基于列车-桥梁耦合振动模型的高温超导磁浮车辆悬挂参数优化  

Optimization of High-temperature Superconducting Maglev Vehicle Suspension Parameters Based on Train-Bridge Coupling Vibration

作　　者：何燕 吴兴文[1] 杨浚纲 池茂儒[2] HE Yan;WU Xingwen;YANG Jungang;CHI Maoru(School of Mechanical Engineering,Southwest Jiaotong University,610031,Chengdu,China;不详)

机构地区：[1]西南交通大学机械工程学院,成都610031 [2]西南交通大学牵引动力国家重点实验室,成都610031

出　　处：《城市轨道交通研究》2023年第6期24-32,共9页Urban Mass Transit

基　　金：中国科协青年托举工程项目(2019QNRC001);四川省自然科学基金项目(2022NSFSC0469)。

摘　　要：为提高高温超导磁浮车辆在高速运行下的品质,建立了高温超导磁浮列车-桥梁耦合振动模型,分析了桥梁刚度和车辆悬挂参数匹配对车辆系统动力学性能的影响。并通过叠加轨道不平顺谱实现桥梁预拱,分析车辆系统的动力学响应。结果表明:高温超导磁浮车辆在高速运行下,其平稳性对减振器阻尼和桥梁挠跨比的取值较敏感;桥梁挠跨比取1/7752、桥梁挠度取4.1 mm、桥梁预拱量取4 mm时能抵消车辆高速运行过程中桥梁下挠带来的线路不平顺,使车辆动力学性能达到最优。In order to improve the quality of HTS(high-temperature superconducting)maglev vehicle under high-speed operation condition,the HTS maglev train-bridge coupling vibration model is established,and the influence of bridge stiffness and vehicle suspension parameter matching on vehicle system dynamics performance is analyzed.Bridge pre-cambering is realized through superimposing spectrum of track irregularities and vehicle system dynamic response is analyzed.The results suggest that during the high-speed operation of HTS maglev vehicle,the stability is more sensitive to the damping of the vibration reduction device and the value of bridge deflection-span ratio;when the above ratio is 1/7752,bridge deflection is 4.1 mm and bridge pre-cambering is 4 mm,the line irregularity caused by bridge deflection in vehicle high-speed operation can be eliminated and the vehicle dynamics performance is optimal.

关 键 词：高温超导磁浮车辆 悬挂参数 列车-桥梁耦合振动模型 

分 类 号：U270.33[机械工程—车辆工程] U237[交通运输工程—载运工具运用工程]