Frequency constants for transverse vibration of annular disks

Frequency constants for the transverse vibration of thin, annular disks are presented. All nine combinations of the boundary conditions, free, simply supported, and clamped, are included for Poisson's ratios of 0.0, 0.3, and 0.5. Many of these cases have been treated earlier in the literature but wi th occasional, significant error. Consequently, several tests of the validi ty of the present solutions are described. (C) 1999 Acoustical Society of A merica. [S0001-4966(99)01206-0].