|
|||||
|
|
| 车轴表面应力分析 | |
| 引用本文： | 封全保,刘建新,吕士勇.车轴表面应力分析[J].交通运输工程学报,2005,5(3):1-4. |
| 作者姓名： | 封全保 刘建新 吕士勇 |
| 作者单位： | 1. 北京交通大学,机电学院,北京,100044;大同电力机车有限责任公司,山西,大同,037038 2. 西南交通大学,牵引动力国家重点实验室,四川,成都,610031 3. 大同电力机车有限责任公司,山西,大同,037038 |
| 基金项目： | 铁道部科技研究开发计划项目（2001J001-B）;中国北车集团科技研究开发计划项目（001NJ001）. |
| 摘 要： | 为了提高车轴寿命，使车轴表面产生较大压应力，分析了50钢车轴表面残余应力变化规律，采用X射线法检测了车轴表层经过低温淬火和滚压后的轴向、周向和径向应力。测试结果表明，采用此方法后，车轴表面的残余应力大幅提高，最大增幅为556MPa，且应力分布均匀，说明此方法能够有效提高车轴的疲劳寿命。 |
| 关 键 词： | 车辆工程 车轴应力 低温淬火 滚压 残余压应力 表面残余应力 车轴 应力分析 疲劳寿命 变化规律 |
| 文章编号： | 1671-1637(2005)03-0001-04 |
| 收稿时间： | 2005-04-13 |
| 修稿时间： | 2005年4月13日 |
Surface stress analysis of vehicle axle |
|
| Feng Quan-bao,Liu Jian-xin,Lu Shi-yong.Surface stress analysis of vehicle axle[J].Journal of Traffic and Transportation Engineering,2005,5(3):1-4. | |
| Authors: | Feng Quan-bao Liu Jian-xin Lu Shi-yong |
| Abstract: | In order to improve the fatigue life and surface pressure stress of 50# steel axle, its stress change rules were analysed, its residual stress was measured by X ray method when the axle surface was going through the process of low-temperature quenching and the various process of rolling and pressing. Measured results show that the residual stress of 50# steel axle surface are improved greatly, the maximum improved value is 556 MPa, which shows that the method can efficiently improved the axle fatigue life cycle. 8 tabs, 6 figs, 9 refs. |
| Keywords: | vehicle engineering axle stress low-temperature quenching rolling and pressing residual pressure stress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |