摘要
对于12号无砟道岔及配套交叉渡线而言,需要研究列车与道岔间的动态相互作用问题。分别建立了车辆模型和道岔模型,其中车辆模型采用主要考虑车体、转向架和轮对三部分结构的单列全车模型,道岔模型包括转辙器、连接部分、12号辙叉、6号锐角辙叉及6号钝角辙叉等基本结构,充分考虑各细部结构对其振动的影响,以尽可能与实际情况相符;然后用列车动力学和道岔动力学理论,建立可考虑交叉渡线道岔钢轨型面变化的列车-道岔耦合动力学计算模型。研究结果表明:当CRH2动车组以时速50 km侧向通过客运专线用60 kg/m钢轨12号交叉渡线道岔时,能满足旅客的安全性和舒适性要求。
For No. 12 ballastless turnout and supporting scissors crossing, it is needed to study the dynamic interactions between the train and the turnout. This paper establishes vehicle model and turnout model, and the train model uses single whole vehicle model, focusing on car the body, the bogie and the wheel. While the turnout model includes switch, connecting parts, No. 12 frog, No. 6 acute frog, No. 6 obtuse frog and other basic structures, fully taking account of the influence of the individual structures on the vibration, being as far as possible consistent with actual situations. Train dynamics and turnout dynamics theories are then employed to establish calculation model for train-turnout coupling dynamics, addressing crossover turnout rail profile changes. The results show that CRH2 EMU running at 50km/h through side track with 60kg/m rail No. 12 scissors crossing turnout on passenger dedicated line can meet requirements for passenger safety and comfort.
出处
《铁道标准设计》
北大核心
2015年第1期6-10,共5页
Railway Standard Design
基金
国家自然科学基金(51078320)
