Influence of Sandwich-Type Constrained Layer Damper Design Parameters on Damping Strength

Table 2

Geometric parameters of the reference four-layer damper design.

Metallic sheets	Viscoelastic layers	Viscoelastic properties
= 3 mm	= 3.5 mm	Density =  kg/m^3
= 3.5 mm	= 3.5 mm	Static shear modulus =  Pa
= 3 mm	= 3.5 mm	Loss angle =
= 2.5 mm	= 3.5 mm	Poisson modulus = 0.499
= 2 mm		Dynamic shear modulus =  Pa