Analysis of vibration reduction characteristics and applicability of steel-spring floating-slab track

查看全文 作　　者：Wanming ZHAI Peng XU Kai [1]WEI

机构地区：[1]Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, China

出　　处：《Journal of Modern Transportation》索引2011年第19卷第4期,共8页

基　　金：supported by the Key Project of Science and Technology in an Action of Shanghai Scientific and Technological Innovation (No. 09231201600);the National Natural Science Foundation of China(No. 50823004);the Science and Technology Department of Sichuan Province 摘　　要：A coupled dynamics computation model for metro vehicles,along with a steel-spring floating-slab track,is developed based on the theory of vehicle-track coupled dynamics.Using the developed model,the influences of the thickness,length and mass of floating-slab,spring rate and its arrangement space,running speed,etc.on the time and frequency domain characteristics of steel-spring fulcrum force are analyzed.The applicability of steel-spring floating-slab track is discussed through two integrated example cases of metro and buildings possessing distinct natural vibra-tion characteristics.It is concluded that,it is quite significant,in the optimization modular design of the parameters of steel-spring floating-slab track,to take the matching relationship of both the amplitude-frequency characteristics of steel-spring fulcrum force and natural vibration characteristics of integrated structures into comprehensive considera-tion.In this way the expensive steel-spring floating-slab track can be economically and efficiently utilized according to the site condition,and at the same time,the economic losses and bad social impact resulted from the resonance during usage of steel-spring floating-slab track can be avoided. 关键词：钢弹簧浮置板浮置板轨道适用性分析减振特性固有振动特性动力学计算模型地铁车辆浮置板式轨道

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Analysis of vibration reduction characteristics and applicability of steel-spring floating-slab track

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