Research Article
On the Free Vibration Modeling of Spindle Systems: A Calibrated Dynamic Stiffness Matrix
Table 1
Spindle natural frequencies; DSM versus FEA for a nonspinning (
RPM), with simply supported boundary conditions.
| | Mode | DSM | FEA B33 element (Hz) | FEA C3D20R (Hz) | FEA C3D10M (Hz) | | 12 sections | 600 elements | 1200 elements | 16965 elements | 20122 elements | 34465 elements | 45645 elements |
| | 1 | 1392.92 | 1393.00 | 1393.00 | 1308.00 | 1308.00 | 1301.00 | 1301.00 | | 2 | 1393.24 | 1393.00 | 1393.00 | 1308.00 | 1308.00 | 1301.00 | 1301.00 | | 3 | 4071.02 | 4071.00 | 4071.00 | 3208.00 | 3212.00 | 3335.00 | 3322.00 | | 4 | 4071.34 | 4071.00 | 4071.00 | 3210.00 | 3212.00 | 3335.00 | 3324.00 | | 5 | 5668.14 | 5669.00 | 5669.00 | 4339.00 | 4311.00 | 4322.00 | 4291.00 | | 6 | 5668.46 | 5669.00 | 5669.00 | 4341.00 | 4316.00 | 4323.00 | 4292.00 |
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