摘要
基于新型可便捷检修和更换的城市轨道交通橡胶浮置板隔振器,利用ADAMA-Matlab联合仿真方法,考虑了隔振器的滞后非线性,建立了车-轨-浮置板耦合模型。研究了车辆载荷工况、隔振器布置数量和支撑失效情况对隔振器减振性能的影响。仿真研究发现:满载工况下隔振器变形是空载时的2倍多,但仍满足行业规范要求;4个隔振器足以承载列车在满载和空载工况下的列车运行;浮置板在隔振器职责失效位置及周边位置的位移虽仍在规定的限值内,但已明显增大,因此当发生支撑失效时,要及时更换隔振器。
Based on a new type of vibration isolator with convenient maintenance and replacement,a coupling model of vehicle-railway-floating slab is established by using the ADAMA Matlab joint simulation method and putting the hysteretic non-linearity of the isolator into consideration.Then,the effect of vehicle load condition,number of vibration isolator arrangement and performance failure condition on the vibration isolation performance is studied.It is found that the isolator deformation in full load of train operation is twice more than that in no load condition,but it still meets the requirements of the industry specification.Since 4 vibration isolators are enough to carry the train operation under full load and no load conditions,the floating slab is significantly increased even when the slab displacement at the failure position or the surrounding positions is still within the specified limit.So,when the support failure occurs,isolators should be replaced in time.
作者
廖英英
刘亚静
刘永强
LIAO Yingying;LIU Yajing;LIU Yongqiang(School of Civil Engineering,Shijiazhuang Tiedao University,050043,Shijiazhuang,China;不详)
出处
《城市轨道交通研究》
北大核心
2020年第8期15-18,22,共5页
Urban Mass Transit
基金
国家自然科学基金项目(11790282,11802184,11902205)
河北省自然科学基金基目(A2016210099)
河北省人才工程培养经费资助科研项目(A2016002036)。
关键词
城市轨道交通
浮置板
橡胶隔振器
减振性能
刚柔耦合模型
urban rail transit
floating slab
rubber isolator
vibration damping performance
rigid-flexible coupling model
