摘要
本文深入地分析了钢轨接头处轮轨碰撞的机理;按照弹性碰撞理论给出了轮轨最大压缩变形α同_(ax)和 P_1力的理论解;对 Jenkins 公式存在的问题进行了分析;建议了碰撞时间公式和剪力波传播速度公式;对轨道有效质量取值问题进行了讨论,提出了改进建议。
This paper analyzes the wheel-rail impact mechanism at rail joints.According to the elastic impact theory,the theoretic resolution of wheel-rail maximum relative compressive deformation α_(max) and the impact forceP_1 are presented.This paper proposes some opinions about Jenkins formulas.The impact duration time formula and the shear wave propagation speedformula are also suggested.The problem of track effective mass is discussedand an improving suggestion about how to take its value is given.
出处
《兰州铁道学院学报》
1992年第4期1-9,共9页
Journal of Lanzhou Railway University
关键词
轨道
轮轨关系
轨缝
trackways
wheel rail relation
rail joints
