Dynamic Modal Correlation of an Automotive Rear Subframe, with Particular Reference to the Modelling of Welded Joints

Table 4

Summary of correlation between EMA and FEA results.

Mode pair	EMA scaled freq. [Hz]	FEA scaled freq. [Hz]	Error (%)	MAC
1	0.244	0.244	0.060	0.90
2	0.254	0.252	1.055	0.89
3	0.519	0.503	3.076	0.84
4	0.623	0.612	1.677	0.96
5	0.834	0.817	2.016	0.55
6	0.849	0.833	1.934	0.76
7	1.023	1.000	2.221	0.73
8	1.037	1.019	1.709	0.73
9	1.236	1.234	0.134	0.82