A Comparison of Vibroacoustic Response of Isotropic Plate with Attached Discrete Patches and Point Masses Having Different Thickness Variation with Different Taper Ratios

Table 6

Comparison of natural frequency variation of plate with attached four point masses with different taper ratio ().

Case	Mode	Natural frequency
		= 0	= 0.3	= 0.6	= 0.9
I	I	83.558	83.096	81.579	71.519
	II	174.55	169.98	161.80	139.18
	III	224.63	219.30	196.24	152.52
	IV	281.54	272.39	267.29	255.22
II	I	83.558	82.27	80.301	72.754
	II	174.55	170.66	167.22	159.54
	III	224.63	217.61	200.72	165.97
	IV	281.54	274.27	270.98	262.24
III	I	83.558	83.455	82.42	79.912
	II	174.55	171.38	170.42	150.89
	III	224.63	219.32	205.04	194.90
	IV	281.54	272.21	261.36	254.90
IV	I	83.558	83.091	82.913	81.649
	II	174.55	167.05	162.18	158.97
	III	224.63	218.05	204.16	185.41
	IV	281.54	276.36	268.62	259.12