Effect of wind speed variation on the dynamics of a high-speed train

ABSTRACT

The severe shaking due to wind speed variation in high-speed trains has a negative impact on driving safety and riding comfort. It is difficult to solve this problem by directly applying civil engineering technology because of the actual conditions. Therefore, set up a reasonable train operation plan considering the wind speed variation under strong winds is very important. In this study, a multi-body simulation model of a CRH2 high-speed rail vehicle is constructed, and the overturning coefficient is set as the safety limit, we established a crosswind model on the basis of measured wind speed curves and investigated the effect of the rate of wind speed changes, the duration of maximum wind speed and the variation of wind speed in different amplitude on the dynamics of the high-speed train. Considering the most critical wind speed variation conditions, the characteristic wind curve is obtained, which can be used as a reference to set up a reasonable train operation scheme considering the wind speed variation.

KEYWORDS:

• Wind speed variation
• ramp time
• peak wind-speed duration
• wind speed variation amplitude
• characteristic wind curve

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

The work presented here was supported by the National Natural Science Foundation of China [U1534210].