Fig. 10
The effects of different materials (steel, aluminum, elastomer) of ring and string stiffeners on: (a) sound transmission loss and (b) noise reduction. \({h}_{ri}={h}_{si}\) = 1 mm, \({B}_{ri}={B}_{si}\) = 50 mm, \({D}_{ri}={D}_{si}\) = 5 mm.
Fig. 10 | Scientific Reports
