铁道标准设计2025，Vol.69Issue(5)：209-215,7.DOI:10.13238/j.issn.1004-2954.202308020001
强侧风作用下构架式中低速磁浮车辆横向动力学分析
Analysis of Lateral Dynamics of Frame-Type Low-to-Medium-Speed Maglev Vehicle Under Strong Crosswinds
摘要
Abstract
Using a frame-type low-to-medium-speed maglev vehicle as the research object,this study analyzed the lateral dynamics of the vehicle in aerodynamic environments under different levels of strong crosswinds.Based on a force analysis of the vehicle body and running gear of the frame-type low-to-medium-speed maglev vehicle,a complete vehicle dynamic model was established.Building on the existing wheel-rail standards,lateral dynamics indicators were developed to assess whether the frame-type low-to-medium-speed maglev vehicle could successfully pass through aerodynamic environments under different levels of strong crosswinds considering operation stability and safety.The simulation results showed that when the vehicle operated in aerodynamic environments with winds of force 7,8,or even 9,the peak acceleration at the lateral stability measurement points did not reach or exceed 8 m/s2,indicating no occurrence of lateral instability in the running gear.Both the lateral and vertical stability indicators remained below 2.5,consistently at an excellent level.The lateral force on the first suspension frame did not exceed 15.4 kN,while the lateral forces on the second and third suspension frames stayed below 16 kN.The fluctuations of suspension gap remained within 4mm,and the guidance gap fluctuations stayed within 10 mm.All lateral dynamics indicators of the vehicle were within the standard limits,indicating that the frame-type low-to-medium-speed maglev vehicle could successfully,stably,and safely pass through different levels of strong crosswinds.关键词
中低速磁浮/走行机构/横向动力学/强侧风/数值仿真/动力学指标Key words
low-to-medium-speed maglev/running gear/lateral dynamics/strong crosswind/numerical simulation/dynamics indicator分类
交通工程引用本文复制引用
左飞飞,张敏,林远扬,马卫华,罗世辉,王爱彬..强侧风作用下构架式中低速磁浮车辆横向动力学分析[J].铁道标准设计,2025,69(5):209-215,7.基金项目
国家自然科学基金项目(52102442) （52102442）
中央高校基本科研业务费专项资金资助项目(2682022CX060,2682023GF002) （2682022CX060,2682023GF002）
