Research Article
Free In-Plane Vibration Analysis of Circular, Annular, and Sector Plates Using Isogeometric Approach
Table 1
Convergence of frequency parameters
of plates with CCCC boundaries and inner-to-outer radii ratios:
.
| Order | Element | Mode number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| | | 4.4070 | 4.8359 | 5.5223 | 6.9141 | 7.0940 | 7.3009 | 8.0867 | 8.7015 | | 4.4065 | 4.8353 | 5.5204 | 6.9101 | 7.0884 | 7.2908 | 8.0748 | 8.6908 | | 4.4064 | 4.8352 | 5.5203 | 6.9098 | 7.0880 | 7.2902 | 8.0742 | 8.6901 |
| | | 4.4066 | 4.8355 | 5.5204 | 6.9101 | 7.0883 | 7.2908 | 8.0748 | 8.6908 | | 4.4065 | 4.8353 | 5.5203 | 6.9099 | 7.0881 | 7.2903 | 8.0742 | 8.6902 | | 4.4064 | 4.8352 | 5.5203 | 6.9098 | 7.0880 | 7.2902 | 8.0741 | 8.6901 |
| | | 4.4066 | 4.8355 | 5.5204 | 6.9099 | 7.0882 | 7.2905 | 8.0744 | 8.6903 | | 4.4065 | 4.8354 | 5.5204 | 6.9100 | 7.0881 | 7.2903 | 8.0743 | 8.6903 | | 4.4065 | 4.8353 | 5.5203 | 6.9099 | 7.0880 | 7.2902 | 8.0742 | 8.6902 |
| | | 4.4067 | 4.8356 | 5.5205 | 6.9099 | 7.0882 | 7.2905 | 8.0744 | 8.6903 | | 4.4066 | 4.8354 | 5.5204 | 6.9100 | 7.0882 | 7.2904 | 8.0743 | 8.6903 | | 4.4065 | 4.8353 | 5.5203 | 6.9099 | 7.0881 | 7.2903 | 8.0742 | 8.6902 |
|
|