摘要
由于轨道刚度是铁路轨道设计的重要参数 ,直接影响到列车的运行安全和平稳性 ,因此运用车辆 -轨道垂向系统统一模型和新型预测 -校正数值积分法 ,对铁路快速列车以不同速度通过因道床和轨下垫层刚度变化而引起的动力不平顺轨道段时车辆和轨道的响应进行了仿真计算 ,进一步分析了轨道纵向刚度变化对铁路快速列车轮轨受力的影响 .
Track rigidity is one of the important parameters in designing railway track,which directly influences the safety and smoothness of the railway train running.The paper,by means of the unified model of vertical vehicle-track systems and new predictor-corrector method based on newmark method by Prof.ZHAI,performs a simulating calculation of the response of the railway track and railway vehicle,with different speed,caused by ballast and sub-rail pad longitudinal rigidity change.Further more,the paper analyzes the influence of the longitudinal rigidity change of railway track upon wheel/rail force under fast speed trains.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2001年第11期1276-1281,共6页
Journal of Tongji University:Natural Science
基金
高等学校骨干教师资助项目
铁道部科技发展基金资助项目 (J98Z2 2 7)
