Research Article
Frequency Equations for the In-Plane Vibration of Circular Annular Disks
Table 6
Frequency parameters of in-plane vibration of an annular disk with “Free-Clamped” conditions.
| | Radius ratio () | | | | | | Reference [15] | Present study | Reference [15] | Present study | Reference [15] | Present study | Reference [15] | Present study |
| | 0.2 | 2.104 | 2.103 | 2.553 | 2.553 | 3.688 | 3.688 | 4.712 | 4.711 | | 3.303 | 3.302 | 3.948 | 3.948 | 4.859 | 4.858 | 5.894 | 5.893 |
| | 0.4 | 2.517 | 2.517 | 2.721 | 2.721 | 3.214 | 3.214 | 3.955 | 3.956 | | 3.508 | 3.508 | 4.147 | 4.147 | 4.998 | 4.998 | 5.874 | 5.873 |
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