Natural frequency/Hz | Modal damping ratio/% |
| 0.5 | 247.34 | | 989.57 | | 1163.8 | | 0.7 | 241.87 | | 967.66 | | 1138 | | 0.9 | 236.57 | | 946.47 | | 1113.1 | | 1.1 | 231.45 | | 925.97 | | 1089 | | 1.3 | 226.49 | | 906.13 | | 1065.6 | | 1.5 | 221.68 | | 886.92 | | 1043 | |
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