稳定轮失效对跨坐式单轨车辆运行安全性及舒适性的影响

通过Simpack建立稳定轮失效而安全轮正常工作的跨坐式单轨车辆动力学模型,根据安全性及舒适性评价指标,研究在横风作用下稳定轮失效对车辆的安全性及乘客舒适性的影响。结果表明,在横向风条件下,稳定轮失效的单轨车辆仍具有一定的安全运行能力,通过曲线时不会发生倾覆;但抗倾覆稳定性变差,在直线或曲线时乘客舒适性恶化。建议稳定轮失效后车辆应减速行驶,尽快到邻近站点疏散乘客。

Impact of Steady Wheel Failure on Operational Safety and Comfort of Straddle-type Monorail Vehicle

Through software Simpack,a dynamics model of monorail vehicle is established,in which the steady wheels are in failure but the auxiliary wheels in normal operation.Accord-ing to the evaluation index for operational safety and comfort, the impact of steady wheel failure on the operational safety and passenger comfort is studied. The result shows that under the condition of lateral wind,the vehicle with steady wheels failure still has operation capability and will not overturn in passing through curve line,but the stability against overturning will be weakened,resulting in comfort deterioration when pass-ing through straight and curve lines. It is suggested that in such circumstance the monorail vehicle must slow down and passengers be evacuated as soon as possible when arriving at the nearest station.