| 水压试验对地铁车辆储风缸材料性能的影响 |
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| 引用本文： | 罗曦春,黄海东. 水压试验对地铁车辆储风缸材料性能的影响[J]. 电力机车与城轨车辆, 2009, 32(6): 33-37 |
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| 作者姓名： | 罗曦春 黄海东 |
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| 作者单位： | 广州市地下铁道总公司,广东,广州,510380 |
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| 摘 要： | 文章针对经长期使用后的地铁车辆储风缸,分析水压试验对储风缸材料性能的影响,论证仅采用水压试验能否满足对储风缸的检验要求,以取代成本较高的射线检测。文章的分析包括:储风缸材料的弹塑性变形、水压试验的强度储备、裂纹扩展、裂纹扩展迟滞效应以及相关的工艺要求。
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| 关 键 词： | 地铁车辆 储风缸 水压试验 裂纹扩展 |
Effect of hydrostatic test on material properties of air cylinder for metro vehicle |
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| LUO Xi-chun,HUANG Hai-dong. Effect of hydrostatic test on material properties of air cylinder for metro vehicle[J]. Electric Locomotives & Mass Transit Vehicles, 2009, 32(6): 33-37 |
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| Authors: | LUO Xi-chun HUANG Hai-dong |
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| Affiliation: | LUO Xi-chun,HUANG Hai-dong (Guangzhou Metro Operation Co. Ltd.,Guangzhou 510380,China) |
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| Abstract: | This paper analyses the effect of hydrostatic test on material properties of air cylinder,which is used long-term for metro vehicle. It also discusses whether the inspection requirements are achieved if only using the hydrostatic test,in order to replace the ray-test which is high cost. This analysis includes the elastic-plastic deformation of air cylinder,strength reserve of hydrostatic test,fatigue crack growth,fatigue crack growth retardation and technological requirements of relevance test. |
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| Keywords: | metro vehicle air cylinder hydrostatic test crack growth |
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