地铁车辆钢弹簧断裂后的扭曲轨道通过安全性研究

张顺; 江超; 孙业聪

doi:10.13433/j.cnki.1003-8728.20220057

地铁车辆钢弹簧断裂后的扭曲轨道通过安全性研究

doi: 10.13433/j.cnki.1003-8728.20220057

南京中车浦镇城轨车辆有限责任公司, 南京 210031

详细信息

作者简介:
张顺(1981-), 高级工程师, 本科, 研究方向为车辆电气, kwang_up@163.com

中图分类号: U270.11
计量
- 文章访问数: 129
- HTML全文浏览量: 46
- PDF下载量: 17
- 被引次数: 0
出版历程
- 收稿日期: 2021-07-05
- 刊出日期: 2023-07-25

Safety Analysis of Passing Through Twisted Track After Steel Spring Fracture of Metro Vehicle

Nanjing CRRC Puzhen Urban Rail Vehicle Co., Ltd., Nanjing 210031, China

摘要

摘要: 针对地铁车辆转向架常见的一系钢弹簧断裂故障，首先从理论上分析了钢弹簧断裂后的参数变化，然后建立了地铁车辆的动力学仿真模型，考虑弹簧端部支撑圈断裂和弹簧中部有效圈断裂两种故障类型，对比分析了故障车辆和正常车辆通过扭曲轨道的各项安全性指标。研究结果表明：钢弹簧断裂对车辆垂向相关的安全性指标影响明显，主要是轮重减载率和脱轨系数，对轮轴横向力影响很小；此外，不同的钢弹簧断裂类型对车辆的安全性指标影响规律类似，但是数值不同；虽然钢弹簧断裂会恶化车辆的安全性指标，但是各项安全性指标均小于相应的限值，满足标准要求。
- 地铁车辆 /
- 钢弹簧断裂 /
- 扭曲轨道 /
- 安全性
Abstract: Aiming at the common primary steel spring fracture fault of metro vehicle bogie, the parameter change after steel spring fracture is analyzed, and then the dynamic simulation model for the metro vehicle is established. Considering two failure types of spring end support ring fracture and spring middle effective ring fracture, the safety indexes of fault vehicle and normal vehicle passing through the twisted track are compared and analyzed. The results show that the steel spring fracture has obvious influence on the vertical related safety indexes of vehicles, mainly the wheel unloading ratio and the derailment coefficient, and has slight impact on the wheel axle lateral force. In addition, different types of steel spring fracture have similar influence on the vehicle safety index, but the values are different. The steel spring fracture can worsen the vehicle safety index, but all safety indexes are smaller than the corresponding limit values, which meet the requirements of the standard.
- metro vehicle /
- steel spring fracture /
- twisted track /
- safety

HTML全文

图 1 地铁车辆钢弹簧断裂

Figure 1. Railcar steel spring fractures

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图 2 地铁车辆动力学仿真模型

Figure 2. The simulation model for railcar dynamics

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图 3 叠加三角坑的扭曲轨道

Figure 3. Distorted track with overlapped triangular pits

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图 4 弹簧有效圈断裂模拟力元

Figure 4. Finite element simulation of spring coil fractures

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图 5 车辆安全性指标弹簧端部支撑圈断裂

Figure 5. Vehicle safety indicator-end part support coil section of the spring fracture

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图 6 车辆安全性指标弹簧中部有效圈断裂

Figure 6. Vehicle safety indicator-effective coil section in the middle part of the spring fracture

下载: 全尺寸图片幻灯片

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