Isomap-Based Three-Dimensional Operational Modal Analysis

Table 5

Comparison of modal ratios with different assembly methods.

Order of real modal ratios	Order of identified modal ratios	Identified by the LSMS-based Isomap	Identified by DMA-based Isomap
1	2	0.0204	0.0286
2	1	0.0187	0.0196
3	3	0.0270	0.0210
4	4	0.0216	0.0214
5	6	—	0.0678
7	5	0.0282	0.0277