不同轨道型式的地铁车辆轨道耦合振动特性研究
贾小平1,2胡定祥1李大地2李家栋3杨陈1朱程1
Research on Metro Vehicle-Track Coupling Vibration Characteristics of Different Track Types
JIA XiaopingHU DingxiangLI DadiLI JiadongYANG ChenZHU Cheng
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作者信息:1.中车南京浦镇车辆有限公司， 210031， 南京；
2.西南交通大学牵引动力国家重点实验室， 610031， 成都；
3.南京地铁运营有限责任公司车辆分公司， 210012， 南京
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Affiliation:CRRC Nanjing Puzhen Co., Ltd., 210031, Nanjing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2022.07.012
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中图分类号/CLCN:U211.5
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栏目/Col:研究报告
摘要:
对某地铁线路的轨道型式类型及占比进行统计，对不同轨道型式下的车辆轨道振动进行测试，分析了轮轨系统的动态响应，深入研究了普通道床+ZX-2扣件、普通道床+剪切扣件、普通道床+压缩扣件等典型轨道型式下轮轨耦合振动特性，以及车轮多边形轮周对轮轨振动特性的影响。结果表明，不同扣件刚度对轮轨振动特性的影响明显。其中：采用普通道床+ZX-2扣件时，轮轨间发生中低频轮轨力共振，振动主频为58 Hz，振动能量增大；采用普通道床+剪切扣件、普通道床+压缩扣件时，轮轨未发生共振，振动能量分配均衡；多边形车轮转频倍频与轮轨系统的固有频率发生了共振，振动能量显著增大。
Abstracts:
Track types and proportion of certain metro line are counted, and vehicle-track vibration tests of different track types are carried out. Dynamic response of wheel-rail system is analyzed. Wheel-rail coupling vibration characteristics of typical track types including common track bed+ZX-2 fastener, common track bed+shear fastener, common track bed + compression fastener are studied in-depth, as well as influence of polygonal wheel on wheel-rail vibration characteristics. Results show that different fastener stiffness has evident influence on wheel-rail vibration characteristics. Among them, P2 force resonance occurs between wheel and rail when the common track bed+ZX-2 fastener is adopted, and the main frequency of vibration is 58 Hz, with vibration energy amplifying. When the common track bed+shear fastener or+compression fastener is adopted, wheel-rail resonance does not occur, and the vibration energy distribution is balanced. Polygonal wheel frequency doubling frequency resonates with the wheel-rail system natural frequency, and the vibration energy increases significantly.
引文 / Ref:
贾小平，胡定祥，李大地，等.不同轨道型式的地铁车辆轨道耦合振动特性研究[J].城市轨道交通研究，2022，25（7）：56.
JIA Xiaoping，HU Dingxiang，LI Dadi，et al.Research on Metro Vehicle-Track Coupling Vibration Characteristics of Different Track Types[J].Urban mass transit，2022，25（7）：56.
JIA Xiaoping，HU Dingxiang，LI Dadi，et al.Research on Metro Vehicle-Track Coupling Vibration Characteristics of Different Track Types[J].Urban mass transit，2022，25（7）：56.
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