Decoupling Optimization Design of Under-Chassis Equipment Suspension System in High-Speed Trains

Table 2

Modal frequency and energy distribution of UCE in the original scheme.

Order		1	2	3	4	5	6
Modal frequency (Hz)		5.82	8.66	12.75	19.97	23.58	26.89
Energy distribution (%)	x	0.2	2.0	82.8	0.1	14.4	0.6
	y	98.5	0.6	0.5	0.0	0.2	0.1
	z	0.6	81.1	2.8	0.8	0.0	4.7
	rx	0.2	2.3	0.3	10.1	7.7	79.3
	ry	0.0	13.9	3.2	55.6	22.1	15.2
	rz	0.4	0.1	10.3	33.4	55.5	0.2