论文部分内容阅读
建立弹性长枕无砟轨道的梁—梁—板模型,计算垂向位移、加速度与行车速度的关系,扣件瞬时上拔力与行车速度的关系,垂向位移、加速度与扣件、枕套和路基刚度的关系,垂向位移、加速度与长枕、道床板质量的关系等;分析无砟轨道弹性长枕在不同扣件、枕套、地基刚度和不同弹性长枕、道床板质量下的动力响应;找出扣件、枕套、地基刚度及弹性长枕、道床板质量与垂向速度、加速度、轨枕侧滚等的关系。在弹性长枕、道床板质量和扣件、枕套、地基刚度不变情况下,计算列车不同速度下各垂向动力响应,找出列车速度与垂向位移、加速度的关系。
The relationship between vertical displacement, acceleration and driving speed, the relationship between instantaneous pull-out force and driving speed, vertical displacement, acceleration and fasteners, pillow case and The relationship between the stiffness of the subgrade and the vertical displacement and acceleration and the relationship between the length of pillow and the quality of the ballast, etc .; the dynamic response of the ballastless elastic long pillow under different buckle, pillowcase, foundation stiffness and different elastic pillows, ; Find the buckle, pillowcases, foundation stiffness and elastic pillow, the quality of the bed board and the vertical velocity, acceleration, sleeper rolling relationship. Under the condition of elastic pillow, track bed quality, fastener, pillow case and foundation stiffness, the vertical dynamic response of train at different speeds is calculated to find out the relationship between train speed, vertical displacement and acceleration.