强风地区高速铁路接触线预坡度探讨

强风地区高速铁路接触网尚无成熟运营经验,相应的接触网设计方案也在探索中.经过有限元分析发现,在侧向风吹时,接触线正反定位竖直方向呈现一定高差,甚至会出现一定位器向上抬升、相邻定位器向下抬升情况,由此产生了接触线坡度,进而影响了弓网受流质量.本文针对该情况提出了预坡度新概念,将因强风产生的接触线坡度降低了1/2.经过弓网...

Study on Per-gradient of Contact Wire for High-speed Railway in Area with Strong Wind

The high-speed railway OCS in fresh gale area still not mature operation experience. The design scheme of OCS also in exploration. By finite element, we find when the cross wind come,the contact wire at push-off and pull-off will be have different height to track in vertical direction ,even one steady arm’s uplift and neighboring one steady arm’s downlift, so caused the contact wire have gradient, and affected the quality of pantograph-Catenary current collection. In this paper, we put forward a new concept that is per-gradient. The concept may reduce half gradient. By the validation of simulation of the dynamic interaction between pantograph and catenary, the quality of pantograph-Catenary current collection that used per-gradient is better than not used.