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

Table 8

The comparisons between calculation and experiment values of the 4th and 6th orders natural frequencies for each iteration/Hz.

Iteration time	The 4th order			The 6th order
	Experiment	Calculation	Difference	Experiment	Calculation	Difference
0	708.13	688.79	2.82%	1263.13	1216.62	3.72%
1	708.13	707.22	0.13%	1263.13	1249.16	1.11%
2	708.13	714.45	0.89%	1263.13	1261.92	0.10%