| 铝合金车体疲劳寿命预测新方法及其应用 |
| |
| 引用本文： | 王立航,方吉,马纪军. 铝合金车体疲劳寿命预测新方法及其应用[J]. 大连铁道学院学报, 2010, 0(3): 9-11 |
| |
| 作者姓名： | 王立航 方吉 马纪军 |
| |
| 作者单位： | 中国北车集团唐山轨道客车有限责任公司产品研发中心;大连交通大学交通运输工程学院; |
| |
| 基金项目： | 铁道部科学研究计划资助项目(2009J005-C) |
| |
| 摘 要： | 针对铝合金车体的广泛应用,从可靠性的要求出发,引进了一种可以对铝合金车体焊缝的疲劳寿命进行预测的新方法——主S-N曲线法,该法已经列为美国ASME标准,可以有效的解决焊缝疲劳寿命问题.基于有限元模型,提出了车体虚拟疲劳试验的概念（VFT）,即从EN12663标准中获取车体振动加速度,从有限元模型中获取应力,然后基于主S-N曲线的参数计算车体焊缝上疲劳寿命.最后,通过一个工程实际问题,验证了这一方法对铝合金车体抗疲劳设计的有效性.
|
| 关 键 词： | 铝合金车体 主S-N曲线法 疲劳寿命预测 |
Design Principle and New Method of Fatigue Life Prediction for Aluminum-Alloy Car-Body |
| |
| WANG Li-hang,FANG Ji,MA Ji-jun. Design Principle and New Method of Fatigue Life Prediction for Aluminum-Alloy Car-Body[J]. Journal of Dalian Railway Institute, 2010, 0(3): 9-11 |
| |
| Authors: | WANG Li-hang FANG Ji MA Ji-jun |
| |
| Affiliation: | WANG Li-hang1,FANG Ji2,MA Ji-jun1(1.China North Vehicle Group,Tangshan Railway Vehicle Co.,Ltd.R & D Center,Tangshan 063035,China,2.School of Traffic amd Transportation Engineering,Dalian Jiaotong University,Dalian 116028,China) |
| |
| Abstract: | In order to satisfy the reliability needs for aluminum-alloy car-body,a new approach named as main S-N curve method is introduced,based on the FEA model,one concept called as Virtual Fatigue Test(VFT) is proposed to calculate the fatigue life based on the accelerations from EN12663 standard and stresses from FEA model.Finally,the effectiveness of this new approach is verified by a real engineering practice. |
| |
| Keywords: | aluminum-alloy car-body main S-N curve method fatigue life prediction |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
