Finite Element Model Fractional Steps Updating Strategy for Spatial Lattice Structures Based on Generalized Regression Neural Network

Table 2

Comparison of the actual measured and rigid model results.

Modal	Measured values (Hz)	Rigid model (Hz)	(%)	MAC
1	6.62	7.86	18.81	0.77
2	8.40	9.79	16.58	0.69
3	10.1	13.18	30.50	0.51
4	13.89	16.63	19.73	—