| 地铁车辆转向架构架疲劳可靠性预测研究 |
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| 引用本文： | 王社锋,赵洪伦,任利惠.地铁车辆转向架构架疲劳可靠性预测研究[J].机车电传动,2009(1). |
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| 作者姓名： | 王社锋 赵洪伦 任利惠 |
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| 作者单位： | 同济大学,铁道与城市轨道交通研究院,上海,201804 |
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| 摘 要： | 根据实测的动应力数据,运用雨流计数法编制了二维应力谱,并在已知材料P-S-N曲线存活概率为50%和95%的情况下,推得任意存活概率的P-S-N曲线的方法.进而得到存活概率为99.9%的P-S-N曲线.对某地铁车辆的转向架构架进行了不同可靠度下的疲劳寿命预测.
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| 关 键 词： | 地铁车辆 转向架 动应力 可靠度 疲劳寿命 雨流计数法 |
The Fatigue Reliability Prediction and Study for the Bogie Frame of Metro Vehicles |
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| WANG She-feng,ZHAO Hong-lun,REN Li-hui.The Fatigue Reliability Prediction and Study for the Bogie Frame of Metro Vehicles[J].Electric Drive For Locomotive,2009(1). |
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| Authors: | WANG She-feng ZHAO Hong-lun REN Li-hui |
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| Institution: | Institute of Railway and Urban Mass Transit;Tongji University;Shanghai 201804;China |
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| Abstract: | Based on the dynamic stress data tested on line, the rain flow counting method is used to count the cycle of the stress-time history for constructing the two dimensions stress spectrum. An approach is carried out to derive the P-S-N curves of arbitrary survival probability from fatigue test data of two basic stress-life curves under the survival probability 50% and 95%. Thus, the P-S-N curve of survival probability of 99.9% can be obtained. At last, the fatigue life for the bogie frame of metro vehicle is p... |
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| Keywords: | metro vehicle bogie dynamic stress reliability fatigue life rain flow counting method |
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