碳滑板磨耗型面对弓网动力学性能影响
王旭阳1周宁1支兴帅1李智威1张卫华1鲁小兵2杨佳2杨邑宏3
Influence of Carbon Contact Strip Wear Profile on the Dynamic Performance of Pantograph-Catenary System
WANG Xuyang1ZHOU Ning1ZHI Xingshuai1LI Zhiwei1ZHANG Weihua1LU Xiaobing2YANG Jia2YANG Yihong3
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作者信息:1.西南交通大学轨道交通运载系统全国重点实验室， 610031， 成都
2.中铁二院工程集团有限公司， 610031， 成都
3.中国测试技术研究院， 610021， 成都
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Affiliation:1.State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, 610031, Chengdu, China
2.China Railway Eryuan Engineering Group Co., Ltd., 610031, Chengdu, China
3.National Institute of Measurement and Testing Technology, 610021, 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.2025.04.009
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中图分类号/CLCN:TM922.6
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栏目/Col:研究报告
摘要:
［目的］碳滑板异常磨耗型面会降低弓网动态耦合性能，使受流质量变差，加速碳滑板与接触线磨损。为了找出使弓网动态接触性能变差的关键碳滑板磨耗参数，有必要研究碳滑板磨耗型面对弓网动力学性能的影响。［方法］建立了考虑碳滑板磨耗型面的受电弓刚柔混合动力学模型，研究不同碳滑板磨耗型面对弓网动力学性能的影响，通过地铁线路实测数据验证了模型的准确性。在此基础上，通过实测磨耗后碳滑板磨耗型面数据对碳滑板磨耗型面进行建模，研究了不同型面下的接触力响应。［结果及结论］对未服役型面接触力有较大影响的是跨距通过频率的基频以及受电弓垂向运动的倍频，对服役型面各个频率段对接触力均有影响；当碳滑板表面高度差小于1.5 mm时，接触力标准差与最大值迅速增大；当碳滑板表面高度差在1.5～3.0 mm时，接触力标准差与最大值保持相对稳定状态；当碳滑板表面高度差超过3.0 mm时，接触力标准差与最大值快速增大，最大值超过300 N。
Abstracts:
［Objective］ The carbon contact strip abnormal wear profile will reduce the dynamic coupling performance of the pantograph-catenary (PC), deteriorate the current collection quality, and accelerate the wear of the carbon contact strip and the contact wire. In order to find out the key carbon contact strip wear parameters that deteriorate the PC dynamic contact performance, it is necessary to study the influence of the carbon contact strip wear profile on the PC dynamic performance. ［Method］ A rigid flexible hybrid dynamic model of the pantograph considering the carbon contact strip wear profile is established, to study the influence of different carbon contact strip wear profiles on the PC dynamic performance. The accuracy of the model is verified by the measured data of the subway line. On this basis, the carbon contact strip wear profile is modeled through the measured wear profile data of the carbon contact strip after wear, and the contact force response under different profiles is studied. ［Result & Conclusion］ The fundamental frequency of the span passing frequency and the multiple frequency of the pantograph vertical movement make a greater contribution to the not-in-service profile, and each frequency band has influence on the contact force for the profiles in service; when the height difference of carbon contact strip is less than 1.5 mm, the standard deviation and maximum value of the contact force increase rapidly; when the height difference of carbon contact strip is 1.5~3.0 mm, the standard deviation and maximum value of the contact force remain in relatively stable state; when the height difference of carbon contact strip exceeds 3.0 mm, the standard deviation and maximum value of the contact force increase rapidly, with the maximum value exceeding 300 N.
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