In-Plane Vibration Analysis of Annular Plates with Arbitrary Boundary Conditions

Table 9

Frequency parameters, Ω=𝜔𝑏(𝜌(1−𝑣²)/𝐸)^1/2, for SS1-SS1 annular plates (𝑎/𝑏=0.4) with different cutout ratios.

K (N/m^2)	Circumferential wave number 𝑛
	0	1	2	3	4
10^0	3.1895	1.4782	1.7312	2.2297	2.8384
	(3.1962)^a	(1.4788)	(1.7324)	(2.2319)	(2.8424)
10^4	3.1895	1.4782	1.7312	2.2298	2.8384
10^8	3.1895	1.8551	2.0465	2.4938	3.0716
10^12	3.1895	3.4290	4.0217	4.7051	5.2852

aResults in parentheses are calculated using ABAQUS.