Description
Calculate the natural frequencies of an Alloy Steel ring with an outer diameter of 40", inner diameter of 36", and a thickness of 2 inches.
File Name
Browse to
drive letter:\Users\Public\Public
Documents\SOLIDWORKS\SOLIDWORKS
version\samples\Simulation
Examples\Verification\Frequency_14.SLDPRT and open the
file.
Number of modes
The number of modes is set to 6 in the properties of the study.
Restraints
A planar face is constrained in its normal direction.
Results
The first 3 modes are rigid body modes (0 frequency).
| Mode shape no. |
Theory (Hz) |
SOLIDWORKS Simulation (Hz)
|
| 4
|
139.87 |
140.93 |
| 5
|
139.87 |
140.94 |
| 6
|
392.15 |
395.26 |
| 7
|
392.15 |
395.35 |
| 8
|
742.79 |
749.09 |
| 9
|
742.79 |
749.22 |
Reference
Robert D. Blevins, "Formulas for Frequency and Mode Shape," 1984.