Open Access
Table 2
Changes of natural frequency with t0 (rad/s).
| t0/μ m | 0.4 | 0.5 | 0.7 | 0.8 | 1 | 2 | |
|---|---|---|---|---|---|---|---|
| Order one | ωe | 6986.3 | 6986.3 | 6986.3 | 6986.3 | 6986.3 | 6986.3 |
| ω3 | 2328.7 | 4206.9 | 5688.3 | 6081.9 | 6554 | 6956.6 | |
| ωe − ω3 | 4657.6 | 2279.4 | 1298 | 904.4 | 432.3 | 29.7 | |
| Order two | ωe | 34931.3 | 34931.3 | 34931.3 | 34931.3 | 34931.3 | 34931.3 |
| ω3 | 31041.3 | 33379.2 | 34532.5 | 34698 | 34835.9 | 34925.3 | |
| ωe − ω3 | 3890 | 1552.1 | 398.8 | 233.3 | 95.4 | 6 | |
| Order three | ωe | 81506.3 | 81506.3 | 81506.3 | 81506.3 | 81506.3 | 81506.3 |
| ω3 | 79937.4 | 80857.2 | 81336.5 | 81406.7 | 81465.5 | 81503.8 | |
| ωe − ω3 | 1568.9 | 649.1 | 169.8 | 99.6 | 40.8 | 2.5 | |
| Order four | ωe | 146711.4 | 146711.4 | 146711.4 | 146711.4 | 146711.4 | 146711.4 |
| ω3 | 145823.2 | 146348 | 146616.9 | 146656 | 146688.7 | 146710 | |
| ωe − ω3 | 888.2 | 363.4 | 94.5 | 55.4 | 22.7 | 1.4 | |
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