Open Access
Table 4
Changes of natural frequency with d (rad/s).
| d/µm | 30 | 40 | 50 | 80 | 100 | 150 | |
|---|---|---|---|---|---|---|---|
| Order one | ωe | 4191.8 | 5589 | 6986.3 | 11178 | 13972.5 | 20958.8 |
| ω3 | 954.1 | 1863 | 4206.9 | 9182.3 | 12418.9 | 20157.8 | |
| ωe − ω3 | 3237.7 | 3726 | 2279.4 | 1995.7 | 1553.6 | 801 | |
| Order two | ωe | 20958.8 | 27945 | 34931.3 | 55890.1 | 69862.6 | 104793.9 |
| ω3 | 16370.1 | 25477.4 | 33379.2 | 55291.8 | 69480.5 | 104624.3 | |
| ωe − ω3 | 4588.7 | 2467.6 | 1552.1 | 598.3 | 382.1 | 169.6 | |
| Order three | ωe | 48903.8 | 65205.1 | 81506.3 | 130410.1 | 163012.7 | 244519 |
| ω3 | 47146.6 | 64197.5 | 80857.2 | 130155.2 | 162849.4 | 244446.4 | |
| ωe − ω3 | 1757.2 | 1007.6 | 649.1 | 254.9 | 163.3 | 72.6 | |
| Order four | ωe | 88026.8 | 117369.1 | 146711.4 | 234738.2 | 293422.8 | 440134.2 |
| ω3 | 87014.4 | 116800.9 | 146348 | 234596.4 | 293332 | 440093.9 | |
| ωe − ω3 | 1012.4 | 568.2 | 363.4 | 141.8 | 90.8 | 40.3 | |
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