| 重载铁路复合不平顺的仿真计算及安全限值研究 |
| |
| 引用本文： | 陈睿颖,;许玉德,;程建平.重载铁路复合不平顺的仿真计算及安全限值研究[J].华东交通大学学报,2014(4):33-37. |
| |
| 作者姓名： | 陈睿颖 ;许玉德 ;程建平 |
| |
| 作者单位： | [1]同济大学道路与交通工程教育部重点实验室,上海200092; [2]朔黄铁路发展有限责任公司,河北沧州062350 |
| |
| 基金项目： | 国家科技支撑计划项目（2013BAG20B00） |
| |
| 摘 要： | 铁路轨道几何形位不平顺是车辆振动及轮轨动力作用增大的重要激振源,而其中水平和轨向反向复合不平顺对轨道动力响应和行车安全有着极不利影响。针对重载铁路C80型铝合金敞车,用Simpack多体动力学仿真软件,建立车辆-轨道耦合模型,取水平、轨向最不利波长条件下,对复合不平顺各种幅值组合的工况进行仿真,分析各动力响应指标与列车速度、不平顺幅值的关系,并提出其安全限值,供工务管理参考。
|
| 关 键 词： | 重载铁路 复合不平顺 水平不平顺 轨向不平顺 动力响应 轮重减载率 |
Simulation and Safety Criterion on Complex Geometry Irregularities of Heavy Haul Railway |
| |
| Institution: | Chen Ruiying, Xu Yude, Cheng Jianping(1. Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China; 2. Shuohuang Railway Development Co., Ltd.,Cangzhou 062350, China) |
| |
| Abstract: | Track geometry irregularity is an important excitation source for the train running smoothness and dynamic response between wheel and rail, The paper establishes the dynamic model with Simpack multi-body dynamics emulation software to simulate C80-type trains running on the track. Calculations of the vibration responses for the vehicle body are made with unfavorable combination of different wavelengths of horizontal and alignment irregularities. It compares and analyzes the dynamic responses aroused by speed of the train and amplitude of the complex irregularities. Then it provides theoretical safety criterion for guidance of controlling irregularities in the railway maintenance and relevant managerial work. |
| |
| Keywords: | heavy haul railway complex irregularities horizontal irregularities alignment irregularities dynamic response rate of wheel load reduction |
| 本文献已被 维普 等数据库收录！ |
|
