Numerical and Experimental Studies of a Light-Weight Auxetic Cellular Vibration Isolation Base

Table 3

Comparison of different optimal models.

	Relative density		Poisson’s ratio		Mass (kg)		Vibration level difference (dB)
	Initial parameter	Optimal results	Initial; parameter	Optimal results	Initial parameter	Optimal results	Initial parameter	Optimal results
Model 1	0.095	0.074	—		25.73	20.73	1.9	9.52
Model 2	0.095	0.069	—		25.73	19.82	1.1	4.62

Model 1 is simply supported on four edges and the weight of the machinery device is 500 kg. Model 2 is simply supported on two edges and the weight of the machinery device is 25 kg.
The initial cell angle of the optimal model is which means the cell is not a reentrant honeycomb anymore.