Table 3.

Comparisons with theoretical and numerical values of Type A and Type B.

	Type	Type A			Type B
ε		Theoretical Value	Simulation Value	Error Rate	Theoretical Value	Simulation Value	Error Rate
In-phase displacement difference (µm)	0.97%	0.000425	0.000456	7.33%	0.0410	0.0444	8.20%
	1.83%	0.000802	0.000853	6.40%	0.0773	0.0832	7.62%
Anti-phase displacement difference (µm)	0.97%	0.00184	0.00199	7.89%	0.0314	0.0340	8.17%
	1.83%	0.00347	0.00372	7.08%	0.0592	0.0636	7.35%