摘要
建立某高速列车单循环作用式抗蛇行减振器的简化物理参数模型,该模型基于Kasteel复杂物理参数模型,但对阻尼阀和单向阀进行了合理简化。针对抗蛇行减振器的静、动态特性,进行仿真和台架试验的对比研究。最后,对比研究了简化物理参数模型和传统Maxwell模型下的车辆蛇行运动稳定性。研究结果表明,传统Maxwell模型无法准确描述液压减振器的动态特性,而复杂物理参数模型虽计算精度高但其效率过低无法用于整车动力学仿真。简化物理参数模型能够准确地模拟抗蛇行减振器的复杂力学行为,计算效率高,适于整车动力学仿真。在高锥度工况下,传统Maxwell模型会过高估计单循环作用式抗蛇行减振器的动态阻尼,导致稳定性预测结果和简化物理参数模型有较大误差。
A simplified physical parameter model was established for a high-speed train yaw damper where hydraulic oil circulates in a single direction.It was based on the Kasteel′s complex physical parameter model,with the reasonable simplification of the damping valve and check valve.The static and dynamic characteristics of the yaw damper were then compared by means of numerical simulation and experimental tests.At last,the hunting stability of a railway vehicle was compared by using the simplified physical parameter model and traditional Maxwell model.The results show that neither the traditional Maxwell model can accurately describe the dynamic characteristics of the hydraulic damper,nor the complex physical parameter model can be used for the vehicle dynamics simulation for its low calculation efficiency despite its high accuracy.The proposed simplified physical parameter model can accurately reproduce the complex dynamic behavior of the yaw damper,with high efficiency that can be used in the vehicle dynamics simulation.Under high conicity cases,the Maxwell model will overestimate dynamic damping of the yaw damper,resulting in large errors in stability calculations compared to the simplified physical parameter model.
作者
黄彩虹
曾京
宋春元
HUANG Caihong;ZENG Jing;SONG Chunyuan(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China;CRRC Changchun Railway Vehicle Co.,Ltd.,Changchun 130062,China)
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2021年第7期47-56,共10页
Journal of the China Railway Society
基金
国家自然科学基金(51905454)
牵引动力国家重点实验室自主课题(2019TPL_T22)
国家重点研发计划(2018YFB1201702)。