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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。
From the aspects of operational safety and vibration characteristics, the dynamic problems of high-speed EMUs are analyzed in detail. The analysis results show that the high speed EMU can not only provide sufficient safety for continuous high speed operation in terms of motion stability, derailment safety and structural safety and reliability through the relationship between wheel and rail, wheel alignment stiffness and damping optimization, suspension parameter design, Sexual, but also in the smooth running, ride comfort can achieve excellent level. On this basis, some measures to optimize and improve the dynamic performance of high-speed trains are put forward.