Table 1 Dimensions of P1,α.

From: Flexural band gaps and response attenuation of periodic piping systems enhanced with localized and distributed resonators

Pipe

Outer diameter (mm)

Thickness (mm)

Mass per unit length (kg/m)

\({P}_{1,\alpha =0.05}\)

60.33

2.77

3.93

\({P}_{1,\alpha =0.16}\)

152.40

3.40

12.44

\({P}_{1,\alpha =0.25}\)

219.80

21.56

79.94