Vibration Suppression of a Cantilever Plate Using Magnetically Multimode Tuned Mass Dampers

Table 2

Experimental results of the mTMD with respect to gap interval [Unit: dB].

Gap of second TMD	Gap of first TMD
	1 mm	2 mm	3 mm	4 mm	5 mm
1 mm	−31.59/−35.97	−32.96/−37.21		−33.99/−36.45	−33.67/−36.69
2 mm	−30.41/−34.42	−31.22/−34.19	−34.19/−34.17	−32.82/−34.62	−32.01/−33.71
3 mm	−28.98/−32.12	−30.41/−32.13	−32.13/−32.22	−31.32/−31.23	−30.35/−30.83
4 mm	−28.13/−30.08	−29.65/−29.62	−30.63/−29.85	−30.58/−29.51	−29.09/−28.86
5 mm	−27.52/−27.64	−28.89/−28.16	−30.05/−27.58	−29.94/−27.02	−28.31/−25.883