摘要
对高频轮轨相互作用下轨道的波浪形磨损问题进行了考察。通过引入轮轨的灵敏度 ,得到了轮轨间蠕滑力的波动同轨道表面不平顺幅值和表面曲率的波动关系 ;通过引入摩擦功计算了轨道表面的磨损 ,得到了磨损率的计算公式。结果表明 ,钢轨的磨损率同轨道的垂向动力行为密切相关 ;轨道表面不同点在不同激振频率下的磨损率不同。
The rail corrugation in the presence of high frequency wheel/rail interaction was investigated. The receptance of the rail was introduced to establish a model to predict the rail corrugation, based on correlating the rail receptance with the fluctuation of the wheel/rail creep-force and with that of the amplitude of the running rail surface. The profile change of the rail surface due to wear was calculated with frictional power hypothesis and the corrugation rate of the rail was obtained. It is found that the rail corrugation rate is closely related to the vertical dynamic behavior, and different corrugation rates are observed at individual locations of the rail at distinct exciting frequencies.
出处
《应用力学学报》
EI
CAS
CSCD
北大核心
2004年第4期6-11,共6页
Chinese Journal of Applied Mechanics
基金
国家自然科学基金资助项目 (5 993 5 10 0 )
优秀博士论文基金资助项目 (2 0 0 0 48
2 0 0 2 48)
