| Because our country is a large country, and therefore the rail transit is still for domestic mainstream channels, with the development of railway technology, in view of the problem caused by railway also has attracted much attention, especially the inter-city railway and subway vibration problem in the process of operation, such as possible impact on the surrounding residential building, so it has become a key point in the research of railway track.The essay focuses on the analysis of rubber shock pad floating slab solid bed shock absorption performance, and analysis of rubber shock pad of the construction technique of floating slab track.Combined with theoretical analysis and finite element simulation method, and the city subway wai, vibration problems in analysis of metro operation, understand the subway vibration in the operation of the mechanism of influence degree, mode of transmission, as well as specific analysis.The vibration of the first, build the scientific evaluation standard, to understand and evaluate the influence of vibration and simple layered method.Then, on the basis of the vibration influence of orbit, and build the train- cushioning coupling vibration model of floating slab track(FST), using ANSYS to carry on the system analysis, it is concluded that the rubber pad parameters on the car body vibration and the influence law of ground reaction force, in the analysis it is concluded that the higher the rubber pad stiffness, the car body vertical vibration, the greater the rubber cushion damping,the greater the bodywork fugitive dust is smaller, the greater the ground reaction force.Finally, based on the Beijing, analyses the effect of the subway, validation of rubber cushion floating slab cushioning the actual damping performance;Finally, from the perspective of application and design, to explore and explain the rubber damping pad of floating slab track construction technology and matters needing attention. |
PDF Full Text Request