Test of Vertical Curve Overlapping Plane Curve for Dedicated Passenger Traffic Railway Line

客运专线 竖曲线与平面曲线 重叠的试验验证

The South North intra industry trade can be influenced by vertical product differences the overlapping of demand biases trade distortion foreign direct investment dual economic structure scale economy and the integration of regional economy etc.

垂直产品差异、需求偏好 重叠、贸易扭曲、外国直接投资、二元经济结构、规模经济及区域经济一体化等均可影响南北之间的产业内贸易。

The design model is that the main flat spring is in a vertical position then the front stress and deflection of overlapping flat spring reach the maximal value which is in dangerous state .

认为 叠板弹簧以 叠 层原理计算较为合理，设计模型为主片板处于 直板状态，此时 叠板弹簧受力产生的正应力及挠度最大，为危险状态。