摘要
介绍了滚动接触疲劳裂纹的萌生及扩展的形成机理、钢轨滚动接触疲劳的破坏分类、影响因素,从钢轨新材料的开发、轮轨接触几何型面的优化和铁路工况的改善等几个方面提出了减缓钢轨滚动接触疲劳的措施。
The formation mechanism of fatigue crack initiation and fatigue crack propagation under rolling contact was analyzed. The classification of rail rolling contact fatigue and the influence factor of contact fatigue were introduced. Some measures were put forward to reduce rail rolling contact fatigue from the development of new rail material, the optimization of rail contact geometry surface and the improvement of rail working condition.
出处
《润滑与密封》
CAS
CSCD
北大核心
2005年第6期195-199,203,共6页
Lubrication Engineering
基金
国家自然科学基金项目(50323003)
西南交通大学校基金项目
关键词
钢轨
轮轨接触
滚动接触疲劳
疲劳裂纹萌生
railway rail
wheel/rail contact
rolling contact fatigue
fatigue crack initiation
