Research Article

Free In-Plane Vibration Analysis of Circular, Annular, and Sector Plates Using Isogeometric Approach

Table 2

Comparison of frequency parameters for annular sector plates with various boundaries and inner-to-outer radii ratios: .

(°)ModeCCCCCFCFFFFFCCCF
Ref. [23]Ref. [25]PresentRef. [23]Ref. [25]PresentRef. [25]PresentRef. [25]Present

3018.15928.15008.15273.44893.47883.47744.85894.87775.31575.3112
28.83798.80858.81226.27706.21796.21845.67605.69386.85006.8399
310.108910.211610.21386.40376.44456.44415.70265.71997.45607.5122
412.764812.777512.78228.36768.31948.31896.11626.137010.229610.2655
513.262313.309013.31438.33588.44998.44787.67167.699010.789710.8673
613.255513.319513.32259.41049.42649.42648.56928.699511.520911.5250

9014.75764.75084.75163.78343.80173.79861.56331.56414.00554.0121
26.34586.32166.32334.47974.46764.46362.67852.67025.43465.3987
36.95126.85646.85826.07115.98665.98642.97952.97926.50466.4447
46.97936.89216.89376.53936.50326.49924.45134.42936.63216.5915
57.57497.55737.55886.59526.54976.55044.46274.47547.02376.9826
68.08318.09738.09836.77866.77426.77394.66684.65757.35637.3541