华东交通大学学报Issue(3)：55-60,6.
地铁弹性扣件失效对轨道结构振动特性的影响
Influences of Elastic Fastener Failure on Vibration Characteristics of Subway Track Structure
摘要
Abstract
By use of the numerical method of vibration analysis of vehicle and track system with the vehicle ele-ment and track element,the influences of elastic fastener failure on vibration characteristics of subway track structure are investigated. The research results show that the interaction between wheel and rail increases when a vehicle passes through the track with failure fastener,moreover,the value of each dynamic index grows rapid-ly. As the number of failure fastener increases,so do the system dynamic responses. The supporting force of the track structure which is near the failure fastener also grows remarkably and will speed up deterioration of the track geometry. Furthermore,for the properties of low stiffness and rubber pad easily aging of subway elastic fastener,the impact of the dynamic response generated by failure fastener will be more significant with the surge of traffic density.关键词
弹性扣件/扣件失效/轮轨相互作用/轨道结构振动Key words
elastic fastener/fastener failure/wheel-rail interaction/track structure vibration分类
交通工程引用本文复制引用
..地铁弹性扣件失效对轨道结构振动特性的影响[J].华东交通大学学报,2013,(3):55-60,6.基金项目
铁路环境振动与噪声教育部工程研究中心资助项目（09111094）；国家自然科学基金项目 （）
