A Novel Optimal Selection Algorithm for Agricultural Trade Export in Blockchain-Enabled Internet of Things

Table 4

Iterative correction model theoretical frequency and measured frequency comparison.

Vibration mode	Measured frequency	Finite element theory frequency (Hz)				Error (%)
		Initial FEM	After 1 iteration	After 2 iterations	After 3 iterations
Vertical 1st order	5.87	4.98	5.13	5.58	5.79	1.4
Vertical 2nd order	12.96	12.64	12.86	12.93	12.90	0.46
Reverse 1	8.31	7.89	7.91	8.12	8.43	1.44
Reverse 2	5.64	14.34	14.60	15.67	15.61	0.19