Free Vibration Analysis for Shells of Revolution Using an Exact Dynamic Stiffness Method

Table 5

Natural frequencies (Hz) of a cooling tower shell.

		Present	Deb Nath [26]
0	1	6.2303	6.2329
	2	7.7486	7.7521
	3	11.417	11.429
1	1	3.2883	3.2897
	2	6.7905	6.7933
	3	10.518	10.523
2	1	1.7667	1.7664
	2	3.6883	3.6893
	3	6.9529	6.9556