Identifying the Mechanical Parameters of Hard Coating with Strain Dependent Characteristic by an Inverse Method

Table 10

The comparisons between calculation and experiment values of the 6th order resonant frequencies under different excitation levels for each iteration/Hz.

Excitation level		1 g	2 g	4 g	6 g
Iteration time	Experiment	1263.13	1261.88	1259.13	1258.13
0	Calculation	1261.92	1261.92	1261.92	1261.92
	Difference	0.10%	0.002%	0.16%	0.31%
1	Experiment	1263.10	1261.885	1259.10	1258.10
	Difference	0.0024%	0.0004%	0.0024%	0.004%
2	Calculation	1263.132	—	1259.133	1258.132
	Difference	0.0002%	—	0.0003%	0.0002%