Nonstationary Random Vibration Performance of Train-Bridge Coupling System with Vertical Track Irregularity

Table 1

Comparison of robustness and computational efficiency.

Method	Computational time (h)	Robustness		Efficiency
		Bridge responses	Vehicle response
Monte-Carlo; (500 samples)	0.9	Fair	Poor	Fair
Monte-Carlo; (5000 samples)	9.8	Fair	Poor	Poor
Monte-Carlo; (10000 samples)	19.4	Excellent	Fair	Poor
Monte-Carlo; (20000 samples)	27.8	Excellent	Excellent	Poor
SRCTB	0.5	Excellent	Excellent	Excellent