高速列车中的动力学问题研究

Research on the Dynamics of High-speed Train

从运营安全性和振动特性两个方面,详细分析高速动车组的动力学问题。分析结果表明,通过轮轨关系匹配、轮对定位刚度和阻尼的优化、悬挂参数设计等,高速动车组不仅可以在运动稳定性、脱轨安全性以及结构安全可靠性方面具备持续高速运行的充足安全性,而且在运行平稳性、乘坐舒适度方面能够达到优秀的等级。在此基础上还有针对性地提出优化和提升高速列车动力学性能的对策。

This paper analyzed the dynamics of high,speed train from two aspects of operation security and vibration feature. The analysis results showed that the high speed train not only had adequate security during continued high speed operation on motion stability, derailment safety and structure reliability, but also had good grades on running stability and comfort by matching the wheel-rail relationship, optimization on stiffness and damp of wheel localization, suspension parameters design. This paper also puts forward measures on optimiz- ing and upgrading the high-speed train dynamic performance.