铁道标准设计2017，Vol.61Issue(1)：6-10,5.DOI:10.13238/j.issn.1004-2954.2017.01.002
扣件支承模拟方式对车辆轨道动力学行为的影响
Influence of Simulation Mode of Fastener Supporting on Vehicle-track Dynamic Behavior
摘要
Abstract
The vehicle-track dynamic model is established based the simulation mode of fastener supporting. The differentiations in dynamic behavior in terms of wheel-rail force, rail vibration acceleration and rail deformation in various fastener supporting modes including single-point supporting mode, multi-point supporting mode and continuous supporting mode are studied. Results show that:(1) for wheel-rail interaction relationship, the vertical and lateral wheel-rail force is the largest for single-point supporting mode and smallest for continuous supporting mode, the value of vertical and lateral wheel-rail force of multi-point supporting mode rests between single-point mode and continuous mode;(2) the value of vibration acceleration of rail and slab for single-point supporting is obviously larger than that of the other two supporting modes; ( 3 ) the moment and displacement of single-point supporting mode is the largest of the three supporting modes due to the large local bearing force in rail foot. Thus, the establishment of vehicle-track dynamic model with multi-point supporting mode is appropriate to simulate fastener system.关键词
扣件/单点支承/多点支承/连续支承/车辆/轨道动力学Key words
Fastener/Single-point supporting/Multi-point supporting/Continuous supporting/Vehicle-track dynamics分类
交通工程引用本文复制引用
郭亮武,蔡小培,侯博文,彭华..扣件支承模拟方式对车辆轨道动力学行为的影响[J].铁道标准设计,2017,61(1):6-10,5.基金项目
国家自然科学基金(51578053、61134003) （51578053、61134003）
北京市科委资助项目( Z141100002714011) （ Z141100002714011）
中国铁路总公司科技开发计划课题(2014G001-F) （2014G001-F）
