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
何燕1吴兴文1杨浚纲2池茂儒2
Optimization of High-temperature Superconducting Maglev Vehicle Suspension Parameters Based on Train Bridge Coupling Vibration
HE YanWU XingwenYANG JungangCHI Maoru
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作者信息:1.西南交通大学机械工程学院， 610031， 成都
2.西南交通大学牵引动力国家重点实验室， 610031， 成都
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Affiliation:School of Mechanical Engineering, Southwest Jiaotong University, 610031, Chengdu, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.06.005
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中图分类号/CLCN:U270.33∶U237
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栏目/Col:学术专论
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1/7 752、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。
Abstracts:
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 1/7 752, 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.
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