地铁车轮多边形磨耗动态监测评价指标
陈洪轩1马盛况2沈钢1余道洪1王伟铭1范广能1
Dynamic Monitoring and Evaluation Index of Metro Wheel Polygonal Wear
CHEN Hongxuan1MA Shengkuang2SHEN Gang1YU Daohong1WANG Weiming1FAN Guangneng1
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作者信息:1.同济大学铁道与城市轨道交通研究院，201804，上海
2.中车南京浦镇车辆有限公司,210031,南京
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Affiliation:1.Institute of Rail Transit, Tongji University, 201804, Shanghai, China
2.CRRC Nanjing Puzhen Vehicle 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.2024.12.038
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中图分类号/CLCN:U270.33
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栏目/Col:研究报告
摘要:
［目的］地铁车轮的多边形磨耗会使车辆产生振动，影响车辆运行的平稳性和舒适性。现有的车轮不圆度静态检测手段需要消耗大量的人力、物力，因此需对车轮多边形磨耗的严重程度进行动态监测。［方法］建立整车刚性、轨下基础柔性动力学仿真模型；提出基于钢轨振动加速度的车轮多边形阶数特征分析方法，分析车轮多边形磨耗评价指标，并基于实测数据对其进行验证。［结果及结论］车轮多边形程度指标K受轨道不平顺影响小，能够定量地反映车轮的不圆程度；基于评价指标K计算获得的车轮多边形幅值与实际车轮的圆周径跳幅值具有较好的一致性。
Abstracts:
［Objective］ Metro wheel polygonal wear causes vehicle vibration, affecting the smoothness and comfort of the vehicle operation. The existing static detection methods for wheel out-of-roundness consume a lot of manpower and mat-erial resources, a dynamically monitoring for the wheel polygonal wear severity is required. ［Method］ A dynamic simulation model of whole-vehicle rigidity and sub-rail foundation flexibility is established; a wheel polygonal order characteristic analysis method based on rail vibration acceleration is proposed; the wheel polygonal wear evaluation index is analyzed and verified based on measured data. ［Result & Conclusion］ The wheel polygonal degree index K is less affected by track irregularity and can quantitatively reflect the degree of wheel out-of-roundness; the wheel polygonal amplitude calculated based on the evaluation index K has better consistency with the actual wheel circumferential radial runout amplitude.
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