Position Optimization of Passive Patch Based on Mode Contribution Factor for Vibration Attenuation of Asymmetric 1D Structure

Table 1

The physical properties and shape of each layer.

	Constrained	Viscoelastic layer	Beam	Unit
Material	Aluminium	Adhesive	Steel
Modulus of elasticity				MPa
Density
Poisson Ratio
Loss factor
Thickness				mm
Length				mm