| 上海轨道交通9号线车辆转向架轴箱吊耳失效分析及优化建议 |
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| 引用本文： | 印祯民.上海轨道交通9号线车辆转向架轴箱吊耳失效分析及优化建议[J].城市轨道交通研究,2020(5):31-34. |
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| 作者姓名： | 印祯民 |
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| 作者单位： | 上海地铁维护保障有限公司车辆分公司 |
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| 摘 要： | 针对上海轨道交通9号线车辆转向架轴箱吊耳出现裂纹和断裂问题,分析了轴箱吊耳材料的化学成分,建立了轴箱吊耳有限元模型,校核了其静强度和疲劳强度。结合线路轮轨振动试验,获得了实际的轴箱吊耳振动数据,综合评估分析了转向架轴箱吊耳断裂失效原因。确定共振是引起轴箱吊耳断裂的主要原因。提出了尺寸优化、结构优化和改善线路状况等可行的优化建议。
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| 关 键 词： | 城市轨道交通 车辆 轴箱吊耳 故障分析 部件优化 |
Failure Analysis of Axle Box Hanger on Shanghai Rail Transit Line 9 and Optimization Suggestions |
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| YIN Zhenmin.Failure Analysis of Axle Box Hanger on Shanghai Rail Transit Line 9 and Optimization Suggestions[J].Urban Mass Transit,2020(5):31-34. |
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| Authors: | YIN Zhenmin |
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| Institution: | (Vehicle Branch,Shanghai Metro Maintenance Guarantee Co.,Ltd.,200235,Shanghai,China) |
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| Abstract: | For the crack and fracture problems in the bogie axle box hanger on Shanghai metro Line 9,the chemical composition of the material is analyzed.Then,a finite element model of the axle box hanger is established to check the static strength and fatigue strength.Combined with the line′s wheel-rail vibration test,the actual axle box hanger vibration data are obtained.Through a comprehensively evaluation of the bogie axle box hanger fracture failures,and the resonance is detected as the main cause of the axle box hanger fracture.Therefore,feasible optimization suggestions are proposed. |
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| Keywords: | urban rail transit vehicle axle box hanger failure analysis component optimization |
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