新型悬浮架结构中低速磁浮列车提速运行稳定性研究*
蔡文锋1徐银光1赵春发2李艳1
perational Stability of Accelerated Medium and Low Speed Maglev Train Equipped with New Bogie Suspension Structure
CAI WenfengXU YinguangZHAO ChunfaLI Yan
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作者信息:1.中铁二院工程集团有限责任公司，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:China Railway Eryuan Engineering Group Co., Ltd., 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.2020.09.008
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中图分类号/CLCN:U237；U270.1+1
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栏目/Col:研究报告
摘要:
以新型空气弹簧中置式悬浮架结构中低速磁浮列车为研究对象，建立了考虑悬浮控制系统的车辆动力学模型。对列车在直线段快速运行时的动力学特性进行了分析研究，目的在于研究中低速磁浮车辆提速运行情况下的安全性和稳定性。研究结果表明：新型磁浮列车以最高160 km/h速度直向运行时，车辆垂向平稳性仍属优秀级，但横向平稳性指标大于2.5。有必要对二系横向悬挂参数进行优化。将新型磁浮车辆的空气弹簧横向刚度减小到150 kN/m以后，所有行车速度工况下车辆的垂向和横向平稳性指标均小于2.5，车辆运行平稳性指标属优秀级。
Abstracts:
A medium and low speed maglev train equipped with new bogie suspension structure of middlemounted air spring frame is taken as the research object, and a vehicle dynamics model considering suspension control system is established. Through an analysis of the traindynamic characteristics during operation at straight line sections, the safety and stability of medium and low speed maglev vehicle is acceleration are studied. The research results show that when the new maglev train running in straight direction at the maximum speed of 160 km/h, the vertical stability of the vehicle is still at excellent grade, whereas the lateral stability index is larger than 2.5. So it is necessary to optimize the lateral suspension parameters of the secondary suspension system. After the air spring frame lateral stiffness of the new maglev vehicle is reduced to 150 kN/m, the vertical and lateral stability indexes of the vehicle at all operational speed are all smaller than 2.5, and the operational stability of the vehicle is at excellent grade.
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