On the Critical Speed, Supercritical Bifurcation, and Stability Problems of Certain Type of High-Speed Rail Vehicle

Table 3

Eigenvalues for gauge = 1450 mm and speed = 300 km/h.

Nat. damping	Frequency (Hz)
0.0482	0.8972
−0.0331	1.6035
−0.1919	1.8363
0.2934	2.0367
0.0471	2.0457
0.4043	2.0827
0.0571	2.5222
0.3675	3.4603
0.4269	3.9571
0.8586	9.9214
0.8541	10.140
0.6176	11.553
0.6169	11.559
0.2766	11.982
0.2727	12.057
0.4045	14.172