Fig. 7
The effects of spacing (\({B}_{ri}={B}_{si}\) = 10, 25, 50 mm) between ring and string stiffeners on: (a) sound transmission loss and (b) noise reduction. \({D}_{ri}={D}_{si}\) = 5 mm, \({h}_{ri}={h}_{si}\) = 1 mm.
Fig. 7 | Scientific Reports
The effects of spacing (\({B}_{ri}={B}_{si}\) = 10, 25, 50 mm) between ring and string stiffeners on: (a) sound transmission loss and (b) noise reduction. \({D}_{ri}={D}_{si}\) = 5 mm, \({h}_{ri}={h}_{si}\) = 1 mm.
