| 转K7型转向架副构架疲劳强度分析 |
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| 引用本文： | 赵方伟,王璞,李亨利,谢基龙.转K7型转向架副构架疲劳强度分析[J].北方交通大学学报,2012(1):132-134,139. |
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| 作者姓名： | 赵方伟 王璞 李亨利 谢基龙 |
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| 作者单位： | [1]北京交通大学机械与电子控制工程学院,北京100044 [2]南车眉山车辆有限公司,眉山620032 |
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| 基金项目： | 国家科技支撑计划项目资助（2009BAG12A07）;北京交通大学研究生创新项目资助（2011YJS060） |
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| 摘 要： | 在ANSYS11．0有限元软件中建立转K7转向架副构架三维模型，结合其受力特点分析计算副构架的应力分布情况，依据线路实测的转K7转向架副构架交叉拉杆载荷谱及B＋级铸钢在不同铸造缺陷系数下的S-N曲线，采用有限寿命设计理论，预测了副构架的疲劳寿命，结果表明，副构架具有较高的疲劳寿命储备，能满足运用要求．
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| 关 键 词： | 疲劳 副构架 有限元 载荷谱 |
Fatigue strength analysis of deputy frame of K7 bogie |
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| ZHAO Fangwei,WANG Pu,LI Hengli,XIE Jilong.Fatigue strength analysis of deputy frame of K7 bogie[J].Journal of Northern Jiaotong University,2012(1):132-134,139. |
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| Authors: | ZHAO Fangwei WANG Pu LI Hengli XIE Jilong |
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| Institution: | 1 School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044,China; 2. CSR MEISHAN CO. ,LTD, Mdshan 620032, China) |
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| Abstract: | A three-dimensional model of deputy frame of K7 Bogie was established by using the finite element software of ANSYS11.0. Combined with the force characteristics, the stress distribution of the deputy frame was analyzed and calculated. According to the measured load spectrum of rods of deputy frame and S-N curve of B ＋ grade casting steel in different defects factor, and with the help of finite life design theory, the fatigue life of deputy frame, which met the practical application requirements, was finally predicted. |
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| Keywords: | fatigue deputy frame FEM load spectrum |
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