| 牵引电机振动对构架疲劳强度的影响 |
| |
| 引用本文： | 安琪,李芾,傅茂海.牵引电机振动对构架疲劳强度的影响[J].西南交通大学学报,2010,45(2). |
| |
| 作者姓名： | 安琪 李芾 傅茂海 |
| |
| 作者单位： | 西南交通大学机械工程学院,四川成都,610031 |
| |
| 基金项目： | 国家自然科学基金，国家科技支撑计划 |
| |
| 摘 要： | 为分析造成地铁车辆动力转向架牵引电机吊座附近区域出现疲劳裂纹的原因,用有限单元法分析了构架的疲劳强度.结果表明:电机吊座附近区域的应力主要受电机垂向振动载荷影响,电机垂向振动载荷增大不影响节点平均应力,但使其应力幅值增大.垂向振动加速度从1g增大到10g时,考察点应力幅值增大约1.5倍,安全系数由2.68降低至接近1.00.在标准规定的水平振动加速度范围内,构架节点安全系数无变化.
|
| 关 键 词： | 疲劳强度 振动 构架 牵引电机 转向架 |
Influences of Traction Motor Vibration on Bogie Frame Fatigue Strength |
| |
| AN Qi,LI Fu,FU Maohai.Influences of Traction Motor Vibration on Bogie Frame Fatigue Strength[J].Journal of Southwest Jiaotong University,2010,45(2). |
| |
| Authors: | AN Qi LI Fu FU Maohai |
| |
| Institution: | AN Qi,LI Fu,FU Maohai(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
| |
| Abstract: | To analysis the causes of fatigue failure on the area around the traction motor seat of metro vehicle power bogie frames,the fatigue strength of the frame was calculated by using FEM.The calculated results show that the stresses on the area around the traction motor seat are mainly influenced by the vertical vibrations of traction motor.Increases in vertical vibration acceleration of the traction motor causes an increase in stress amplitudes of the dangerous nodes although it basically has no effect on the ... |
| |
| Keywords: | fatigue strength vibration frame traction motor bosie |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
