A carregar...
Publicação
The Influence of Damping on Vibration Induced by High-Speed Trains
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 333.37 KB | Adobe PDF |
Autores
Orientador(es)
Resumo(s)
Passage of high-speed trains may induce high ground and track vibrations, which,
besides increasing wheel, rail and track deterioration, may have a negative impact on
the vehicle stability and on the passengers comfort. In this paper two distinct
analyses are presented. The first one is dedicated to efficient decoupling of rail and
soil vibrations by suggesting new interface materials in rail-sleeper fixing system,
i.e. in the part where damping efficiency can be directly controlled and tested. The
second analysis concerns with an adequate model of soils damping. Proper
understanding and correct numerical simulation of this behaviour can help in
suggesting soil improvement techniques.
Descrição
Palavras-chave
high-speed trains, induced vibration, finite element modelling, commercial software, decoupling of vibrations, negative stiffness, composite materials, Reuss bound, Rayleigh damping, numerical analysis.