地铁车辆轮径差限值的研究
郭燕辉
Research on Wheel Diameter Difference Limit Value of Metro Vehicle
GUO Yanhui
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作者信息:北京市地铁运营有限公司， 100044， 北京
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Affiliation:Beijing Subway Operation Co., Ltd., 100044, Beijing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.04.010
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中图分类号/CLCN:U270.331+1
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栏目/Col:研究报告
摘要:
轮径差限值是地铁车辆运用及维护中重要的检查指标，对车辆运营的安全性及车辆维护成本等有较大影响，车轮磨损产生的轮径差变化会对车辆的牵引系统及制动系统性能，以及动力学性能等产生较大的影响。分析新造地铁车辆及运用状态下车辆的轮径差限值发现，用户对新造车辆的轮径差要求基本一致，差别不大。分析了牵引系统和制动系统采用车控模式和架控模式时对地铁车辆的轮径差要求。分析结果表明：架控模式下，同一辆车的前后转向架的较大轮径差对车辆动力学性能影响不大，对牵引系统和制动系统性能基本无影响。建议运营单位可逐步放宽对架控模式下同一辆车前后转向架的最大轮径差限值要求，并对车辆状态进行监控和分析，以最终确定同一辆车前后转向架的轮径差限值要求。
Abstracts:
The wheel diameter difference limit value is an important inspection index for metro vehicle operation and maintenance, having profound influence on vehicle operation safety and vehicle maintenance cost. The wheel diameter difference change caused by wheel wear will have large impact on vehicle traction system, braking system and dynamics performance. After analyzing the wheel diameter difference limit value of newly built metro vehicles and vehicles in operation, it is discovered that users have practically the same requirements for wheel diameter difference of newly built vehicles. The wheel diameter difference requirements under vehicle control mode and frame control mode of traction system and braking system are analyzed, and results show that under frame control mode, the larger wheel diameter difference of front and rear bogies in one vehicle has little impact on vehicle dynamics performance and basically no impact on traction system and braking system performance. It is suggested that the operation units can gradually release requirements on maximum wheel diameter difference limit value of front and rear bogies of the same vehicle under frame control mode, while monitoring and analyzing the vehicle status to finally determine the wheel diameter difference limit requirements for the front and rear bogies of the samevehicle.
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