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: .

OrderElementMode number
12345678

4.40704.83595.52236.91417.09407.30098.08678.7015
4.40654.83535.52046.91017.08847.29088.07488.6908
4.40644.83525.52036.90987.08807.29028.07428.6901

4.40664.83555.52046.91017.08837.29088.07488.6908
4.40654.83535.52036.90997.08817.29038.07428.6902
4.40644.83525.52036.90987.08807.29028.07418.6901

4.40664.83555.52046.90997.08827.29058.07448.6903
4.40654.83545.52046.91007.08817.29038.07438.6903
4.40654.83535.52036.90997.08807.29028.07428.6902

4.40674.83565.52056.90997.08827.29058.07448.6903
4.40664.83545.52046.91007.08827.29048.07438.6903
4.40654.83535.52036.90997.08817.29038.07428.6902