摘要
针对某一典型路桥过渡段,利用Fortran语言编制车辆-轨道-过渡段动力大耦合计算程序,借助轨道不平顺性的实测数据,深入分析了不同速度高速列车通过该区段时车体的各项动力学指标,并开展了参数研究,得出以下结论：在150～250km/h的运行速度下,行车的安全性和舒适性指标均能满足规范要求;不平顺幅值对车体响应有着重要影响,缩短波长措施可以有效降低车体振动加速度,提高列车行车平稳性与舒适性。
Aiming at the typical subgrade,this paper establishes the vehicle-track-transition coupled system by using the Fortran program which combines the ride performance,and then makes the parameter research,and the conclusions are shown as follows： when the speed is 150 ～ 250 km / h,the safety and comfortableness coefficients can meet the requirements in the standards. There are some significant effect of irregularity on the dynamic responses,shorting the wave length can reduces the shaking acceleration and improve the smoothness.
出处
《施工技术》
CAS
北大核心
2016年第15期136-140,共5页
Construction Technology
关键词
铁路
路桥过渡段
动力响应
加速度
研究
railways
bridge（culvert）-subgrade transition
dynamic responses
acceleration
study
